Document:

EX-10.2

Exhibit 10.2

REGISTRATION RIGHTS AGREEMENT

REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of December 28, 2005, by and among
JMAR Technologies, Inc., a Delaware corporation, with headquarters located at 10905 Technology
Place, San Diego, California 92127 (the “Company”), and the investors listed on the Schedule of
Buyers attached hereto (each, a “Buyer” and collectively, the “Buyers”).

WHEREAS:

A. In connection with the Securities Purchase Agreement by and among the parties hereto of
even date herewith (the “Securities Purchase Agreement”), the Company has agreed, upon the terms
and subject to the conditions of the Securities Purchase Agreement, to issue and sell on the date
hereof to each Buyer (i) shares (the “Common Shares”) of the Company’s common stock, par value
$0.01 per share (the “Common Stock”), and (ii) certain Warrants (the “Warrants”) which will be
exercisable to purchase additional shares of Common Stock (as exercised, the “Warrant Shares”) in
accordance with the terms of the Warrants.

B. To induce the Buyers to execute and deliver the Securities Purchase Agreement, the Company
has agreed to provide certain registration rights under the Securities Act of 1933, as amended, and
the rules and regulations thereunder, or any similar successor statute (collectively, the “1933
Act”), and applicable state securities laws.

NOW, THEREFORE, in consideration of the premises and the mutual covenants contained herein and
other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Company and each of the Buyers hereby agree as follows:

1. Definitions.

As used in this Agreement, the following terms shall have the following meanings:

(a) "Business Day” means any day other than Saturday, Sunday or any other day on which
commercial banks in The City of New York are authorized or required by law to remain closed.

(b) "Effective Date” means the date that the Registration Statement is first declared
effective by the SEC.

(c) "Investor” means a Buyer, any transferee or assignee thereof to whom a Buyer assigns its
rights under this Agreement and who agrees to become bound by the provisions of this Agreement in
accordance with Section 9 and any transferee or assignee thereof to whom a transferee or assignee
assigns its rights under this Agreement and who agrees to become bound by the provisions of this
Agreement in accordance with Section 9.

(d) "Person” means an individual, a limited liability company, a partnership, a joint venture,
a corporation, a trust, an unincorporated organization and governmental or any department or
agency thereof.

(e) "register,” “registered,” and “registration” refer to a registration effected by preparing
and filing one or more Registration Statements (as defined below) in compliance with the 1933 Act
and pursuant to Rule 415, and the declaration or ordering of effectiveness of such Registration
Statement(s) by the SEC.

(f) "Registrable Securities” means (i) the Common Shares, (ii) the Warrant Shares issued or
issuable upon exercise of the Warrants and (iii) any shares of capital stock issued or issuable
with respect to the Common Shares, the Warrant Shares or the Warrants as a result of any stock
split, stock dividend, recapitalization, exchange or similar event or otherwise, without regard to
any limitations on exercise of the Warrants.

(g) "Registration Statement” means a registration statement or registration statements of the
Company filed under the 1933 Act covering the Registrable Securities.

(h) "Rule 415” means Rule 415 under the 1933 Act or any successor rule providing for offering
securities on a continuous or delayed basis.

(i) "SEC” means the United States Securities and Exchange Commission.

Capitalized terms used herein and not otherwise defined herein shall have the respective
meanings set forth in the Securities Purchase Agreement.

2. Registration.

(a) Mandatory Registration. The Company shall prepare, and, as soon as practicable
but in no event later than 30 days after the Closing Date (as defined in the Securities Purchase
Agreement) (the “Filing Deadline”), file with the SEC a Registration Statement on Form S-3 covering
the resale of all of the Registrable Securities (the date of such filing, the “Filing Date”). In
the event that Form S-3 is unavailable for such a registration, the Company shall use such other
form as is available for such a registration, subject to the provisions of Section 2(d). The
Registration Statement prepared pursuant hereto shall register for resale that number of shares of
Common Stock equal to the number of Registrable Securities as of the trading day immediately
preceding the date the Registration Statement is initially filed with the SEC, subject to
adjustment as provided in Section 2(e), and shall contain the “Selling Securityholders” section and
“Plan of Distribution” attached hereto as Annex I. The Company shall use its best efforts
to have the Registration Statement declared effective by the SEC as soon as practicable, but in no
event later than the date which is 90 days after the Filing Date but no later than 90 days after
the Filing Deadline (the “Effectiveness Deadline”).

(b) Allocation of Registrable Securities. The initial number of Registrable
Securities included in any Registration Statement and each increase in the number of Registrable
Securities included therein shall be allocated pro rata among the Investors based on the number of
Registrable Securities held by each Investor at the time the Registration Statement covering such
initial number of Registrable Securities or increase thereof is declared effective by the SEC. In
the event that an Investor sells or otherwise transfers any of such Investor’s Registrable
Securities, each transferee shall be allocated a pro rata portion of the then remaining number of
Registrable Securities included in such Registration Statement for such transferor. Any shares of
Common Stock included in a Registration Statement and which remain allocated to any Person which
ceases to hold any Registrable Securities covered by such Registration Statement shall be allocated
to the remaining Investors, pro rata based on the number of Registrable Securities then held by
such Investors which are covered by such Registration Statement. In no event shall the Company
include any securities other than Registrable Securities on any Registration Statement without the
prior written consent of Buyers holding at least a majority of the Registrable Securities, except
that the Company shall be permitted to register on a Registration Statement the resale of shares of
Common Stock and warrant shares that may be issued in the future pursuant to a purchase right held
by PointSource Technologies LLC and its affiliates (“PointSource”) in an amount equal to
approximately 1.66% of the number of Common Shares and Warrant Shares sold pursuant to the
Securities Purchase Agreement.

(c) Legal Counsel. Subject to Section 5 hereof, the Buyers holding at least a
majority of the Registrable Securities shall have the right to select one legal counsel to review
and oversee any registration pursuant to this Section 2 (“Legal Counsel”). The Company and Legal
Counsel shall reasonably cooperate with each other in performing the Company’s obligations under
this Agreement.

(d) Ineligibility for Form S-3. In the event that Form S-3 is not available for the
registration of the resale of Registrable Securities hereunder, the Company shall (i) register the
resale of the Registrable Securities on another appropriate form reasonably acceptable to the
holders of at least a majority of the Registrable Securities and (ii) undertake to register the
Registrable Securities on Form S-3 as soon as such form is available, provided that the Company
shall maintain the effectiveness of the Registration Statement then in effect until such time as a
Registration Statement on Form S-3 covering the Registrable Securities has been declared effective
by the SEC.

(e) Sufficient Number of Shares Registered. In the event the number of shares
available under a Registration Statement filed pursuant to Section 2(a) is insufficient to cover
all of the Registrable Securities required to be covered by such Registration Statement or an
Investor’s allocated portion of the Registrable Securities pursuant to Section 2(b), the Company
shall amend the applicable Registration Statement, or file a new Registration Statement (on the
short form available therefor, if applicable), or both, so as to cover at least 100% of the number
of such Registrable Securities as of the trading day immediately preceding the date of the filing
of such amendment or new Registration Statement, in each case, as soon as practicable, but in any
event not later than fifteen (15) days after the Company becomes aware of the necessity therefor.
The Company shall use its best efforts to cause such amendment and/or new Registration Statement to
become effective as soon as practicable following the filing thereof. For purposes of the
foregoing provision, the number of shares available under a Registration Statement shall be deemed
“insufficient to cover all of the Registrable Securities” if at any time the number of shares of
Common Stock available for resale under such Registration Statement is less than the number of
Registrable Securities. The calculation set forth in the foregoing sentence shall be made without
regard to any limitations on the exercise of the Warrants and such calculation shall assume that
the Warrants are then exercisable into shares of Common Stock.

(f) Effect of Failure to File and Obtain and Maintain Effectiveness of Registration
Statement. If (i) a Registration Statement covering all the Registrable Securities required to
be covered thereby and required to be filed by the Company pursuant to this Agreement is (A) not
filed with the SEC on or before the Filing Deadline (a “Filing Failure"), or (B) not declared
effective by the SEC on or before (x) in the event that the Registration Statement is not subject
to a full review by the SEC, the Effectiveness Deadline, or (y) in the event that the Registration
Statement is subject to a full review by the SEC, then 120 days after Closing Date (an
“Effectiveness Failure") or (ii) on any day after the Effective Date sales of all the Registrable
Securities required to be included on such Registration Statement cannot be made (other than during
an Allowable Grace Period (as defined in Section 3(r)) pursuant to such Registration Statement
(including, without limitation, because of a failure to keep such Registration Statement effective,
to disclose such information as is necessary for sales to be made pursuant to such Registration
Statement or to register sufficient shares of Common Stock) (a “Maintenance Failure"), then, as
partial relief for the damages to any holder by reason of any such delay in or reduction of its
ability to sell the underlying shares of Common Stock (which remedy shall not be exclusive of any
other remedies available at law or in equity), the Company shall pay to each holder of Registrable
Securities relating to such Registration Statement: for each day of a Filing Failure, an
Effectiveness Failure and a Maintenance Failure, an amount in cash equal to one-thirtieth
(1/30th) of the product of (i) the aggregate Purchase Price (as such term is defined in
the Securities Purchase Agreement) of such Investor’s Registrable Securities included in such
Registration Statement multiplied by (ii) 0.01. Payment of such fee shall be due at the end of
each 30 day period after a Filing Failure, Effectiveness Failure or Maintenance Failure. In the
event the Company fails to make any payments pursuant to this Section 2(f) when due, such payments
shall bear interest at the rate of 1.5% per month (prorated for partial months) until paid in full.

3. Related Obligations.

At such time as the Company is obligated to file a Registration Statement with the SEC
pursuant to Section 2(a), 2(d) or 2(e), the Company will use its reasonable best efforts to effect
the registration of the Registrable Securities in accordance with the intended method of
disposition thereof and, pursuant thereto, the Company shall have the following obligations:

(a) The Company shall submit to the SEC, within three (3) Business Days after the Company
learns that no review of a particular Registration Statement will be made by the staff of the SEC
or that the staff of the SEC has no further comments on a particular Registration Statement, as the
case may be, a request for acceleration of effectiveness of such Registration Statement to a time
and date not later than 48 hours after the submission of such request. The Company shall keep each
Registration Statement effective pursuant to Rule 415 at all times until the earlier of (i) the
date as of which the Investors may sell all of the Registrable Securities covered by such
Registration Statement without restriction pursuant to Rule 144(k) (or successor thereto)
promulgated under the 1933 Act or (ii) the date on which the Investors shall have sold all the
Registrable Securities covered by such Registration Statement (the “Registration Period”). The
Company shall ensure that each Registration Statement (including any amendments or supplements
thereto and prospectuses contained therein) shall not contain any untrue statement of a material
fact or omit to state a material fact required to be stated therein, or necessary to make the
statements therein (in the case of prospectuses, in the light of the circumstances in which they
were made) not misleading.

(b) The Company shall prepare and file with the SEC such amendments (including post-effective
amendments) and supplements to a Registration Statement and the prospectus used in connection with
such Registration Statement, which prospectus is to be filed pursuant to Rule 424 promulgated under
the 1933 Act, as may be necessary to keep such Registration Statement effective at all times during
the Registration Period, and, during such period, comply with the provisions of the 1933 Act with
respect to the disposition of all Registrable Securities of the Company covered by such
Registration Statement until such time as all of such Registrable Securities shall have been
disposed of in accordance with the intended methods of disposition by the seller or sellers thereof
as set forth in such Registration Statement. In the case of amendments and supplements to a
Registration Statement which are required to be filed pursuant to this Agreement (including
pursuant to this Section 3(b)) by reason of the Company filing a report on Form 10-K, Form 10-Q or
Form 8-K or any analogous report under the Securities Exchange Act of 1934, as amended (the “1934
Act”), the Company shall have incorporated such report by reference into such Registration
Statement, if applicable, or shall file such amendments or supplements with the SEC on the same day
on which the 1934 Act report is filed which created the requirement for the Company to amend or
supplement such Registration Statement.

(c) The Company shall (A) permit Legal Counsel to review and comment upon (i) a Registration
Statement at least five (5) Business Days prior to its filing with the SEC and (ii) all amendments
and supplements to all Registration Statements (except for Annual Reports on Form 10-K, Quarterly
Reports on Form 10-Q and Current Reports on Form 8-K and any similar or successor reports) within a
reasonable number of days prior to their filing with the SEC, and (B) not file any Registration
Statement or amendment or supplement thereto in a form to which Legal Counsel reasonably objects.
The Company shall not submit a request for acceleration of the effectiveness of a Registration
Statement or any amendment or supplement thereto without the prior approval of Legal Counsel, which
consent shall not be unreasonably withheld. The Company shall furnish to Legal Counsel, without
charge, (i) copies of any correspondence from the SEC or the staff of the SEC to the Company or its
representatives relating to any Registration Statement, (ii) promptly after the same is prepared
and filed with the SEC, one copy of any Registration Statement and any amendment(s) thereto,
including financial statements and schedules, all documents incorporated therein by reference, if
requested by an Investor and not otherwise available on the EDGAR system, and all exhibits and
(iii) upon the effectiveness of any Registration Statement, one copy of the prospectus included in
such Registration Statement and all amendments and supplements thereto. The Company shall
reasonably cooperate with Legal Counsel in performing the Company’s obligations pursuant to this
Section 3.

(d) The Company shall furnish to each Investor whose Registrable Securities are included in
any Registration Statement, without charge, (i) promptly after the same is prepared and filed with
the SEC, at least one copy of such Registration Statement and any amendment(s) thereto, including
financial statements and schedules, all documents incorporated therein by reference, if requested
by an Investor and not otherwise available on the EDGAR system, all exhibits and each preliminary
prospectus, (ii) upon the effectiveness of any Registration Statement, ten (10) copies of the
prospectus included in such Registration Statement and all amendments and supplements thereto (or
such other number of copies as such Investor may reasonably request) and (iii) such other
documents, including copies of any preliminary or final prospectus, as such Investor may reasonably
request from time to time in order to facilitate the disposition of the Registrable Securities
owned by such Investor.

(e) The Company shall use its reasonable best efforts to (i) register and qualify, unless an
exemption from registration and qualification applies, the resale by Investors of the Registrable
Securities covered by a Registration Statement under such other securities or “blue sky” laws of
all applicable jurisdictions in the United States, (ii) prepare and file in those jurisdictions
such amendments (including post-effective amendments) and supplements to such registrations and
qualifications as may be necessary to maintain the effectiveness thereof during the Registration
Period, (iii) take such other actions as may be necessary to maintain such registrations and
qualifications in effect at all times during the Registration Period, and (iv) take all other
actions reasonably necessary or advisable to qualify the Registrable Securities for sale in such
jurisdictions; provided, however, that the Company shall not be required in connection therewith or
as a condition thereto to (x) qualify to do business in any jurisdiction where it would not
otherwise be required to qualify but for this Section 3(e), (y) subject itself to general taxation
in any such jurisdiction, or (z) file a general consent to service of process in any such
jurisdiction. The Company shall promptly notify Legal Counsel and each Investor who holds
Registrable Securities of the receipt by the Company of any notification with respect to the
suspension of the registration or qualification of any of the Registrable Securities for sale under
the securities or “blue sky” laws of any jurisdiction in the United States or its receipt of actual
notice of the initiation or threatening of any proceeding for such purpose.

(f) The Company shall notify Legal Counsel and each Investor in writing of the happening of
any event, as promptly as practicable after becoming aware of such event, as a result of which the
prospectus included in a Registration Statement, as then in effect, includes an untrue statement of
a material fact or omission to state a material fact required to be stated therein or necessary to
make the statements therein, in the light of the circumstances under which they were made, not
misleading (provided that in no event shall such notice contain any material, nonpublic
information), and, subject to Section 3(r), promptly prepare a supplement or amendment to such
Registration Statement to correct such untrue statement or omission, and deliver ten (10) copies of
such supplement or amendment to Legal Counsel and each Investor (or such other number of copies as
Legal Counsel or such Investor may reasonably request). The Company shall also promptly notify
Legal Counsel and each Investor in writing (i) when a prospectus or any prospectus supplement or
post-effective amendment has been filed, and when a Registration Statement or any post-effective
amendment has become effective (notification of such effectiveness shall be delivered to Legal
Counsel and each Investor by facsimile on the same day of such effectiveness and by overnight
mail), (ii) of any request by the SEC for amendments or supplements to a Registration Statement or
related prospectus or related information, and (iii) of the Company’s reasonable determination that
a post-effective amendment to a Registration Statement would be appropriate.

(g) The Company shall use its reasonable best efforts to prevent the issuance of any stop
order or other suspension of effectiveness of a Registration Statement, or the suspension of the
qualification of any of the Registrable Securities for sale in any jurisdiction and, if such an
order or suspension is issued, to obtain the withdrawal of such order or suspension at the earliest
possible moment and to notify Legal Counsel and each Investor who holds Registrable Securities
being sold of the issuance of such order and the resolution thereof or its receipt of actual notice
of the initiation or threat of any proceeding for such purpose.

(h) If any Investor is required under applicable securities law to be described in the
Registration Statement as an underwriter, at the reasonable request of such Investor, the Company
shall furnish to such Investor, on the date of the effectiveness of the Registration Statement and
thereafter from time to time on such dates as an Investor may reasonably request (i) a letter,
dated such date, from the Company’s independent certified public accountants in form and substance
as is customarily given by independent certified public accountants to underwriters in an
underwritten public offering, addressed to the Investors, and (ii) an opinion, dated as of such
date, of counsel representing the Company for purposes of such Registration Statement, in form,
scope and substance as is customarily given in an underwritten public offering, addressed to the
Investors.

(i) Upon the written request of any Investor in connection with any Investor’s due diligence
requirements, if any, the Company shall make available for inspection by (i) any Investor, (ii)
Legal Counsel and (iii) one firm of accountants or other agents retained by the Investors
(collectively, the “Inspectors”), all pertinent financial and other records, and pertinent
corporate documents and properties of the Company (collectively, the “Records”), as shall be
reasonably deemed necessary by each Inspector, and cause the Company’s officers, directors and
employees to supply all information which any Inspector may reasonably request; provided, however,
that each Inspector shall agree in writing to hold in strict confidence and shall not make any
disclosure (except to an Investor) or use of any Record or other information which the Company
determines in good faith to be confidential, and of which determination the Inspectors are so
notified, unless (a) the disclosure of such Records is necessary to avoid or correct a misstatement
or omission in any Registration Statement or is otherwise required under the 1933 Act, (b) the
release of such Records is ordered pursuant to a final, non-appealable subpoena or order from a
court or government body of competent jurisdiction, or (c) the information in such Records has been
made generally available to the public other than by disclosure in violation of this or any other
agreement of which the Inspector has knowledge. Each Investor agrees that it shall, upon learning
that disclosure of such Records is required or is sought in or by a court or governmental body of
competent jurisdiction or through other means, give prompt notice to the Company and allow the
Company, at its expense, to undertake appropriate action to prevent disclosure of, or to obtain a
protective order for, the Records deemed confidential. Nothing herein (or in any other
confidentiality agreement between the Company and any Investor) shall be deemed to limit the
Investors’ ability to sell Registrable Securities in a manner which is otherwise consistent with
applicable laws and regulations.

(j) The Company shall hold in confidence and not make any disclosure of information concerning
an Investor provided to the Company unless (i) disclosure of such information is necessary to
comply with federal or state securities laws, (ii) the disclosure of such information is necessary
to avoid or correct a misstatement or omission in any Registration Statement, (iii) the release of
such information is ordered pursuant to a subpoena or other final, non-appealable order from a
court or governmental body of competent jurisdiction, or (iv) such information has been made
generally available to the public other than by disclosure in violation of this Agreement or any
other agreement. The Company agrees that it shall, upon learning that disclosure of such
information concerning an Investor is sought in or by a court or governmental body of competent
jurisdiction or through other means, give prompt written notice to such Investor and allow such
Investor, at the Investor’s expense, to undertake appropriate action to prevent disclosure of, or
to obtain a protective order for, such information.

(k) The Company shall use its reasonable best efforts either to (i) cause all the Registrable
Securities covered by a Registration Statement to be listed on each securities exchange on which
securities of the same class or series issued by the Company are then listed, if any, if the
listing of such Registrable Securities is then permitted under the rules of such exchange, or (ii)
secure designation and quotation of all the Registrable Securities covered by a Registration
Statement on The NASDAQ Capital Market and, without limiting the generality of the foregoing, to
use its reasonable best efforts to arrange for at least two market makers to register with the
National Association of Securities Dealers, Inc. (“NASD”) as such with respect to such Registrable
Securities. The Company shall pay all fees and expenses in connection with satisfying its
obligation under this Section 3(k).

(l) The Company shall cooperate with the Investors who hold Registrable Securities being
offered and, to the extent applicable, facilitate the timely preparation and delivery of
certificates (not bearing any restrictive legend) representing the Registrable Securities to be
offered pursuant to a Registration Statement and enable such certificates to be in such
denominations or amounts, as the case may be, as the Investors may reasonably request and
registered in such names as the Investors may request.

(m) If requested by an Investor, the Company shall (i) as soon as practicable incorporate in a
prospectus supplement or post-effective amendment such information as an Investor reasonably
requests to be included therein relating to the sale and distribution of Registrable Securities,
including, without limitation, information with respect to the number of Registrable Securities
being offered or sold, the purchase price being paid therefor and any other terms of the offering
of the Registrable Securities to be sold in such offering; (ii) as soon as practicable make all
required filings of such prospectus supplement or post-effective amendment after being notified of
the matters to be incorporated in such prospectus supplement or post-effective amendment; and (iii)
as soon as practicable, supplement or make amendments to any Registration Statement if reasonably
requested by an Investor holding any Registrable Securities.

(n) The Company shall use its reasonable best efforts to cause the Registrable Securities
covered by a Registration Statement to be registered with or approved by such other governmental
agencies or authorities as may be necessary to consummate the disposition of such Registrable
Securities.

(o) [Intentionally Omitted].

(p) The Company shall otherwise use its reasonable best efforts to comply with all applicable
rules and regulations of the SEC in connection with any registration hereunder.

(q) Within two (2) Business Days after a Registration Statement which covers Registrable
Securities is ordered effective by the SEC, the Company shall deliver, and shall cause legal
counsel for the Company to deliver, to the transfer agent for such Registrable Securities (with
copies to the Investors whose Registrable Securities are included in such Registration Statement)
confirmation that such Registration Statement has been declared effective by the SEC in the form
attached hereto as Exhibit A.

(r) Notwithstanding anything to the contrary herein, at any time after the Registration
Statement has been declared effective by the SEC, the Company may delay the disclosure of material,
non-public information concerning the Company the disclosure of which at the time is not, in the
good faith opinion of the Board of Directors of the Company and its counsel, in the best interest
of the Company and, in the opinion of counsel to the Company, otherwise required (a “Grace
Period”); provided, that the Company shall promptly (i) notify the Investors in writing of the
existence of a Grace Period in conformity with the provisions of this Section 3(r)(provided that in
each notice the Company will not disclose the content of such material, non-public information to
the Investors) and the date on which the Grace Period will begin, and (ii) notify the Investors in
writing of the date on which the Grace Period ends; and, provided further, that no Grace Period
shall exceed ten (10) consecutive days and during any three hundred sixty five (365) day period
such Grace Periods shall not exceed an aggregate of thirty (30) days and the first day of any Grace
Period must be at least two (2) trading days after the last day of any prior Grace Period (each, an
"Allowable Grace Period”). For purposes of determining the length of a Grace Period above, the
Grace Period shall begin on and include the date the Investors receive the notice referred to in
clause (i) and shall end on and include the later of the date the Investors receive the notice
referred to in clause (ii) and the date referred to in such notice. The provisions of Section 3(g)
hereof shall not be applicable during the period of any Allowable Grace Period. Upon expiration of
the Grace Period, the Company shall again be bound by the first sentence of Section 3(f) with
respect to the information giving rise thereto unless such material, non-public information is no
longer applicable. Notwithstanding anything to the contrary, the Company shall cause its transfer
agent to deliver unlegended shares of Common Stock to a transferee of an Investor in accordance
with the terms of the Securities Purchase Agreement in connection with any sale of Registrable
Securities with respect to which an Investor has entered into a contract for sale, and delivered a
copy of the prospectus included as part of the applicable Registration Statement, prior to the
Investor’s receipt of the notice of a Grace Period and for which the Investor has not yet settled.

4. Obligations Of The Investors.

(a) At least five (5) Business Days prior to the first anticipated filing date of a
Registration Statement, the Company shall notify each Investor in writing of the information the
Company requires from each such Investor if such Investor elects to have any of such Investor’s
Registrable Securities included in such Registration Statement. It shall be a condition precedent
to the obligations of the Company to complete the registration pursuant to this Agreement with
respect to the Registrable Securities of a particular Investor that such Investor shall furnish to
the Company such information regarding itself, the Registrable Securities held by it and the
intended method of disposition of the Registrable Securities held by it as shall be reasonably
required to effect the effectiveness of the registration of such Registrable Securities and shall
execute such documents in connection with such registration as the Company may reasonably request.

(b) Each Investor, by such Investor’s acceptance of the Registrable Securities, agrees to
cooperate with the Company as reasonably requested by the Company in connection with the
preparation and filing of any Registration Statement hereunder, unless such Investor has notified
the Company in writing of such Investor’s election to exclude all of such Investor’s Registrable
Securities from such Registration Statement.

(c) Each Investor agrees that, upon receipt of any notice from the Company of the happening of
any event of the kind described in Section 3(g) or the first sentence of 3(f), such Investor will
immediately discontinue disposition of Registrable Securities pursuant to any Registration
Statement(s) covering such Registrable Securities until such Investor’s receipt of the copies of
the supplemented or amended prospectus contemplated by Section 3(g) or the first sentence of 3(f)
or receipt of notice that no supplement or amendment is required. Notwithstanding anything to the
contrary, the Company shall cause its transfer agent to deliver unlegended shares of Common Stock
to a transferee of an Investor in accordance with the terms of the Securities Purchase Agreement in
connection with any sale of Registrable Securities with respect to which an Investor has entered
into a contract for sale prior to the Investor’s receipt of a notice from the Company of the
happening of any event of the kind described in Section 3(g) or the first sentence of 3(f) and for
which the Investor has not yet settled.

(d) Each Investor covenants and agrees that it will comply with any applicable prospectus
delivery requirements of the 1933 Act as applicable to it in connection with sales of Registrable
Securities pursuant to a Registration Statement.

5. Expenses of Registration.

All reasonable expenses, other than underwriting discounts and commissions, incurred in
connection with registrations, filings or qualifications pursuant to Sections 2 and 3, including,
without limitation, all registration, listing and qualifications fees, printers and accounting
fees, and fees and disbursements of counsel for the Company shall be paid by the Company. All
underwriting discounts and selling commissions applicable to the sale of the Registrable Securities
shall be paid by the Investors; provided, however, that the Company shall reimburse
the Investors for the fees and disbursements of Legal Counsel in connection with registration,
filing or qualification pursuant to Sections 2 and 3 of this Agreement, which amount shall be
limited to $10,000.

6. Indemnification.

In the event any Registrable Securities are included in a Registration Statement under this
Agreement:

(a) To the fullest extent permitted by law, the Company will, and hereby does, indemnify, hold
harmless and defend each Investor, the directors, officers, partners, members, employees, agents,
representatives of, and each Person, if any, who controls any Investor within the meaning of the
1933 Act or the 1934 Act (each, an “Indemnified Person”), against any losses, claims, damages,
liabilities, judgments, fines, penalties, charges, costs, reasonable attorneys’ fees, amounts paid
in settlement or expenses, joint or several (collectively, “Claims”), incurred in investigating,
preparing or defending any action, claim, suit, inquiry, proceeding, investigation or appeal taken
from the foregoing by or before any court or governmental, administrative or other regulatory
agency, body or the SEC, whether pending or threatened, whether or not an indemnified party is or
may be a party thereto (“Indemnified Damages”), to which any of them may become subject insofar as
such Claims (or actions or proceedings, whether commenced or threatened, in respect thereof) arise
out of or are based upon: (i) any untrue statement or alleged untrue statement of a material fact
in a Registration Statement or any post-effective amendment thereto or in any filing made in
connection with the qualification of the offering under the securities or other “blue sky” laws of
any jurisdiction in which Registrable Securities are offered (“Blue Sky Filing”), or the omission
or alleged omission to state a material fact required to be stated therein or necessary to make the
statements therein not misleading, (ii) any untrue statement or alleged untrue statement of a
material fact contained in any preliminary prospectus if used prior to the effective date of such
Registration Statement, or contained in the final prospectus (as amended or supplemented, if the
Company files any amendment thereof or supplement thereto with the SEC) or the omission or alleged
omission to state therein any material fact necessary to make the statements made therein, in the
light of the circumstances under which the statements therein were made, not misleading, (iii) any
violation or alleged violation by the Company of the 1933 Act, the 1934 Act, any other law,
including, without limitation, any state securities law, or any rule or regulation thereunder
relating to the offer or sale of the Registrable Securities pursuant to a Registration Statement or
(iv) any material violation of this Agreement (the matters in the foregoing clauses (i) through
(iv) being, collectively, “Violations”). Subject to Section 6(c), the Company shall reimburse the
Indemnified Persons, promptly as such expenses are incurred and are due and payable, for any legal
fees or other reasonable expenses incurred by them in connection with investigating or defending
any such Claim. Notwithstanding anything to the contrary contained herein, the indemnification
agreement contained in this Section 6(a): (i) shall not apply to a Claim by an Indemnified Person
arising out of or based upon a Violation which occurs in reliance upon and in conformity with
information furnished in writing to the Company by such Indemnified Person for such Indemnified
Person expressly for use in connection with the preparation of the Registration Statement or any
such amendment thereof or supplement thereto, if such prospectus was timely made available by the
Company pursuant to Section 3(d); (ii) with respect to any preliminary prospectus, shall not inure
to the benefit of any such Person from whom the Person asserting any such Claim purchased the
Registrable Securities that are the subject thereof (or to the benefit of any Person controlling
such Person) if the untrue statement or omission of material fact contained in the preliminary
prospectus was corrected in the prospectus, as then amended or supplemented, if such prospectus was
timely made available by the Company pursuant to Section 3(d), and the Indemnified Person was
promptly advised in writing not to use the incorrect prospectus prior to the use giving rise to a
violation and such Indemnified Person, notwithstanding such advice, used it or failed to deliver
the correct prospectus as required by the 1933 Act and such correct prospectus was timely made
available pursuant to Section 3(d); (iii) shall not be available to the extent such Claim is based
on a failure of the Investor to deliver or to cause to be delivered the prospectus made available
by the Company, including a corrected prospectus, if such prospectus or corrected prospectus was
timely made available by the Company pursuant to Section 3(d); and (iv) shall not apply to amounts
paid in settlement of any Claim if such settlement is effected without the prior written consent of
the Company, which consent shall not be unreasonably withheld or delayed. Such indemnity shall
remain in full force and effect regardless of any investigation made by or on behalf of the
Indemnified Person and shall survive the transfer of the Registrable Securities by the Investors
pursuant to Section 9.

(b) In connection with any Registration Statement in which an Investor is participating, each
such Investor agrees to severally and not jointly indemnify, hold harmless and defend, to the same
extent and in the same manner as is set forth in Section 6(a), the Company, each of its directors,
each of its officers who signs the Registration Statement and each Person, if any, who controls the
Company within the meaning of the 1933 Act or the 1934 Act (each, an “Indemnified Party”), against
any Claim or Indemnified Damages to which any of them may become subject, under the 1933 Act, the
1934 Act or otherwise, insofar as such Claim or Indemnified Damages arise out of or are based upon
any Violation, in each case to the extent, and only to the extent, that such Violation occurs in
reliance upon and in conformity with written information furnished to the Company by such Investor
expressly for use in connection with such Registration Statement; and, subject to Section 6(c),
such Investor will reimburse any legal or other expenses reasonably incurred by an Indemnified
Party in connection with investigating or defending any such Claim; provided, however, that the
indemnity agreement contained in this Section 6(b) and the agreement with respect to contribution
contained in Section 7 shall not apply to amounts paid in settlement of any Claim if such
settlement is effected without the prior written consent of such Investor, which consent shall not
be unreasonably withheld or delayed; provided, further, however, that an Investor shall be liable
under this Section 6(b) for only that amount of a Claim or Indemnified Damages as does not exceed
the net proceeds to such Investor as a result of the sale of Registrable Securities pursuant to
such Registration Statement. Such indemnity shall remain in full force and effect regardless of
any investigation made by or on behalf of such Indemnified Party and shall survive the transfer of
the Registrable Securities by the Investors pursuant to Section 9. Notwithstanding anything to the
contrary contained herein, the indemnification agreement contained in this Section 6(b) with
respect to any preliminary prospectus shall not inure to the benefit of any Indemnified Party if
the untrue statement or omission of material fact contained in the preliminary prospectus was
corrected on a timely basis in the prospectus, as then amended or supplemented.

(c) Promptly after receipt by an Indemnified Person or Indemnified Party under this Section 6
of notice of the commencement of any action or proceeding (including any governmental action or
proceeding) involving a Claim, such Indemnified Person or Indemnified Party shall, if a Claim in
respect thereof is to be made against any indemnifying party under this Section 6, deliver to the
indemnifying party a written notice of the commencement thereof, and the indemnifying party shall
have the right to participate in, and, to the extent the indemnifying party so desires, jointly
with any other indemnifying party similarly noticed, to assume control of the defense thereof with
counsel mutually satisfactory to the indemnifying party and the Indemnified Person or the
Indemnified Party, as the case may be; provided, however, that an Indemnified Person or Indemnified
Party shall have the right to retain its own counsel with the fees and expenses of not more than
one counsel for such Indemnified Person or Indemnified Party to be paid by the indemnifying party,
if, in the reasonable opinion of the Indemnified Person or the Indemnified Party, as the case may
be, the representation by such counsel of the Indemnified Person or Indemnified Party and the
indemnifying party would be inappropriate due to actual or potential differing interests between
such Indemnified Person or Indemnified Party and any other party represented by such counsel in
such proceeding. In the case of an Indemnified Person, legal counsel referred to in the
immediately preceding sentence shall be selected by the Investors holding at least a majority in
interest of the Registrable Securities included in the Registration Statement to which the Claim
relates. The Indemnified Party or Indemnified Person shall cooperate fully with the indemnifying
party in connection with any negotiation or defense of any such action or Claim by the indemnifying
party and shall furnish to the indemnifying party all information reasonably available to the
Indemnified Party or Indemnified Person which relates to such action or Claim. The indemnifying
party shall keep the Indemnified Party or Indemnified Person fully apprized at all times as to the
status of the defense or any settlement negotiations with respect thereto. No indemnifying party
shall be liable for any settlement of any action, claim or proceeding effected without its prior
written consent, provided, however, that the indemnifying party shall not unreasonably withhold,
delay or condition its consent. No indemnifying party shall, without the prior written consent of
the Indemnified Party or Indemnified Person, consent to entry of any judgment or enter into any
settlement or other compromise which does not include as an unconditional term thereof the giving
by the claimant or plaintiff to such Indemnified Party or Indemnified Person of a release from all
liability in respect to such Claim or litigation. Following indemnification as provided for
hereunder, the indemnifying party shall be subrogated to all rights of the Indemnified Party or
Indemnified Person with respect to all third parties, firms or corporations relating to the matter
for which indemnification has been made. The failure to deliver written notice to the indemnifying
party within a reasonable time of the commencement of any such action shall not relieve such
indemnifying party of any liability to the Indemnified Person or Indemnified Party under this
Section 6, except to the extent that the indemnifying party is prejudiced in its ability to defend
such action.

(d) The indemnification required by this Section 6 shall be made by periodic payments of the
amount thereof during the course of the investigation or defense, as and when bills are received or
Indemnified Damages are incurred.

(e) The indemnity agreements contained herein shall be in addition to (i) any cause of action
or similar right of the Indemnified Party or Indemnified Person against the indemnifying party or
others, and (ii) any liabilities the indemnifying party may be subject to pursuant to the law.

7. Contribution.

To the extent any indemnification by an indemnifying party is prohibited or limited by law,
the indemnifying party agrees to make the maximum contribution with respect to any amounts for
which it would otherwise be liable under Section 6 to the fullest extent permitted by law;
provided, however, that: (i) no Person involved in the sale of Registrable Securities which Person
is guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933 Act) in
connection with such sale shall be entitled to contribution from any Person involved in such sale
of Registrable Securities who was not guilty of fraudulent misrepresentation; and (ii) contribution
by any seller of Registrable Securities shall be limited in amount to the net amount of proceeds
received by such seller from the sale of such Registrable Securities pursuant to such Registration
Statement.

8. Reports Under The 1934 Act.

With a view to making available to the Investors the benefits of Rule 144 promulgated under
the 1933 Act or any other similar rule or regulation of the SEC that may at any time permit the
Investors to sell securities of the Company to the public without registration (“Rule 144”), the
Company agrees to:

(a) make and keep public information available, as those terms are understood and defined in
Rule 144;

(b) file with the SEC in a timely manner all reports and other documents required of the
Company under the 1933 Act and the 1934 Act so long as the Company remains subject to such
requirements and the filing of such reports and other documents is required for the applicable
provisions of Rule 144; and

(c) furnish to each Investor so long as such Investor owns Registrable Securities, promptly
upon request, (i) a written statement by the Company, if true, that it has complied with the
reporting requirements of Rule 144, the 1933 Act and the 1934 Act, (ii) a copy of the most recent
annual or quarterly report of the Company and such other reports and documents so filed by the
Company, and (iii) such other information as may be reasonably requested to permit the Investors to
sell such securities pursuant to Rule 144 without registration.

9. Assignment of Registration Rights.

The rights under this Agreement shall be automatically assignable by the Investors to any
transferee of all or any portion of such Investor’s Registrable Securities if: (i) the Investor
agrees in writing with the transferee or assignee to assign such rights, and a copy of such
agreement is furnished to the Company within a reasonable time after such assignment; (ii) the
Company is, within a reasonable time after such transfer or assignment, furnished with written
notice of (a) the name and address of such transferee or assignee, and (b) the securities with
respect to which such registration rights are being transferred or assigned; (iii) immediately
following such transfer or assignment the further disposition of such securities by the transferee
or assignee is restricted under the 1933 Act and applicable state securities laws; (iv) at or
before the time the Company receives the written notice contemplated by clause (ii) of this
sentence the transferee or assignee agrees in writing with the Company to be bound by all of the
provisions contained herein; and (v) such transfer shall have been made in accordance with the
applicable requirements of the Securities Purchase Agreement.

10. Amendment of Registration Rights.

Provisions of this Agreement may be amended and the observance thereof may be waived (either
generally or in a particular instance and either retroactively or prospectively), only with the
written consent of the Company and Investors who then hold at least a majority of the Registrable
Securities. Any amendment or waiver effected in accordance with this Section 10 shall be binding
upon each Investor and the Company. No such amendment shall be effective to the extent that it
applies to less than all of the holders of the Registrable Securities. No consideration shall be
offered or paid to any Person to amend or consent to a waiver or modification of any provision of
any of this Agreement unless the same consideration also is offered to all of the parties to this
Agreement.

11. Miscellaneous.

(a) A Person is deemed to be a holder of Registrable Securities whenever such Person owns or
is deemed to own of record such Registrable Securities. If the Company receives conflicting
instructions, notices or elections from two or more Persons with respect to the same Registrable
Securities, the Company shall act upon the basis of instructions, notice or election received from
the such record owner of such Registrable Securities.

(b) Any notices, consents, waivers or other communications required or permitted to be given
under the terms of this Agreement must be in writing and will be deemed to have been delivered:
(i) upon receipt, when delivered personally; (ii) upon receipt, when sent by facsimile (provided
confirmation of transmission is mechanically or electronically generated and kept on file by the
sending party); or (iii) one Business Day after deposit with a nationally recognized overnight
delivery service, in each case properly addressed to the party to receive the same. The addresses
and facsimile numbers for such communications shall be:

If to the Company:

	 	 	 
	JMAR Technologies, Inc.

10905 Technology Place

	 	

	 
	 	 
	San Diego, California 92127

	 
	 	 
	Telephone:

Facsimile:

Attention:

	 	(858) 946-6800

(858) 946-6879

Dennis Valentine, CFO

	 	 	 
	with a copy (for informational purposes only) to:

	 
	 	 
	Procopio, Cory, Hargreaves & Savitch LLP

	 
	 	 
	530 B Street, Suite 2100

San Diego, CA 92101

Telephone:

Facsimile:

Attention:

	 	

(619) 238-1900

(619) 235-0398

Joseph G. Martinez, Esq.

If to Legal Counsel:

	 	 	 
	The Baum Law Firm

	 	

	 
	 	 
	580 Second Street, Suite 102

	 
	 	 
	Encinitas, CA 92024

Telephone:

Facsimile:

Attention:

	 	

(760) 230-2300

(760) 230-2305

Mark L. Baum, Esq.

If to a Buyer, to its address and facsimile number set forth on the Schedule of Buyers attached
hereto, with copies to such Buyer’s representatives as set forth on the Schedule of Buyers, or to
such other address and/or facsimile number and/or to the attention of such other Person as the
recipient party has specified by written notice given to each other party five (5) days prior to
the effectiveness of such change. Written confirmation of receipt (A) given by the recipient of
such notice, consent, waiver or other communication, (B) mechanically or electronically generated
by the sender’s facsimile machine containing the time, date, recipient facsimile number and an
image of the first page of such transmission or (C) provided by a courier or overnight courier
service shall be rebuttable evidence of personal service, receipt by facsimile or receipt from a
nationally recognized overnight delivery service in accordance with clause (i), (ii) or (iii)
above, respectively.

(c) Failure of any party to exercise any right or remedy under this Agreement or otherwise, or
delay by a party in exercising such right or remedy, shall not operate as a waiver thereof.

(d) All questions concerning the construction, validity, enforcement and interpretation of
this Agreement shall be governed by the internal laws of the State of New York, without giving
effect to any choice of law or conflict of law provision or rule (whether of the State of New York
or any other jurisdictions) that would cause the application of the laws of any jurisdictions other
than the State of New York. Each party hereby irrevocably submits to the exclusive jurisdiction of
the state and federal courts sitting The City of New York, Borough of Manhattan, for the
adjudication of any dispute hereunder or in connection herewith or with any transaction
contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in
any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of
any such court, that such suit, action or proceeding is brought in an inconvenient forum or that
the venue of such suit, action or proceeding is improper. Each party hereby irrevocably waives
personal service of process and consents to process being served in any such suit, action or
proceeding by mailing a copy thereof to such party at the address for such notices to it under this
Agreement and agrees that such service shall constitute good and sufficient service of process and
notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve
process in any manner permitted by law. If any provision of this Agreement shall be invalid or
unenforceable in any jurisdiction, such invalidity or unenforceability shall not affect the
validity or enforceability of the remainder of this Agreement in that jurisdiction or the validity
or enforceability of any provision of this Agreement in any other jurisdiction. EACH PARTY HEREBY
IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE
ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION HEREWITH OR ARISING OUT OF THIS AGREEMENT OR
ANY TRANSACTION CONTEMPLATED HEREBY.

(e) This Agreement, the other Transaction Documents (as defined in the Securities Purchase
Agreement) and the instruments referenced herein and therein constitute the entire agreement among
the parties hereto with respect to the subject matter hereof and thereof. There are no
restrictions, promises, warranties or undertakings, other than those set forth or referred to
herein and therein. This Agreement, the other Transaction Documents and the instruments referenced
herein and therein supersede all prior agreements and understandings among the parties hereto with
respect to the subject matter hereof and thereof.

(f) Subject to the requirements of Section 9, this Agreement shall inure to the benefit of and
be binding upon the permitted successors and assigns of each of the parties hereto.

(g) The headings in this Agreement are for convenience of reference only and shall not limit
or otherwise affect the meaning hereof.

(h) This Agreement may be executed in identical counterparts, each of which shall be deemed an
original but all of which shall constitute one and the same agreement. This Agreement, once
executed by a party, may be delivered to the other party hereto by facsimile transmission of a copy
of this Agreement bearing the signature of the party so delivering this Agreement.

(i) Each party shall do and perform, or cause to be done and performed, all such further acts
and things, and shall execute and deliver all such other agreements, certificates, instruments and
documents, as any other party may reasonably request in order to carry out the intent and
accomplish the purposes of this Agreement and the consummation of the transactions contemplated
hereby.

(j) All consents and other determinations required to be made by the Investors pursuant to
this Agreement shall be made, unless otherwise specified in this Agreement, by Investors holding at
least a majority of the Registrable Securities, determined as if all of the Warrants held by
Investors then outstanding have been exercised for Registrable Securities without regard to any
limitations on exercise of the Warrants.

(k) The language used in this Agreement will be deemed to be the language chosen by the
parties to express their mutual intent and no rules of strict construction will be applied against
any party.

(l) This Agreement is intended for the benefit of the parties hereto and their respective
permitted successors and assigns, and is not for the benefit of, nor may any provision hereof be
enforced by, any other Person.

[The remainder of this page is intentionally left blank]

1

IN WITNESS WHEREOF, each Buyer
and the Company have caused their respective signature page to this Registration Rights Agreement
to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	COMPANY:

	 	

	 
	 	 
	JMAR TECHNOLOGIES, INC.

By: /s/ Ronald A. Walrod

	 	

	 

	 	

	Name: Ronald A. Walrod Title:

	 	Chief Executive Officer
	 
	 	 

2

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	NITE CAPITAL LP

By: /s/ John Prinz

	 	

	 

	 	

	Name: John Prinz Title:

	 	Manager of the General Partner
	 
	 	 

3

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	CRANSHIRE CAPITAL, L.P.

By: /s/ Lawrence A. Prosser

	 	

	 

	 	

	Name: Lawrence A. Prosser Title:

Partner

	 	CFO of Downsview Capital, Inc., the General

	 
	 	 

4

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	WHALEHAVEN CAPITAL FUND LIMITED

By: /s/ Evan Schemenauer

	 	

	 

	 	

	Name: Evan Schemenauer Title:

	 	Director
	 
	 	 

5

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	IROQUOIS MASTER FUND LTD.

By: /s/ Josh Silverman

	 	

	 

	 	

	Name: Josh Silverman Title:

	 	Authorized Signatory
	 
	 	 

6

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	HUDSON BAY FUND, L.P.

By: /s/ Yoav Roth

	 	

	 

	 	

	Name: Yoav Roth Title:

	 	Portfolio Manager
	 
	 	 

7

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	JEFFREY BENTON

By: /s/ Jeffrey Benton

	 	

	 

	 	

	Name: Jeffrey Benton Title:

	 	Individual
	 
	 	 

8

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	CAPITAL VENTURES INTERNATIONAL

By: /s/ Todd Silverberg

	 	

	 

	 	

	Name: Todd Silverberg Title:

authorized agent

	 	Secretary, Heights Capital Management, Inc., its

	 
	 	 

9

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	DOUBLE U MASTER FUND LP

By: /s/ Jonno Elliott

	 	

	 

	 	

	Name: Jonno Elliott Title:

	 	Director, Navigator Management Ltd.
	 
	 	 

10

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	MONARCH CAPITAL FUND LTD.

By: /s/ Jonno Elliott

	 	

	 

	 	

	Name: Jonno Elliott Title:

	 	Director, Navigator Management Ltd.
	 
	 	 

11

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	RONALD A. DURANDO

By: /s/ Ronald A. Durando

	 	

	 

	 	

	Name: Ronald A. Durando Title:

	 	Individual
	 
	 	 

12

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	GUSTAVE T. DOTOLI

By: /s/ Gustave T. Dotoli

	 	

	 

	 	

	Name: Gustave T. Dotoli Title:

	 	Individual
	 
	 	 

13

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	CGA RESOURCES, LLC

By: /s/ Cass Adelman

	 	

	 

	 	

	Name: Cass Adelman Title:

	 	Sole Member
	 
	 	 

14

IN WITNESS WHEREOF, each Buyer and the Company have caused their respective signature page to
this Registration Rights Agreement to be duly executed as of the date first written above.

	 	 	 
	 
	 	 
	BUYERS:

	 	

	 
	 	 
	SMITHFIELD FIDUCIARY LLC

By: /s/ Adam J. Chill

	 	

	 

	 	

	Name: Adam J. Chill Title:

	 	Authorized Signatory

15

EXHIBIT A

FORM OF NOTICE OF EFFECTIVENESS

OF REGISTRATION STATEMENT

	 	 	 
	Computershare Trust Company

	 
	 	 
	350 Indiana Street

Golden, Colorado 80401

	 	

	 
	 	 
	Attn: [________________________]

	 
	 	 
	Re:

	 	JMAR Technologies, Inc.
	
 
	 	 

Ladies and Gentlemen:

We have acted as legal counsel for JMAR Technologies, Inc., a Delaware corporation (the
"Company”), and have represented the Company in connection with that certain Securities Purchase
Agreement, dated as of December 23, 2005 (the “Securities Purchase Agreement”), entered into by and
among the Company and the buyers named therein (collectively, the “Holders”) pursuant to which the
Company issued to the Holders its shares of the Company’s Common Stock, par value $0.01 per share
(the “Common Stock”) and warrants exercisable for shares of Common Stock (the “Warrants”).
Pursuant to the Securities Purchase Agreement, the Company also has entered into a Registration
Rights Agreement with the Holders (the “Registration Rights Agreement”) pursuant to which the
Company agreed, among other things, to register the resale of the Registrable Securities (as
defined in the Registration Rights Agreement), including the shares of Common Stock issuable upon
exercise of the Warrants under the Securities Act of 1933, as amended (the “1933 Act”). In
connection with the Company’s obligations under the Registration Rights Agreement, on      
     , 2005, the Company filed a Registration Statement on Form S-3 (File No. 333-     ) (the
"Registration Statement”) with the Securities and Exchange Commission (the “SEC”) relating to the
Registrable Securities which names each of the Holders as a selling stockholder thereunder.

In connection with the foregoing, we advise you that a member of the SEC’s staff has advised
us by telephone that the SEC has entered an order declaring the Registration Statement effective
under the 1933 Act at [ENTER TIME OF EFFECTIVENESS] on [ENTER DATE OF EFFECTIVENESS] and we have no
knowledge, after telephonic inquiry of a member of the SEC’s staff, that any stop order suspending
its effectiveness has been issued or that any proceedings for that purpose are pending before, or
threatened by, the SEC and the Registrable Securities are available for resale under the 1933 Act
pursuant to the Registration Statement.

Provided you have not received written notice of the issuance of a stop order or other
suspension of effectiveness of the Registration Statement or that an event has occurred requiring
the filing of an amendment to the Registration Statement or a supplement to the Prospectus, you
need not require further letters from us to effect any future legend-free issuance or reissuance of
shares of Common Stock to the Holders as contemplated by the Company’s Irrevocable Transfer Agent
Instructions dated December 23, 2005.

	 	 	 	 	 
	CC:

	 	[LIST NAMES OF HOLDERS]
	 	Very truly yours,

[ISSUER’S COUNSEL]

By:     

	 
	 	 	 	 

16

ANNEX I

SELLING STOCKHOLDERS

The shares of common stock being offered by the selling stockholders are those previously
issued to the Selling Stockholders and those issuable to the Selling Stockholders upon exercise of
the warrants. For additional information regarding the issuances of common stock and the warrants,
see “Private Placement of Common Shares and Warrants” above. We are registering the shares of
common stock in order to permit the selling stockholders to offer the shares for resale from time
to time. Except for the ownership of the shares of common stock and the warrants, the selling
stockholders have not had any material relationship with us within the past three years.

The table below lists the selling stockholders and other information regarding the beneficial
ownership of the shares of common stock by each of the selling stockholders. The second column
lists the number of shares of common stock beneficially owned by each selling shareholder, based on
its ownership of the shares of common stock and the warrants, as of      , 2005, assuming
exercise of the warrants held by the selling stockholders on that date, without regard to any
limitations on exercise.

The third column lists the shares of common stock being offered by this prospectus by the
selling stockholders.

In accordance with the terms of registration rights agreements with the holders of the shares
of common stock and the warrants, this prospectus generally covers the resale of that number of
shares of common stock equal to the number of shares of common stock issued and the shares of
common stock issuable upon exercise of the related warrants, determined as if the outstanding
warrants were exercised, as applicable, in full, in each case, as of the trading day immediately
preceding the date this registration statement was initially filed with the SEC. The fourth column
assumes the sale of all of the shares offered by the selling stockholders pursuant to this
prospectus.

Under the terms of the warrants, a selling shareholder may not exercise the warrants, to the
extent such exercise would cause such selling shareholder, together with its affiliates, to
beneficially own a number of shares of common stock which would exceed 4.99% of our then
outstanding shares of common stock following such exercise, excluding for purposes of such
determination shares of common stock issuable upon exercise of the warrants which have not been
exercised. The number of shares in the second column does not reflect this limitation. The
selling stockholders may sell all, some or none of their shares in this offering. See “Plan of
Distribution.”

17

18

	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	Maximum Number of	 	 
	 	 	 	 	Number of Shares	 	Shares to be Sold	 	Number of Shares
	 	 	 	 	Owned Prior to	 	Pursuant to this	 	Owned After
	Name of Selling Shareholder	 	Offering	 	Prospectus	 	Offering

[Footnotes]

19

PLAN OF DISTRIBUTION

We are registering the shares of common stock previously issued and the shares of common stock
issuable upon exercise of the warrants to permit the resale of these shares of common stock by the
holders of the common stock and warrants from time to time after the date of this prospectus. We
will not receive any of the proceeds from the sale by the selling stockholders of the shares of
common stock. We will bear all fees and expenses incident to our obligation to register the shares
of common stock.

The selling stockholders may sell all or a portion of the shares of common stock beneficially
owned by them and offered hereby from time to time directly or through one or more underwriters,
broker-dealers or agents. If the shares of common stock are sold through underwriters or
broker-dealers, the selling stockholders will be responsible for underwriting discounts or
commissions or agent’s commissions. The shares of common stock may be sold in one or more
transactions at fixed prices, at prevailing market prices at the time of the sale, at varying
prices determined at the time of sale, or at negotiated prices. These sales may be effected in
transactions, which may involve crosses or block transactions,

	 	•	 	on any national securities exchange or quotation service on which the securities may
be listed or quoted at the time of sale;

	 	•	 	in the over-the-counter market;

	 	•	 	in transactions otherwise than on these exchanges or systems or in the
over-the-counter market;

	 	•	 	through the writing of options, whether such options are listed on an options
exchange or otherwise;

	 	•	 	ordinary brokerage transactions and transactions in which the broker-dealer solicits
purchasers;

	 	•	 	block trades in which the broker-dealer will attempt to sell the shares as agent but
may position and resell a portion of the block as principal to facilitate the
transaction;

	 	•	 	purchases by a broker-dealer as principal and resale by the broker-dealer for its
account;

	 	•	 	an exchange distribution in accordance with the rules of the applicable exchange;

	 	•	 	privately negotiated transactions;

	 	•	 	short sales;

	 	•	 	sales pursuant to Rule 144;

	 	•	 	broker-dealers may agree with the selling securityholders to sell a specified number
of such shares at a stipulated price per share;

	 	•	 	a combination of any such methods of sale; and

	 	•	 	any other method permitted pursuant to applicable law.

If the selling stockholders effect such transactions by selling shares of common stock to or
through underwriters, broker-dealers or agents, such underwriters, broker-dealers or agents may
receive commissions in the form of discounts, concessions or commissions from the selling
stockholders or commissions from purchasers of the shares of common stock for whom they may act as
agent or to whom they may sell as principal (which discounts, concessions or commissions as to
particular underwriters, broker-dealers or agents may be in excess of those customary in the types
of transactions involved). In connection with sales of the shares of common stock or otherwise,
the selling stockholders may enter into hedging transactions with broker-dealers, which may in turn
engage in short sales of the shares of common stock in the course of hedging in positions they
assume. The selling stockholders may also sell shares of common stock short and deliver shares of
common stock covered by this prospectus to close out short positions and to return borrowed shares
in connection with such short sales. The selling stockholders may also loan or pledge shares of
common stock to broker-dealers that in turn may sell such shares.

The selling stockholders may pledge or grant a security interest in some or all of the
warrants or shares of common stock owned by them and, if they default in the performance of their
secured obligations, the pledgees or secured parties may offer and sell the shares of common stock
from time to time pursuant to this prospectus or any amendment to this prospectus under Rule
424(b)(3) or other applicable provision of the Securities Act of 1933, as amended, amending, if
necessary, the list of selling stockholders to include the pledgee, transferee or other successors
in interest as selling stockholders under this prospectus. The selling stockholders also may
transfer and donate the shares of common stock in other circumstances in which case the
transferees, donees, pledgees or other successors in interest will be the selling beneficial owners
for purposes of this prospectus.

The selling stockholders and any broker-dealer participating in the distribution of the shares
of common stock may be deemed to be “underwriters” within the meaning of the Securities Act, and
any commission paid, or any discounts or concessions allowed to, any such broker-dealer may be
deemed to be underwriting commissions or discounts under the Securities Act. At the time a
particular offering of the shares of common stock is made, a prospectus supplement, if required,
will be distributed which will set forth the aggregate amount of shares of common stock being
offered and the terms of the offering, including the name or names of any broker-dealers or agents,
any discounts, commissions and other terms constituting compensation from the selling stockholders
and any discounts, commissions or concessions allowed or reallowed or paid to broker-dealers.

Under the securities laws of some states, the shares of common stock may be sold in such
states only through registered or licensed brokers or dealers. In addition, in some states the
shares of common stock may not be sold unless such shares have been registered or qualified for
sale in such state or an exemption from registration or qualification is available and is complied
with.

There can be no assurance that any selling shareholder will sell any or all of the shares of
common stock registered pursuant to the shelf registration statement, of which this prospectus
forms a part.

The selling stockholders and any other person participating in such distribution will be
subject to applicable provisions of the Securities Exchange Act of 1934, as amended, and the rules
and regulations thereunder, including, without limitation, Regulation M of the Exchange Act, which
may limit the timing of purchases and sales of any of the shares of common stock by the selling
stockholders and any other participating person. Regulation M may also restrict the ability of any
person engaged in the distribution of the shares of common stock to engage in market-making
activities with respect to the shares of common stock. All of the foregoing may affect the
marketability of the shares of common stock and the ability of any person or entity to engage in
market-making activities with respect to the shares of common stock.

We will pay all expenses of the registration of the shares of common stock pursuant to the
registration rights agreement, estimated to be $[ ] in total, including, without limitation,
Securities and Exchange Commission filing fees and expenses of compliance with state securities or
“blue sky” laws; provided, however, that a selling shareholder will pay all underwriting discounts
and selling commissions, if any. We will indemnify the selling stockholders against liabilities,
including some liabilities under the Securities Act, in accordance with the registration rights
agreements, or the selling stockholders will be entitled to contribution. We may be indemnified by
the selling stockholders against civil liabilities, including liabilities under the Securities Act,
that may arise from any written information furnished to us by the selling shareholder specifically
for use in this prospectus, in accordance with the related registration rights agreements, or we
may be entitled to contribution.

Once sold under the shelf registration statement, of which this prospectus forms a part, the
shares of common stock will be freely tradable in the hands of persons other than our affiliates.

20EX-10.3

Exhibit 10.3

The following form of warrant was issued to the following entities in the following share amounts
at an exercise price of $1.44 per share:

	 	•	 	Nite Capital LP – 175,000

	 	•	 	Cranshire Capital, L.P. – 175,000

	 	•	 	Whalehaven Capital Fund Limited – 583,333

	 	•	 	Iroquois Master Fund Ltd. – 145,833

	 	•	 	Hudson Bay Fund, L.P. – 131,250

	 	•	 	Jeffrey Benton – 29,167

	 	•	 	Capital Ventures International – 175,000

	 	•	 	Double U Master Fund LP – 116,667

	 	•	 	Monarch Capital Fund, Ltd. – 116,667

	 	•	 	Ronald A. Durando – 70,000

	 	•	 	Gustave T. Dotoli – 35,000

	 	•	 	CGA Resources, LLC – 29,167

	 	•	 	Smithfield Fiduciary LLC – 116,667

FORM OF WARRANT

NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES
INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD,
TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE
SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL, IN A FORM
REASONABLY ACCEPTABLE TO THE COMPANY, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II)
UNLESS SOLD PURSUANT TO RULE 144 UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY
BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT
SECURED BY THE SECURITIES.

JMAR TECHNOLOGIES, INC.

WARRANT

Warrant No.:      

Number of Shares:      

Date of Issuance: December 23, 2005 (“Issuance Date”)

JMAR Technologies, Inc., a Delaware corporation (the “Company”), hereby certifies that, for value
received, the receipt and sufficiency of which are hereby acknowledged, [BUYER], the registered
holder hereof or its permitted assigns (the “Holder”), is entitled, subject to the terms set forth
below, to purchase from the Company, at the Exercise Price (as defined below) then in effect, at
any time or times on or after June 23, 2006, but not after 11:59 p.m., New York Time, on the
Expiration Date (as defined below), [     ] (     )1
fully paid nonassessable shares of Common Stock (as defined below) (the “Warrant Shares”). Except
as otherwise defined herein, capitalized terms in this Warrant shall have the meanings set forth in
Section 15. This Warrant (including all Warrants issued in exchange, transfer or replacement
hereof, the “Warrants”) is one of the Warrants (the “SPA Warrants”) issued pursuant to Section 1 of
that certain Securities Purchase Agreement, dated as of December 23, 2005 (the “Subscription
Date"), among the Company and the investors (the “Buyers”) referred to therein (the “Securities
Purchase Agreement”).

1.

1 INSERT NUMBER OF WARRANT SHARES EQUAL TO 70%
OF THE NUMBER OF COMMON SHARES PURCHASED TIMES THE HOLDER’S PERCENTAGE
PARTICIPATION.

1

EXERCISE OF WARRANT.

(a) Mechanics of Exercise. Subject to the terms and conditions hereof (including,
without limitation, the limitations set forth in Section 1(f)), this Warrant may be exercised by
the Holder on any day on or after June 23, 2006, in whole or in part, by (i) delivery of a written
notice, in the form attached hereto as Exhibit A (the “Exercise Notice”), of the Holder’s
election to exercise this Warrant and (ii) (A) payment to the Company of an amount equal to the
applicable Exercise Price multiplied by the number of Warrant Shares as to which this Warrant is
being exercised (the “Aggregate Exercise Price”) in cash or wire transfer of immediately available
funds or (B) by notifying the Company that this Warrant is being exercised pursuant to a Cashless
Exercise (as defined in Section 1(d)). The Holder shall not be required to deliver the original
Warrant in order to effect an exercise hereunder. Execution and delivery of the Exercise Notice
with respect to less than all of the Warrant Shares shall have the same effect as cancellation of
the original Warrant and issuance of a new Warrant evidencing the right to purchase the remaining
number of Warrant Shares. On or before the first Business Day following the date on which the
Company has received each of the Exercise Notice and the Aggregate Exercise Price (or notice of a
Cashless Exercise) (the “Exercise Delivery Documents”), the Company shall transmit by facsimile an
acknowledgment of confirmation of receipt of the Exercise Delivery Documents to the Holder and the
Company’s transfer agent (the “Transfer Agent”). On or before the third Business Day following the
date on which the Company has received all of the Exercise Delivery Documents (the “Share Delivery
Date”), the Company shall (X) provided that the Transfer Agent is participating in The Depository
Trust Company (“DTC”) Fast Automated Securities Transfer Program, upon the request of the Holder,
credit such aggregate number of shares of Common Stock to which the Holder is entitled pursuant to
such exercise to the Holder’s or its designee’s balance account with DTC through its Deposit
Withdrawal Agent Commission system, or (Y) if the Transfer Agent is not participating in the DTC
Fast Automated Securities Transfer Program, issue and dispatch by overnight courier to the address
as specified in the Exercise Notice, a certificate, registered in the Company’s share register in
the name of the Holder or its designee, for the number of shares of Common Stock to which the
Holder is entitled pursuant to such exercise. Upon delivery of the Exercise Notice and Aggregate
Exercise Price referred to in clause (ii)(A) above or notification to the Company of a Cashless
Exercise referred to in Section 1(d), the Holder shall be deemed for all corporate purposes to have
become the holder of record of the Warrant Shares with respect to which this Warrant has been
exercised, irrespective of the date of delivery of the certificates evidencing such Warrant Shares.
If this Warrant is submitted in connection with any exercise pursuant to this Section 1(a) and the
number of Warrant Shares represented by this Warrant submitted for exercise is greater than the
number of Warrant Shares being acquired upon an exercise, then the Company shall as soon as
practicable and in no event later than three Business Days after any exercise and at its own
expense, issue a new Warrant (in accordance with Section 7(d)) representing the right to purchase
the number of Warrant Shares purchasable immediately prior to such exercise under this Warrant,
less the number of Warrant Shares with respect to which this Warrant is exercised. No fractional
shares of Common Stock are to be issued upon the exercise of this Warrant, but rather the number of
shares of Common Stock to be issued shall be rounded up to the nearest whole number. The Company
shall pay any and all taxes which may be payable with respect to the issuance and delivery of
Warrant Shares upon exercise of this Warrant.

(b) Exercise Price. For purposes of this Warrant, “Exercise Price” means
$     2, subject to adjustment as provided herein.

(c) Company’s Failure to Timely Deliver Securities. If the Company shall fail for any
reason or for no reason to issue to the Holder within three (3) Business Days of receipt of the
Exercise Delivery Documents, a certificate for the number of shares of Common Stock to which the
Holder is entitled and register such shares of Common Stock on the Company’s share register or to
credit the Holder’s balance account with DTC for such number of shares of Common Stock to which the
Holder is entitled upon the Holder’s exercise of this Warrant, then, in addition to all other
remedies available to the Holder, the Company shall pay in cash to the Holder on each day after
such third Business Day that the issuance of such shares of Common Stock is not timely effected an
amount equal to 1.5% of the product of (A) the sum of the number of shares of Common Stock not
issued to the Holder on a timely basis and to which the Holder is entitled and (B) the Closing Sale
Price of the shares of Common Stock on the trading day immediately preceding the last possible date
which the Company could have issued such shares of Common Stock to the Holder without violating
Section 1(a). In addition to the foregoing, if within three (3) trading days after the Company’s
receipt of the facsimile copy of a Exercise Notice the Company shall fail to issue and deliver a
certificate to the Holder and register such shares of Common Stock on the Company’s share register
or credit the Holder’s balance account with DTC for the number of shares of Common Stock to which
the Holder is entitled upon such holder’s exercise hereunder, and if on or after such Trading Day
the Holder purchases (in an open market transaction or otherwise) shares of Common Stock to deliver
in satisfaction of a sale by the Holder of shares of Common Stock issuable upon such exercise that
the Holder anticipated receiving from the Company (a “Buy-In"), then the Company shall, within
three Business Days after the Holder’s request and in the Holder’s discretion, either (i) pay cash
to the Holder in an amount equal to the Holder’s total purchase price (including brokerage
commissions, if any) for the shares of Common Stock so purchased (the “Buy-In Price"), at which
point the Company’s obligation to deliver such certificate (and to issue such shares of Common
Stock) shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a
certificate or certificates representing such shares of Common Stock and pay cash to the Holder in
an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of
shares of Common Stock, times (B) the Closing Bid Price on the date of exercise.

(d) Cashless Exercise. Notwithstanding anything contained herein to the contrary, if
the Warrant is exercisable and a Registration Statement (as defined in the Registration Rights
Agreement) covering the Warrant Shares that are the subject of the Exercise Notice (the
"Unavailable Warrant Shares”) is not available for the resale of such Unavailable Warrant Shares
after the Effectiveness Deadline (as defined in the Registration Rights Agreement), the Holder may,
in its sole discretion, exercise this Warrant in whole or in part and, in lieu of making the cash
payment otherwise contemplated to be made to the Company upon such exercise in payment of the
Aggregate Exercise Price, elect instead to receive upon such exercise the “Net Number” of shares of
Common Stock determined according to the following formula (a “Cashless Exercise”):

Net Number = (A x B) — (A x C)

B

For purposes of the foregoing formula:

A = the total number of shares with respect to which this Warrant is then being
exercised.

B = the Closing Sale Price of the shares of Common Stock (as reported by Bloomberg)
on the date immediately preceding the date of the Exercise Notice.

C= the Exercise Price then in effect for the applicable Warrant Shares at the time
of such exercise.

(e) Disputes. In the case of a dispute as to the determination of the Exercise Price
or the arithmetic calculation of the Warrant Shares, the Company shall promptly issue to the Holder
the number of Warrant Shares that are not disputed and resolve such dispute in accordance with
Section 12.

(f) Limitations on Exercises.

(i) Beneficial Ownership. The Company shall not effect the exercise of this
Warrant, and the Holder shall not have the right to exercise this Warrant, to the extent
that after giving effect to such exercise, such Person (together with such Person’s
affiliates) would beneficially own in excess of 4.99% of the shares of Common Stock
outstanding immediately after giving effect to such exercise. For purposes of the foregoing
sentence, the aggregate number of shares of Common Stock beneficially owned by such Person
and its affiliates shall include the number of shares of Common Stock issuable upon exercise
of this Warrant with respect to which the determination of such sentence is being made, but
shall exclude shares of Common Stock which would be issuable upon (i) exercise of the
remaining, unexercised portion of this Warrant beneficially owned by such Person and its
affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any
other securities of the Company beneficially owned by such Person and its affiliates
(including, without limitation, any convertible notes or convertible preferred stock or
warrants) subject to a limitation on conversion or exercise analogous to the limitation
contained herein. Except as set forth in the preceding sentence, for purposes of this
paragraph, beneficial ownership shall be calculated in accordance with Section 13(d) of the
Securities Exchange Act of 1934, as amended. For purposes of this Warrant, in determining
the number of outstanding shares of Common Stock, the Holder may rely on the number of
outstanding shares of Common Stock as reflected in (1) the Company’s most recent Form 10-K,
Form 10-Q, Current Report on Form 8-K or other public filing with the Securities and
Exchange Commission, as the case may be, (2) a more recent public announcement by the
Company or (3) any other notice by the Company or the Transfer Agent setting forth the
number of shares of Common Stock outstanding. For any reason at any time, upon the written
or oral request of the Holder, the Company shall within one Business Day confirm orally and
in writing to the Holder the number of shares of Common Stock then outstanding. In any
case, the number of outstanding shares of Common Stock shall be determined after giving
effect to the conversion or exercise of securities of the Company, including the SPA
Warrants, by the Holder and its affiliates since the date as of which such number of
outstanding shares of Common Stock was reported.

(ii) Principal Market Regulation. The Company shall not be obligated to issue
any shares of Common Stock upon exercise of this Warrant if the issuance of such shares of
Common Stock would exceed that number of shares of Common Stock which the Company may issue
upon exercise of this Warrant without breaching the Company’s obligations under the rules or
regulations of the Principal Market (the “Exchange Cap”), except that such limitation shall
not apply in the event that the Company (A) obtains the approval of its shareholders as
required by the applicable rules of the Principal Market for issuances of shares of Common
Stock in excess of such amount or (B) obtains a written opinion from outside counsel to the
Company that such approval is not required, which opinion shall be reasonably satisfactory
to the Required Holders. Until such approval or written opinion is obtained, no Buyer shall
be issued, upon exercise of any SPA Warrants, shares of Common Stock in an amount greater
than the product of the Exchange Cap multiplied by a fraction, the numerator of which is the
total number of shares of Common Stock issued to such Buyer pursuant to the Securities
Purchase Agreement on the Issuance Date and the denominator of which is the aggregate number
of shares of Common Stock issued to the Buyers pursuant to the Securities Purchase Agreement
on the Issuance Date (with respect to each Buyer, the “Exchange Cap Allocation”). In the
event that any Buyer shall sell or otherwise transfer any of such Buyer’s SPA Warrants, the
transferee shall be allocated a pro rata portion of such Buyer’s Exchange Cap Allocation,
and the restrictions of the prior sentence shall apply to such transferee with respect to
the portion of the Exchange Cap Allocation allocated to such transferee. In the event that
any holder of SPA Warrants shall exercise all of such holder’s SPA Warrants into a number of
 shares of Common Stock which, in the aggregate, is less than such holder’s Exchange Cap
Allocation, then the difference between such holder’s Exchange Cap Allocation and the number
of shares of Common Stock actually issued to such holder shall be allocated to the
respective Exchange Cap Allocations of the remaining holders of SPA Warrants on a pro rata
basis in proportion to the shares of Common Stock underlying the SPA Warrants then held by
each such holder. In the event that the Company is prohibited from issuing any Warrant
Shares for which an Exercise Notice has been received as a result of the operation of this
Section 1(f)(ii), the Company shall pay cash in exchange for cancellation of such Warrant
Shares, at a price per Warrant Share equal to the difference between the Closing Sale Price
and the Exercise Price as of the date of the attempted exercise.

2. ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES.

Adjustment upon Subdivision or Combination of Common Stock. If the Company at any
time after the date of issuance of this Warrant subdivides (by any stock split, stock dividend,
recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock into a
greater number of shares, the Exercise Price in effect immediately prior to such subdivision will
be proportionately reduced and the number of Warrant Shares will be proportionately increased. If
the Company at any time after the date of issuance of this Warrant combines (by combination,
reverse stock split or otherwise) one or more classes of its outstanding shares of Common Stock
into a smaller number of shares, the Exercise Price in effect immediately prior to such combination
will be proportionately increased and the number of Warrant Shares will be proportionately
decreased. Any adjustment under this Section 2(b) shall become effective at the close of business
on the date the subdivision or combination becomes effective.

3. RIGHTS UPON DISTRIBUTION OF ASSETS.

If the Company shall declare or make any dividend or other distribution of its assets (or
rights to acquire its assets) to holders of Common Stock, by way of return of capital or otherwise
(including, without limitation, any distribution of cash, stock or other securities, property or
options by way of a dividend, spin off, reclassification, corporate rearrangement or other similar
transaction) (a “Distribution”), at any time after the issuance of this Warrant, then, in each such
case:

(a) any Exercise Price in effect immediately prior to the close of business on the record date
fixed for the determination of holders of Common Stock entitled to receive the Distribution shall
be reduced, effective as of the close of business on such record date, to a price determined by
multiplying such Exercise Price by a fraction of which (i) the numerator shall be the Closing Bid
Price of the Common Stock on the trading day immediately preceding such record date minus the value
of the Distribution (as determined in good faith by the Company’s Board of Directors) applicable to
one share of Common Stock, and (ii) the denominator shall be the Closing Bid Price of the Common
Stock on the trading day immediately preceding such record date; and

(b) the number of Warrant Shares shall be increased to a number of shares equal to the number
of shares of Common Stock obtainable immediately prior to the close of business on the record date
fixed for the determination of holders of Common Stock entitled to receive the Distribution
multiplied by the reciprocal of the fraction set forth in the immediately preceding paragraph (a);
provided that in the event that the Distribution is of common stock (“Other Common Stock”) of a
company whose common stock is traded on a national securities exchange or a national automated
quotation system, then the holder of this Warrant may elect to receive a warrant to purchase Other
Common Stock in lieu of an increase in the number of Warrant Shares, the terms of which shall be
identical to those of this Warrant, except that such warrant shall be exercisable into the number
of shares of Other Common Stock that would have been payable to the holder of this Warrant pursuant
to the Distribution had the holder exercised this Warrant immediately prior to such record date and
with an aggregate exercise price equal to the product of the amount by which the exercise price of
this Warrant was decreased with respect to the Distribution pursuant to the terms of the
immediately preceding paragraph (a) and the number of Warrant Shares calculated in accordance with
the first part of this paragraph (b).

4. PURCHASE RIGHTS; FUNDAMENTAL TRANSACTIONS.

(a) Purchase Rights. In addition to any adjustments pursuant to Section 2 above, if
at any time the Company grants, issues or sells any Options, Convertible Securities or rights to
purchase stock, warrants, securities or other property pro rata to the record holders of any class
of shares of Common Stock (the “Purchase Rights”), then the Holder will be entitled to acquire,
upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder
could have acquired if the Holder had held the number of shares of Common Stock acquirable upon
complete exercise of this Warrant (without regard to any limitations on the exercise of this
Warrant) immediately before the date on which a record is taken for the grant, issuance or sale of
such Purchase Rights, or, if no such record is taken, the date as of which the record holders of
shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights.

(b) Fundamental Transactions. The Company shall not enter into or be party to a
Fundamental Transaction unless (i) the Successor Entity assumes in writing all of the obligations
of the Company under this Warrant and the other Transaction Documents in accordance with the
provisions of this Section (4)(b) pursuant to written agreements in form and substance satisfactory
to the Required Holders and approved by the Required Holders prior to such Fundamental Transaction,
including agreements to deliver to each holder of Warrants in exchange for such Warrants a security
of the Successor Entity evidenced by a written instrument substantially similar in form and
substance to this Warrant, including, without limitation, an adjusted exercise price equal to the
value for the shares of Common Stock reflected by the terms of such Fundamental Transaction, and
exercisable for a corresponding number of shares of capital stock equivalent to the shares of
Common Stock acquirable and receivable upon exercise of this Warrant (without regard to any
limitations on the exercise of this Warrant) prior to such Fundamental Transaction, and
satisfactory to the Required Holders and (ii) the Successor Entity (including its Parent Entity) is
a publicly traded corporation whose common stock is quoted on or listed for trading on an Eligible
Market. Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to,
and be substituted for (so that from and after the date of such Fundamental Transaction, the
provisions of this Warrant referring to the “Company” shall refer instead to the Successor Entity),
and may exercise every right and power of the Company and shall assume all of the obligations of
the Company under this Warrant with the same effect as if such Successor Entity had been named as
the Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall
deliver to the Holder confirmation that there shall be issued upon exercise of this Warrant at any
time after the consummation of the Fundamental Transaction, in lieu of the shares of the Common
Stock (or other securities, cash, assets or other property) purchasable upon the exercise of the
Warrant prior to such Fundamental Transaction, such shares of stock, securities, cash, assets or
any other property whatsoever (including warrants or other purchase or subscription rights) which
the Holder would have been entitled to receive upon the happening of such Fundamental Transaction
had this Warrant been converted immediately prior to such Fundamental Transaction, as adjusted in
accordance with the provisions of this Warrant. In addition to and not in substitution for any
other rights hereunder, prior to the consummation of any Fundamental Transaction pursuant to which
holders of shares of Common Stock are entitled to receive securities or other assets with respect
to or in exchange for shares of Common Stock (a “Corporate Event”), the Company shall make
appropriate provision to insure that the Holder will thereafter have the right to receive upon an
exercise of this Warrant at any time after the consummation of the Fundamental Transaction but
prior to the Expiration Date, in lieu of the shares of the Common Stock (or other securities, cash,
assets or other property) purchasable upon the exercise of the Warrant prior to such Fundamental
Transaction, such shares of stock, securities, cash, assets or any other property whatsoever
(including warrants or other purchase or subscription rights) which the Holder would have been
entitled to receive upon the happening of such Fundamental Transaction had the Warrant been
exercised immediately prior to such Fundamental Transaction. Provision made pursuant to the
preceding sentence shall be in a form and substance reasonably satisfactory to the Required
Holders. The provisions of this Section shall apply similarly and equally to successive
Fundamental Transactions and Corporate Events and shall be applied without regard to any
limitations on the exercise of this Warrant.

5. NONCIRCUMVENTION. 

The Company hereby covenants and agrees that the Company will not, by amendment of its
Certificate of Incorporation or through any reorganization, transfer of assets, consolidation,
merger, dissolution, issue or sale of securities, or any other voluntary action, avoid or seek to
avoid the observance or performance of any of the terms of this Warrant, and will at all times in
good faith carry out all the provisions of this Warrant and take all action as may be required to
protect the rights of the holder of this Warrant. Without limiting the generality of the
foregoing, the Company (i) will not increase the par value of any shares of Common Stock receivable
upon the exercise of this Warrant above the Exercise Price then in effect, (ii) will take all such
actions as may be necessary or appropriate in order that the Company may validly and legally issue
fully paid and nonassessable shares of Common Stock upon the exercise of this Warrant, and (iii)
will, so long as any of the SPA Warrants are outstanding, take all action necessary to reserve and
keep available out of its authorized and unissued Common Stock, solely for the purpose of effecting
the exercise of the SPA Warrants, 100% of the number of shares of Common Stock as shall from time
to time be necessary to effect the exercise of the SPA Warrants then outstanding (without regard to
any limitations on exercise).

6. HOLDER NOT DEEMED A STOCKHOLDER. 

Except as otherwise specifically provided herein, no holder, solely in such Person’s capacity
as a holder, of this Warrant shall be entitled to vote or receive dividends or be deemed the holder
of shares of the Company for any purpose, nor shall anything contained in this Warrant be construed
to confer upon the holder hereof, solely in such Person’s capacity as a holder of this Warrant, any
of the rights of a shareholder of the Company or any right to vote, give or withhold consent to any
corporate action (whether any reorganization, issue of stock, reclassification of stock,
consolidation, merger, conveyance or otherwise), receive notice of meetings, receive dividends or
subscription rights, or otherwise, prior to the issuance to the holder of this Warrant of the
Warrant Shares which such Person is then entitled to receive upon the due exercise of this Warrant.
In addition, nothing contained in this Warrant shall be construed as imposing any liabilities on
such holder to purchase any securities (upon exercise of this Warrant or otherwise) or as a
stockholder of the Company, whether such liabilities are asserted by the Company or by creditors of
the Company. Notwithstanding this Section 6, the Company will provide the holder of this Warrant
with copies of the same notices and other information given to the stockholders of the Company
generally, contemporaneously with the giving thereof to the stockholders, except for those notices
and other information contained within the SEC Documents and available on the SEC’s EDGAR system.

7. REISSUANCE OF WARRANTS.

(a) Transfer of Warrant. If this Warrant is to be transferred, the holder shall
surrender this Warrant to the Company, whereupon the Company will forthwith issue and deliver upon
the order of the holder of this Warrant a new Warrant (in accordance with Section 7(d)), registered
as the holder of this Warrant may request, representing the right to purchase the number of Warrant
Shares being transferred by the Holder and, if less then the total number of Warrant Shares then
underlying this Warrant is being transferred, a new Warrant (in accordance with Section 7(d)) to
the holder of this Warrant representing the right to purchase the number of Warrant Shares not
being transferred.

(b) Lost, Stolen or Mutilated Warrant. Upon receipt by the Company of evidence
reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this
Warrant, and, in the case of loss, theft or destruction, of any indemnification undertaking by the
holder of this Warrant to the Company in customary form and, in the case of mutilation, upon
surrender and cancellation of this Warrant, the Company shall execute and deliver to the Holder a
new Warrant (in accordance with Section 7(d)) representing the right to purchase the Warrant Shares
then underlying this Warrant.

(c) Warrant Exchangeable for Multiple Warrants. This Warrant is exchangeable, upon
the surrender hereof by the Holder at the principal office of the Company, for a new Warrant or
Warrants (in accordance with Section 7(d)) representing in the aggregate the right to purchase the
number of Warrant Shares then underlying this Warrant, and each such new Warrant will represent the
right to purchase such portion of such Warrant Shares as is designated by the holder of this
Warrant at the time of such surrender; provided, however, that no Warrants for fractional shares of
Common Stock shall be given.

(d) Issuance of New Warrants. Whenever the Company is required to issue a new Warrant
pursuant to the terms of this Warrant, such new Warrant (i) shall be of like tenor with this
Warrant, (ii) shall represent, as indicated on the face of such new Warrant, the right to purchase
the Warrant Shares then underlying this Warrant (or in the case of a new Warrant being issued
pursuant to Section 7(a) or Section 7(c), the Warrant Shares designated by the holder of this
Warrant which, when added to the number of shares of Common Stock underlying the other new Warrants
issued in connection with such issuance, does not exceed the number of Warrant Shares then
underlying this Warrant), (iii) shall have an issuance date, as indicated on the face of such new
Warrant which is the same as the Issuance Date, and (iv) shall have the same rights and conditions
as this Warrant.

8. NOTICES. 

Whenever notice is required to be given under this Warrant, unless otherwise provided herein,
such notice shall be given in accordance with Section 9(f) of the Securities Purchase Agreement.
The Company shall provide the holder of this Warrant with prompt written notice of all actions
taken pursuant to this Warrant, including in reasonable detail a description of such action and the
reason therefore. Without limiting the generality of the foregoing, the Company will give written
notice to the holder of this Warrant (i) immediately upon any adjustment of the Exercise Price,
setting forth in reasonable detail, and certifying, the calculation of such adjustment and (ii) at
least fifteen days prior to the date on which the Company closes its books or takes a record (A)
with respect to any dividend or distribution upon the Common Stock or (B) for determining rights to
vote with respect to any Fundamental Transaction, dissolution or liquidation, provided in each case
that such information shall be made known to the public prior to or in conjunction with such notice
being provided to such holder.

9. AMENDMENT AND WAIVER. 

Except as otherwise provided herein, the provisions of this Warrant may be amended and the
Company may take any action herein prohibited, or omit to perform any act herein required to be
performed by it, only if the Company has obtained the written consent of the holders of SPA
Warrants representing at least a majority of the shares of Common Stock obtainable upon exercise of
the SPA Warrants then outstanding; provided that no such action may increase the exercise price of
any SPA Warrant or decrease the number of shares or class of stock obtainable upon exercise of any
SPA Warrant without the written consent of the holder of this Warrant. No such amendment shall be
effective to the extent that it applies to less than all of the holders of the SPA Warrants then
outstanding.

10. GOVERNING LAW. 

This Warrant shall be construed and enforced in accordance with, and all questions concerning
the construction, validity, interpretation and performance of this Warrant shall be governed by,
the internal laws of the State of New York, without giving effect to any choice of law or conflict
of law provision or rule (whether of the State of New York or any other jurisdictions) that would
cause the application of the laws of any jurisdictions other than the State of New York.

11. CONSTRUCTION; HEADINGS. 

This Warrant shall be deemed to be jointly drafted by the Company and all the Buyers and shall
not be construed against any person as the drafter hereof. The headings of this Warrant are for
convenience of reference and shall not form part of, or affect the interpretation of, this Warrant.

12. DISPUTE RESOLUTION. 

In the case of a dispute as to the determination of the Exercise Price or the arithmetic
calculation of the Warrant Shares, the Company shall submit the disputed determinations or
arithmetic calculations via facsimile within two Business Days of receipt of the Exercise Notice
giving rise to such dispute, as the case may be, to the holder of this Warrant. If the holder of
this Warrant and the Company are unable to agree upon such determination or calculation of the
Exercise Price or the Warrant Shares within three Business Days of such disputed determination or
arithmetic calculation being submitted to the Holder, then the Company shall, within two Business
Days submit via facsimile (a) the disputed determination of the Exercise Price to an independent,
reputable investment bank selected by the Company and approved by the holder of this Warrant or (b)
the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside
accountant. The Company shall cause at its expense the investment bank or the accountant, as the
case may be, to perform the determinations or calculations and notify the Company and the Holder of
the results no later than ten Business Days from the time it receives the disputed determinations
or calculations. Such investment bank’s or accountant’s determination or calculation, as the case
may be, shall be binding upon all parties absent demonstrable error.

13. REMEDIES, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. 

The remedies provided in this Warrant shall be cumulative and in addition to all other
remedies available under this Warrant, the Securities Purchase Agreement and the Registration
Rights Agreement, at law or in equity (including a decree of specific performance and/or other
injunctive relief), and nothing herein shall limit the right of the holder of this Warrant to
pursue actual damages for any failure by the Company to comply with the terms of this Warrant. The
Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm
to the holder of this Warrant and that the remedy at law for any such breach may be inadequate.
The Company therefore agrees that, in the event of any such breach or threatened breach, the holder
of this Warrant shall be entitled, in addition to all other available remedies, to an injunction
restraining any breach, without the necessity of showing economic loss and without any bond or
other security being required.

14. TRANSFER.

This Warrant may be offered for sale, sold, transferred or assigned without the consent of the
Company, except as may otherwise be required by Section 2(f) of the Securities Purchase Agreement.

15. CERTAIN DEFINITIONS. 

For purposes of this Warrant, the following terms shall have the following meanings:

(a) "Bloomberg” means Bloomberg Financial Markets.

(b) "Business Day” means any day other than Saturday, Sunday or other day on which commercial
banks in The City of New York are authorized or required by law to remain closed.

(c) "Closing Bid Price” and “Closing Sale Price” means, for any security as of any date, the
last closing bid price and last closing trade price, respectively, for such security on the
Principal Market, as reported by Bloomberg, or, if the Principal Market begins to operate on an
extended hours basis and does not designate the closing bid price or the closing trade price, as
the case may be, then the last bid price or last trade price, respectively, of such security prior
to 4:00:00 p.m., New York Time, as reported by Bloomberg, or, if the Principal Market is not the
principal securities exchange or trading market for such security, the last closing bid price or
last trade price, respectively, of such security on the principal securities exchange or trading
market where such security is listed or traded as reported by Bloomberg, or if the foregoing do not
apply, the last closing bid price or last trade price, respectively, of such security in the
over-the-counter market on the electronic bulletin board for such security as reported by
Bloomberg, or, if no closing bid price or last trade price, respectively, is reported for such
security by Bloomberg, the average of the bid prices, or the ask prices, respectively, of any
market makers for such security as reported in the “pink sheets” by Pink Sheets LLC (formerly the
National Quotation Bureau, Inc.). If the Closing Bid Price or the Closing Sale Price cannot be
calculated for a security on a particular date on any of the foregoing bases, the Closing Bid Price
or the Closing Sale Price, as the case may be, of such security on such date shall be the fair
market value as mutually determined by the Company and the Holder. If the Company and the Holder
are unable to agree upon the fair market value of such security, then such dispute shall be
resolved pursuant to Section 12. All such determinations to be appropriately adjusted for any
stock dividend, stock split, stock combination or other similar transaction during the applicable
calculation period.

(d) "Common Stock” means (i) the Company’s common stock, par value $0.01 per share, and (ii)
any capital stock into which such Common Stock shall have been changed or any capital stock
resulting from a reclassification of such Common Stock.

(e) "Convertible Securities” means any stock or securities (other than Options) directly or
indirectly convertible into or exercisable or exchangeable for Common Stock.

(f) "Eligible Market” means The New York Stock Exchange, Inc., the American Stock Exchange,
the Nasdaq National Market or the Principal Market.

(g) "Expiration Date” means June 23, 2011.

(h) "Fundamental Transaction” means that the Company shall, directly or indirectly, in one or
more related transactions, (i) consolidate or merge with or into (whether or not the Company is the
surviving corporation) another Person, or (ii) sell, assign, transfer, convey or otherwise dispose
of all or substantially all of the properties or assets of the Company to another Person, or (iii)
allow another Person to make a purchase, tender or exchange offer that is accepted by the holders
of more than the 50% of the outstanding shares of Common Stock (not including any shares of Common
Stock held by the Person or Persons making or party to, or associated or affiliated with the
Persons making or party to, such purchase, tender or exchange offer), or (iv) consummate a stock
purchase agreement or other business combination (including, without limitation, a reorganization,
recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person
acquires more than the 50% of the outstanding shares of Common Stock (not including any shares of
Common Stock held by the other Person or other Persons making or party to, or associated or
affiliated with the other Persons making or party to, such stock purchase agreement or other
business combination), or (v) reorganize, recapitalize or reclassify its Common Stock.

(i) "Options” means any rights, warrants or options to subscribe for or purchase Common Stock
or Convertible Securities.

(j) "Parent Entity” of a Person means an entity that, directly or indirectly, controls the
applicable Person and whose common stock or equivalent equity security is quoted or listed on an
Eligible Market, or, if there is more than one such Person or Parent Entity, the Person or Parent
Entity with the largest public market capitalization as of the date of consummation of the
Fundamental Transaction.

(k) "Person” means an individual, a limited liability company, a partnership, a joint venture,
a corporation, a trust, an unincorporated organization, any other entity and a government or any
department or agency thereof.

(l) "Principal Market” means The NASDAQ Capital Market.

(m) "Registration Rights Agreement” means that certain registration rights agreement dated the
Subscription Date by and among the Company and the Buyers.

(n) "Required Holders” means the holders of the SPA Warrants representing at least a majority
of shares of Common Stock underlying the SPA Warrants then outstanding.

(o) "Successor Entity” means the Person (or, if so elected by the Required Holders, the Parent
Entity) formed by, resulting from or surviving any Fundamental Transaction or the Person (or, if so
elected by the Required Holders, the Parent Entity) with which such Fundamental Transaction shall
have been entered into.

[Signature Page Follows]

2

IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed as of the
Issuance Date set out above.

JMAR TECHNOLOGIES, INC.

By:

Name:

Title:

2INSERT AMOUNT EQUAL TO 120% OF THE VOLUME
WEIGHTED AVERAGE CLOSING PRICES FOR EACH OF THE 5 DAYS PRIOR TO AND INCLUDING
THE CLOSING DATE.

3

EXHIBIT A

EXERCISE NOTICE

TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS

WARRANT

JMAR TECHNOLOGIES, INC.

To: JMAR Technologies, Inc.

The undersigned is the holder of Warrant No.      (the “Warrant”) issued by JMAR
Technologies, Inc., a Delaware corporation (the “Company”). Capitalized terms used herein and not
otherwise defined shall have the respective meanings set forth in the Warrant.

1. The Warrant is currently exercisable to purchase a total of      Warrant Shares.

2. The undersigned holder hereby exercises its right to purchase      Warrant Shares
pursuant to the Warrant.

3. The Holder intends that payment of the Exercise Price shall be made as:

	 	 	 
	     

	 	a “Cash Exercise” with respect to      Warrant Shares; and/or
	
 
	 	 
	     

	 	a “Cashless Exercise” with respect to      Warrant Shares.
	
 
	 	 

4. Pursuant to this exercise, the Company shall deliver to the holder      Warrant
Shares in accordance with the terms of the Warrant.

5. Following this exercise, the Warrant shall be exercisable to purchase a total of
     Warrant Shares.

Please issue the Warrant Shares in the following name and to the following address:

Issue to:

Account Number:

(if electronic book entry transfer)

DTC Participant Number:

(if electronic book entry transfer)

Date:      ,      

Name of Registered Holder

By:

Name:

Title:

4

ACKNOWLEDGMENT

The Company hereby acknowledges this Exercise Notice and hereby directs Computershare Trust
Company to issue the above indicated number of shares of Common Stock in accordance with the
Transfer Agent Instructions dated December 23, 2005 from the Company and acknowledged and agreed to
by Computershare Trust Company.

JMAR TECHNOLOGIES, INC.

By:

Name:

Title:

5

FORM OF ASSIGNMENT

[To be completed and signed only upon transfer of Warrant]

FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto
     the right represented by the within Warrant to purchase
     shares of Common Stock of JMAR Technologies, Inc. to which the within Warrant relates
and appoints      attorney to transfer said right on the books of JMAR Technologies,
Inc. with full power of substitution in the premises.

	 	 	 
	Dated: ,

	 	

	 
	 	 
	
 
	 	(Signature must conform in all respects to name

of holder as specified on the face of the

Warrant)
	 
	 	 
	
 
	 	Address of Transferee
	 
	 	 
	 
	 	 
	 
	 	 
	In the presence of:

	 	

	 
	 	 

6

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