<PAGE>
                                                                   Exhibit 10(i)


                               PURCHASE AGREEMENT

                                   dated as of

                                  March 4, 1997

                                      among

                                   BKR, INC.,
                              a Nevada corporation

                               Response USA, Inc.,
                             a Delaware corporation

                                       and

                                HealthLink, Ltd.,
                       a Nevada limited liability company


<PAGE>

                                TABLE OF CONTENTS

                                                                            Page

ARTICLE 1
            DEFINITIONS......................................................2
            1.1   Definitions................................................2

ARTICLE 2
            SALE OF FIFTY PERCENT (50%) UNDIVIDED
            INTEREST IN ASSETS AND TRANSFER OF SELLER
            AND BUYER'S INTEREST IN SUCH ASSETS..............................6
            2.1   Purchase and Sale of Purchased Interest
                  by Buyer...................................................6
            2.2   Purchase Price.............................................6
            2.3   Transfer of Purchased Interest by Buyer
                  to the Company.............................................7
            2.4   Transfer of Seller's Remaining Interest to
                  the Company................................................7
            2.5   Liabilities Not Being Assumed..............................7
            2.6   Post-Closing Adjustment to Response
                  Shares.....................................................7

ARTICLE 3
            CLOSING..........................................................8
            3.1   Closing Date...............................................8
            3.2   Documents to be Delivered at the Closing
                  by Seller..................................................8
            3.3   Documents to be Delivered at the Closing
                  by Buyer...................................................8
            3.4   Contributions of Purchased and
                  Remaining Interest.........................................8
            3.5   Delivery of HealthLink Memberships.........................8
            3.6   Delivery of Response Warrant...............................8

ARTICLE 4
            REPRESENTATIONS AND WARRANTIES OF BUYER
             ................................................................9
            4.1   Organization and Related Matters...........................9
            4.2   Authorization..............................................9
            4.3   No Conflicts...............................................9
            4.4   No Brokers or Finders......................................9
            4.5   Capital Structure..........................................9


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<PAGE>

            4.6   Disclosure Package........................................10
            4.7   Validity of Shares........................................10
            4.8   Absence of Litigation.....................................11
            4.9   Eligibility for Use of Form S-3...........................11

ARTICLE 5
            REPRESENTATIONS AND WARRANTIES OF
            SELLER..........................................................11
            5.1   Seller Organization and Related Matters...................11
            5.2   Authorization of Seller...................................11
            5.3   No Other Liabilities or Contingencies.....................11
            5.4   Absence of Certain Developments...........................12
            5.5   Material Contracts........................................12
            5.6   Title to Properties.......................................12
            5.7   Intangible Property.......................................13
            5.8   Tax Matters...............................................13
            5.9   Accounting Records........................................13
            5.10  No Defaults or Conflicts..................................14
            5.11  Legal Proceedings.........................................14
            5.12  Permits; No Violation of Law..............................14
            5.13  Compliance with Law.......................................15
            5.14  No Brokers or Finders.....................................15
            5.15  Environmental Compliance..................................15
            5.16  Acquisition for Investment................................15
            5.17  Material Facts............................................16
            5.18  Accuracy..................................................16

ARTICLE 6
            COVENANTS WITH RESPECT TO CONDUCT OF
            SELLER AND BUYER BEFORE AND AFTER
            CLOSING.........................................................16
            6.1   Conduct of Business.......................................16
            6.2   Access; Books and Records.................................17
            6.3   Notification of Certain Matter............................17
            6.4   Permits and Approvals.....................................17
            6.5   Cooperation...............................................18
            6.6   Administration of Accounts................................18
            6.7   Registration of Response Shares...........................18

ARTICLE 7
            CONDITIONS OF PURCHASE..........................................22


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<PAGE>

            7.1   Conditions Precedent to the Obligation of
                  the Buyer to Close........................................22
            7.2   Conditions Precedent to the Obligation of
                  the Seller to Close.......................................23

ARTICLE 8
            TERMINATION OF OBLIGATIONS;
            SURVIVAL OF COVENANTS...........................................24
            8.1   Termination of Agreement..................................24
            8.2   Effect of Termination.....................................25

ARTICLE 9
            INDEMNIFICATION.................................................25
            9.1   Obligations of the Seller.................................25
            9.2   Obligations of Buyer......................................26
            9.3   Procedure.................................................26
            9.4   Exclusive Remedy; Survival................................28

ARTICLE 10
            GENERAL.........................................................28
            10.1  Amendments; Waivers.......................................28
            10.2  Exhibits; Integration.....................................29
            10.3  Best Efforts; Further Assurances..........................29
            10.4  Choice of Law.............................................29
            10.5  Arbitration...............................................29
            10.6  No Assignment.............................................29
            10.7  Headings..................................................29
            10.8  Counterparts..............................................30
            10.9  Publicity and Reports.....................................30
            10.10 Confidentiality...........................................30
            10.11 Notices...................................................30
            10.12 Expenses..................................................31
            10.13 Waiver....................................................31
            10.14 Representation By Counsel;
                  Interpretation............................................31
            10.15 Specific Performance......................................31
            10.16 Severability..............................................31
                  Signatures............................................32, 33


                                       iii

<PAGE>

                               PURCHASE AGREEMENT

      THIS PURCHASE AGREEMENT (the "Agreement") is entered into as of March ,
__, 1997, among BKR, Inc., a Nevada corporation ("Seller"), Response USA, Inc.,
a Delaware corporation ("Buyer"), and HealthLink, Ltd., a Nevada limited
liability company ("the "Company"), with respect to the following facts:

      A.    Seller is engaged in the manufacture, sale and monitoring of
            Personal Emergency Response Systems ("PERS") to the general public;
            and

      B.    The parties have agreed to: (i) the purchase by Buyer of a fifty
            percent (50%) undivided interest in Seller's Assets; (ii) the
            contribution of Seller's remaining fifty percent (50%) undivided
            interest in the Assets to HealthLink; and (iii) the contribution of
            Buyer's fifty percent (50%) undivided interest in the Assets to
            HealthLink (the "Company");

                                    AGREEMENT

      NOW, THEREFORE, the parties agree as follows:

                                    ARTICLE 1
                                   DEFINITIONS

1.1 Definitions. As used in this Agreement and the Exhibits and Schedules
delivered pursuant to this Agreement, the following definitions shall apply:

      (a) "Action" means any action, complaint, investigation, suit or other
proceeding, whether civil or criminal, in law or in equity, or before any
arbitrator or Governmental Entity.

      (b) "Affiliate" means a legal or natural Person that directly, or
indirectly through one or more intermediaries, controls, is controlled by, or is
under common control with a specified Person; or a legal or natural Person that
directly, or indirectly through one or more intermediaries, owns or holds any
financial interest in a specified legal Person or a specified legal Person's
constituent members or shareholders.

      (c) "Agreement" means this Agreement by and among Buyer, Seller and
HealthLink as amended or supplemented as provided in this Agreement.

      (d) "Approval" means any approval, authorization, consent, qualification
or registration, or any waiver of the foregoing, required to be obtained from,
or any notice, statement or other communication required to be filed with or
delivered to, any Governmental Entity or any other Person.


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<PAGE>

      (e) "Business" means the ownership and operation of the manufacture, sale
and monitoring of Personal Emergency Response Systems ("PERS") and all
activities incidental or related thereto, including the ownership of
intellectual property and all other such activities so related, and shall be
deemed to include any of the following incidents of such business: income, cash
flow, operations, condition (financial or other), and assets of Seller.

      (f) "Business Day" means any day except Saturday, Sunday or any day on
which banks in the State of Nevada are permitted to be closed.

      (g) "Closing" means the consummation of the transaction contemplated by
this Agreement.

      (h) "Closing Date" means the date of the Closing.

      (i) "Code" means the Internal Revenue Code of 1986, as amended from time
to time.

      (j) "Contract" means any agreement, arrangement, bond, commitment,
franchise, indemnity, indenture, instrument, lease, license or understanding,
whether or not in writing.

      (k) "Contribution Date" means the date upon which Seller transfers the
Assets to Buyer, which shall be the same date upon which Buyer contributes the
Assets to the Company.

      (l) "Employment Contracts" means all oral, written and executed employment
Contracts relating to the Business, including written and executed Contracts
with executives and employees, if any, and all rights of Seller thereunder.

      (m) "Encumbrance" means any claim, charge, easement, encumbrance, security
interest, lien, option, pledge, right of others or restriction (whether on
voting, sale, transfer, disposition or otherwise), whether imposed by agreement,
understanding, law, equity or otherwise, except for any restrictions on transfer
generally arising under any applicable federal or state securities law.

      (n) "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended, and the related regulations and published interpretations.

      (o) "ERISA Affiliate" means Seller and all trades or businesses (whether
or not incorporated) that are members of a group of which Seller is a member and
which are (i) a "controlled group" within the meaning of Section 414(b) of the
Code, (ii) a group "under common control" within the meaning of Section 414(c)
of the Code, or (iii) an "affiliated service group" within the meaning of
Section 414(m) or of the Code.

      (p) "GAAP" means generally accepted accounting principles in the United
States, as in effect from time to time. Where more than one alternative
treatment is permitted by


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<PAGE>

GAAP as of any date, GAAP shall be deemed to refer, as of such date, to the
treatment actually utilized by Seller so long as such treatment is permitted by
GAAP.

      (q) "Governmental Entity" means any government or any agency, bureau,
commission, court, department, official, political subdivision, tribunal or
other instrumentality of any government, whether federal, state or local,
domestic or foreign.

      (r) "Hazardous Substance" includes (but shall not be limited to)
substances that are defined or listed in, or otherwise classified pursuant to,
any applicable Laws as "hazardous substances," "hazardous materials," "hazardous
wastes" or "toxic substances," or any other formulation intended to define, list
or classify substances by reason of deleterious properties such as ignitability,
corrosivity, reactivity, carcinogenicity or reproductive toxicity, and petroleum
and drilling fluids, produced waters and other wastes associated with the
exploration, development, or production of crude oil, natural gas or geothermal
energy.

      (s) "Indemnifiable Claim" means any Loss for or against which any party is
entitled to indemnification under this Agreement; "Claim" includes any claim of
right to indemnification.

      (t) "Intangible Property" means any trade secret or other confidential
information or know-how and any and all Marks and goodwill.

      (u) "IRS" means the Internal Revenue Service or any successor entity.

      (v) "Knowledge" means matters that are to the best knowledge of a party
after diligent inquiry, including matters that would have been disclosed by an
accountant's audit.

      (w) "Law" means any constitutional provision, statute or other law, rule,
regulation, or interpretation of any thereof and any Order.

      (x) "Loss" means any cost, damage, disbursement, expense, liability, loss,
deficiency, diminution in value, obligation, penalty (except to the extent
incurred solely by reason of the act or omission of the specified Person) or
settlement of any kind or nature, whether foreseeable or unforeseeable,
including interest or other carrying costs, penalties (except to the extent
incurred solely by reason of the act or omission of the specified Person),
reasonable legal, accounting and other professional fees and expenses incurred
in the investigation, collection, prosecution and defense of claims and amounts
paid in settlement that may be imposed on or otherwise incurred or suffered by
the specified Person.

      (y) "Material Contract" means any Contract to which Seller is a party or
by which any of its assets is in a material manner bound or affected that (a)
after the Balance Sheet Date could obligate Seller to pay an amount of Five
Hundred Dollars ($500.00) or more,


                                       4
<PAGE>

(b) has a term beyond three (3) months after the Closing Date, (c) otherwise
could restrict Business activities, (d) provides for the extension of credit,
(e) limits the ability of the Buyer to conduct the Business, including as to
manner or place, (f) provides for a guaranty or indemnity, (g) grants a power of
attorney, agency or similar authority to another person or entity, (h) contains
a right of first refusal or right of consent, or (i) requires Seller or the
Company, upon transfer of the Assets, to buy or sell goods.

      (z) "Order" means any decree, injunction, judgment, order, ruling or writ.

      (aa) "Permit" means any license, permit, franchise, certificate of
authority or order, or any waiver of the foregoing, required to be issued by any
Governmental Entity.

      (bb) "Person" means an association, a corporation, an individual, a
partnership, a limited liability company, a trust or any other entity or
organization, including a Governmental Entity.

      (cc) "Purchased Interest" shall have the meaning set forth in Section 2.1
of this Agreement.

      (dd) "Purchase Price" shall have the meaning set forth in Section 2.2 of
this Agreement.

      (ee) "Remaining Interest" shall have the meaning set forth in Section 2.1
of this Agreement.

      (ff) "Tax" means any foreign, federal, state, county or local income,
sales and use, excise, franchise, real and personal property, transfer, gross
receipt, capital stock, production, business and occupation, disability,
employment, payroll, severance or withholding tax or charge imposed by any
Governmental Entity, any interest and penalties (civil or criminal) related
thereto or to the nonpayment thereof, and any Loss in connection with the
determination, settlement or litigation of any Tax liability.

      (gg) "Tax Return" means a report, return or other information required to
be supplied to a Governmental Entity with respect to Taxes including, where
permitted or required, combined or consolidated returns for any group of
entities that includes any Affiliate.

      (hh) "Assets" are assets of the Seller described in Exhibit A.

      (ii) "The Response Closing Price Per Share" means the average bid price
for the Response Shares on the NASDAQ stock exchange during the fifteen (15)
trading days immediately preceding March 4, 1997.

For all purposes of this Agreement, except as otherwise expressly provided:


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<PAGE>

      (i) the terms defined in this Article I have the meanings assigned to them
in this Article I and include the plural as well as the singular,

      (ii) all accounting terms not otherwise defined herein have the meanings
assigned under GAAP,

      (iii) all references in this Agreement to designated "Articles,"
"Sections" and other subdivisions are to the designated Articles, Sections and
other subdivisions of the body of this Agreement,

      (iv) pronouns of either gender or neuter shall include, as appropriate,
the other pronoun forms,

      (v) the words "herein," "hereof" and "hereunder" and other words of
similar import refer to this Agreement as a whole and not to any particular
Article, Section or other subdivision, and

      (vi) the words "include," "including" and other words of similar import
mean "include, without limitation," or "including, without limitation,"
regardless of whether any reference to "without limitation" or words of similar
import is made.

                                    ARTICLE 2
            SALE OF FIFTY PERCENT (50%) UNDIVIDED INTEREST IN ASSETS
           AND TRANSFER OF SELLER AND BUYER'S INTEREST IN SUCH ASSETS

2.1 Purchase and Sale of Purchased Interest by Buyer. In reliance upon the
representations, warranties and covenants contained herein, and subject to the
terms and conditions of this Agreement, on the Closing Date Seller shall sell,
convey, assign, transfer and deliver to the Buyer a fifty percent (50%)
undivided interest in the Assets set forth in Exhibit A. Such interest is
referred to as the "Purchased Interest." The remaining fifty percent (50%)
undivided interest in the Assets owned by Seller as set forth in Exhibit A,
shall be referred to as the "Remaining Interest."

2.2 Purchase Price. In reliance upon the representations, warranties and
covenants contained herein, and subject to the terms and conditions of this
Agreement, Buyer shall pay to Seller the Purchase Price of Three Million Three
Hundred Thousand Dollars ($3,300,000.00). The purchase price shall be payable by
the delivery of a number of shares of common stock of Buyer ("Response Shares")
having a value equal to the Purchase Price. The number of shares required to
attain the Three Million Three Hundred Thousand Dollars ($3,300,000.00) shall be
computed by averaging the closing bid price for the Response Shares on the
NASDAQ stock exchange during the fifteen (15) trading days immediately preceding
the Closing Date (the "Response Closing Price Per Share").
The Response Shares shall contain a restriction such that Seller may only sell
Five Thousand (5,000) shares per day for no more than one hundred thousand
(100,000) shares per month.


                                       6
<PAGE>

            Buyer shall undertake to immediately register such shares for the
benefit of Seller by the filing of a registration statement pursuant to the
provisions of Section 6.7 hereof.

2.3 Transfer of Purchased Interest by Buyer to the Company. In reliance upon the
representations, warranties and covenants contained herein, and subject to the
terms and conditions of this Agreement, on the Closing Date Buyer shall
contribute, convey, assign, transfer and deliver to HealthLink, Ltd. the
Purchased Interest.

2.4 Transfer of Seller's Remaining Interest to the Company. In reliance upon the
representations, warranties and covenants contained herein, and subject to the
terms and conditions of this Agreement, on the Closing Date Seller shall
contribute, convey, assign, transfer and deliver to the Company the Remaining
Interest. Seller shall receive a fifty percent (50%) membership interest in
exchange for the contribution of the Remaining Interest to the business of
HealthLink, Ltd. which shall be governed by the terms and conditions of an
Operating Agreement in substantially the form attached hereto as Exhibit O.

2.5 Liabilities Not Being Assumed. Buyer and HealthLink, Ltd. are not assuming
any liabilities of the Seller other than obligations arising from and after the
Closing Date under the contracts.

2.6 Post-Closing Adjustment to Response Shares. If Seller sells at least
1,000,000 Response Shares in open market transactions, and the average gross
sale price per share obtained by Seller is less than the Response Closing Price
per share (as evidenced by copies of appropriate brokerage account statements,
or any other manner reasonably acceptable to Buyer) (the "Shortfall Amount"),
then Buyer shall, at its option either:

            (a) Pay to Seller within sixty (60) days after notice of such sale
an amount equal to the difference between the Response Closing Price per share
and Seller's gross sale price per share; or

            (b) Deliver to such Seller additional shares of Common Stock with an
aggregate market value (based on the average closing bid price of the Common
Stock during the fifteen (15) trading days immediately preceding the date of
delivery) equal to such difference, which shares shall be registered and freely
transferable without restriction under the Securities Act, other than any
restriction arising from the holders status as an "affiliate," as defined in
Rule 144 under the Securities Act.

            Upon the sale of the balance of Seller's Response Shares, the
foregoing procedure shall be followed such that Seller shall in no event receive
aggregate gross proceeds from the sale of the Response Shares of less than
$3,300,000. To the extent that Seller receives a Shortfall Amount form Purchaser
and receives gross proceeds from the sale of the Response Shares in excess of
$3,300,000 (the "Excess"), Seller shall pay to


                                       7
<PAGE>

Purchaser within sixty (60) days of the last sale of the Response Shares, an
amount equal to the Excess, but not to exceed the Shortfall Amount.

                                    ARTICLE 3
                                     CLOSING

3.1 Closing Date. The Closing of the transaction shall take place at the office
of BKR at 7944 E. Beck Lane, Suite 210, Scottsdale, Arizona, 85260, on or before
the close of business March , 1997.

3.2 Documents to be Delivered at the Closing by Seller. At the Closing, Seller
shall deliver or cause to be delivered to Buyer certificates and such other
instruments of transfer necessary or appropriate to transfer to and vest in the
Buyer and thereafter in HealthLink, Ltd. all of Seller's right, title and
interest in and to fifty percent (50%) of the Assets.

3.3 Documents to be Delivered at the Closing by Buyer. Within forty-eight (48)
hours after the Closing, Buyer shall deliver or cause to be delivered to Seller,
the shares representing the Purchase Price .

3.4 Contributions of Purchased and Remaining Interest. At the Closing Seller and
Buyer shall deliver or cause to be delivered to HealthLink certificates or such
other instruments of transfer necessary or appropriate to transfer and vest in
HealthLink, Ltd. all of Buyer's and Seller's interests in the Purchased and
Remaining Interests. Seller shall deliver an Optional Advance Note substantially
in the form attached hereto marked Exhibit N for the benefit of the Company.

3.5 Delivery of HealthLink Memberships. Subject to the successful and completed
contributions and transfers set forth in Section 3.4 above HealthLink, Ltd.
shall cause membership certificates to be issued and delivered to Seller and
Buyer representing the membership interest of each in HealthLink, Ltd.

3.6 Delivery of Response Warrant. Within forty-eight (48) hours after the
Closing, Buyer shall deliver or cause to be delivered to Seller a Warrant, in
the form attached hereto as Exhibit W, whereby Buyer grants to Seller the right
to purchase 30,000 Response Shares for each 10,000 personal emergency response
systems placed on line by HealthLink, Ltd. following the Closing Date, up to an
aggregate maximum of 450,000 Response Shares. The purchase price for such shares
shall be $3.00 per share. The shares covered by such warrant shall be registered
by Buyer pursuant to Section 6.7 below.

                                    ARTICLE 4
                     REPRESENTATIONS AND WARRANTIES OF BUYER

Buyer represents, warrants and agrees as follows:


                                       8
<PAGE>

4.1 Organization and Related Matters. Buyer is a corporation duly organized and
validly existing under the laws of the State of Delaware and has all necessary
power and authority to operate, own and lease its properties and assets, to
carry on its business as now conducted, and to perform its obligations under
this Agreement.

4.2 Authorization. Buyer has all required power and authority and has taken all
actions necessary to enter into this Agreement, to consummate all other
transactions contemplated hereby, and to perform its obligations hereunder. This
Agreement and any other agreements, instruments or documents entered into by
Buyer pursuant to this Agreement have been duly executed and delivered by Buyer
and constitute the legal, valid and, assuming due execution and delivery by the
other parties hereto and thereto, binding obligations of Buyer, enforceable in
accordance with their terms, except as to the effect, if any, of (a) applicable
bankruptcy and other similar laws affecting the rights of creditors generally
and (b) rules of law and equity governing specific performance, injunctive
relief and other equitable remedies. The execution, delivery and performance of
this Agreement and any other agreement, instrument or document entered into by
Buyer pursuant to this Agreement and the Operating Agreement, have been duly
authorized by all necessary action of Buyer.

4.3 No Conflicts. The execution, delivery and performance of this Agreement by
Buyer will not (a) materially violate the provisions of, or constitute a
material breach or default (whether upon lapse of time and/or the occurrence of
any act or event, or otherwise) under, its charter documents or bylaws or any
Contract to which it is a party that is material to its financial condition,
results of operations or conduct of its business, or (b) violate any Law to
which Buyer is subject.

4.4 No Brokers or Finders. No agent, broker, finder or investment or commercial
banker, or other Person or firm engaged by or acting on behalf of Buyer or its
Affiliates in connection with the negotiation, execution or performance of this
Agreement or the transactions contemplated by this Agreement, is or will be
entitled to any broker's or finder's or similar fees or other commissions as a
result of this Agreement or such transactions. The Buyer agrees to pay any such
brokerage commissions, finders fees or similar compensation and to indemnify and
hold Seller harmless against any damages incurred as a result of any such claim.

4.5 Capital Structure.

            (a) Stock and Options. The authorized capital stock of Buyer 
consists of 4,130,908 shares of common stock, .008 par value, and 6,890 
shares of Preferred Stock, 1996 Series A, 1,000 par value. At the close of 
business on March 4, 1997, 4,130,908 shares of Buyer's common stock were 
issued and outstanding, zero shares of Buyer's common stock were held by 
Buyer in its Treasury and 1,233,381 Class A Warrants; 1,481,950 Class B 
Warrants; 49,700 Class C Warrants; 175,000 Options at $4.50; 1,032,000 
Options at $3.25 to Mellon Bank; and 2,868,400 Insider Options at $2.50 for 
shares of Buyer's common stock were reserved for issuance upon the exercise 
of the

                                       9
<PAGE>

warrants or options to purchase Buyer's common stock. 6,890shares of Buyer's
Preferred Stock, 1996 Series A are issued and outstanding.

            (b) No Other Commitments. Except for the Buyer options disclosed in
Section 4.5(a) above, and listed on Schedule 4.5 hereto, as of the date hereof,
there are no options, warrants, convertible, or other securities, calls,
commitments, conversion privileges or preemptive or other rights or agreements
of any character to which Buyer is a party or by which Buyer is bound obligating
Buyer or any of Buyer's subsidiaries to issue, deliver or sell, or cause to be
issued, delivered or sold, any shares of capital stock of Buyer to grant, extend
or enter into any such option, warrant, call, right, commitment, conversion
right or agreement.

4.6 Disclosure Package. Buyer has delivered to Seller the following documents:
(a) Buyer's Annual Report on Form 10-KSB for the fiscal year ended June 30,
1996; (b) Buyer's Quarterly Report on Form 10-QSB for the quarter ended
September 30, 1996; (c) Buyer's Quarterly Report on Form 10-QSB for the quarter
ended December 31, 1996; (d) all Current Reports on Form 8-K filed by Buyer
since July 1, 1996; and (e) all other documents filed by Buyer with the
Securities and Exchange Commission since July 1, 1996. The documents listed or
required to be listed in items (a) through (e) above are collectively referred
to as the "Buyer Disclosure Package." The financial statements of Buyer included
in the Buyer Disclosure Package complied as to form in all material respects
with the then applicable accounting requirements and published rules and
regulations of the Securities and Exchange Commission with respect thereto, were
prepared in accordance with generally accepted accounting principals applied on
a consistent basis during the periods involved (except as may have been
indicated in the notes thereto or, in the case of any unaudited statements, as
permitted by Form 10-Q as promulgated by the SEC) and fairly present (subject,
in the case of the unaudited statements, to normal, year-end, audit adjustments)
be consolidated financial position of Buyer and its consolidated subsidiaries as
at the respective dates thereof and the consolidated results of their operations
and cash flows. All of the documents contained in the Buyer Disclosure Package
are true, correct and complete in all material respects and do not contain any
untrue statements of material fact or omit to state any material fact necessary
in order to make such representations, warranties, or statements, in light of
the circumstances under which they were made, not misleading.

4.7 Validity of Shares. The Response Shares to be issued pursuant to this
Agreement will, when issued, (a) be duly authorized, validly issued, fully paid
and non-assessable, (b) be free and clear of any liens and encumbrances except
for applicable restrictions on transfer under applicable securities law, and (c)
not be subject to any preemptive rights created by statute, the certificate of
incorporation or the bylaws of Buyer.

4.8 Absence of Litigation. Except as set forth in Schedule 4.8, there is no
claim, action, proceeding or investigation pending or, to the best of knowledge
of Buyer, threatened against Buyer or any property or asset of Buyer, before any
court, arbitrator or administrative, governmental or regulatory or body,
domestic or foreign, which individually or in the aggregate would be a material
adverse affect on Buyer. Neither Buyer nor any


                                       10
<PAGE>

property or asset of Buyer is subject to any order, writ, judgment, injunction,
decree, determination or award which would have, individually or in the
aggregate, a material adverse affect on Buyer.

4.9 Eligibility for Use of Form S-3. Buyer is eligible to use Form S-3 under the
Securities Act of 1933, as amended, to register the Response Shares as
contemplated by Section 6.7 hereof. Buyer shall use its best efforts to maintain
such eligibility until the sale of all of the Response Shares by Seller.

                                    ARTICLE 5
                    REPRESENTATIONS AND WARRANTIES OF SELLER

Seller represents, warrants and agrees, except as set forth in the schedules
attached to this Agreement, as follows:

5.1 Seller Organization and Related Matters. Seller is a corporation duly
organized and validly existing under the laws of the State of Nevada and has all
necessary power and authority to operate, own and lease its properties and
assets, to carry on its Business as now conducted, and to perform its
obligations under this Agreement.

5.2 Authorization of Seller. Seller has all required power and authority and has
taken all actions necessary to enter into this Agreement, to sell, assign,
contribute and deliver the Assets to Buyer and consummate all other transactions
contemplated hereby, and to perform its obligations hereunder. This Agreement
and any other agreements, instruments or documents entered into by Seller
pursuant to this Agreement have been duly executed and delivered by Seller and
constitute the legal, valid and, assuming due execution and delivery by the
other parties hereto and thereto, binding obligations of Seller, enforceable in
accordance with their terms, except as to the effect, if any, of (a) applicable
bankruptcy and other similar laws affecting the rights of creditors generally
and (b) rules of law and equity governing specific performance, injunctive
relief and other equitable remedies. The execution, delivery and performance of
this Agreement and any other agreement, instrument or document entered into by
Seller pursuant to this Agreement have been duly authorized by all necessary
action of Seller.

5.3 No Other Liabilities or Contingencies. To Seller's Knowledge, Seller does
not have any liabilities of any nature that relate to the Business except the
Liabilities set forth in Exhibit B. The financial statements disclosed by Seller
to Buyer as set forth in Exhibit B fairly represent the financial condition of
Seller as of the dates set forth therein. Upon Seller's transfer of the Assets
to Buyer, Buyer shall not assume and will not have any liabilities or
obligations material to the Business or its condition (financial or otherwise),
whether accrued, absolute, contingent or otherwise, and whether due or to become
due, except for obligations arising from and after the Closing Date under the
Material Contracts. Upon Seller's transfer of the Assets to Buyer, Buyer shall
own the Assets free and clear of any Encumbrances.


                                       11
<PAGE>

            (a) Except as set forth in this Agreement, upon Seller's transfer of
the Remaining Interest in the Assets to HealthLink, Ltd., HealthLink, Ltd. shall
not have any liabilities or obligations to the Business or its condition
(financial or otherwise), whether accrued, absolute, contingent or otherwise,
and whether due or to become due, except for obligations arising after the
Closing Date under the Material Contracts. Since the Balance Sheet Date, Seller
has not incurred any accrued or contingent liability other than in the ordinary
course of business.

5.4 Absence of Certain Developments. Since the Balance Sheet Date, there has
been no (a) adverse change in the condition, financial or otherwise, of Seller
or in the assets, liabilities, properties or business of Seller, or, in the
reasonable judgment of Seller, the prospects of any of them, (b) declaration,
setting aside or payment of any distribution with respect to Seller, (c) loss,
destruction or damage to any property of Seller, whether or not insured, which
loss would have an adverse effect on the Business taken as a whole, (d) labor
trouble involving Seller or the Assets or any change in any of its personnel or
the terms and conditions of employment, (e) waiver of any material right, (f)
loan or extension of credit to any officer or employee of Seller, or (g)
acquisition or disposition of any assets (or any contract or arrangement
therefor) or any other transaction by Seller other than for fair value in the
ordinary course of business.

5.5 Material Contracts. All Material Contracts being assigned to Buyer and the
Company that relate to the Business to which Seller or any Affiliate of Seller
is a party or assignee or to which Seller or any of its properties are subject
or by which any thereof are bound are listed in Exhibit B, and true copies of
the agreements appearing in such Exhibit, including all amendments and
supplements (and accurate descriptions of all oral agreements), have been made
available to Buyer. Each Material Contract is valid and in full force and effect
and enforceable in accordance with its terms; Seller has duly performed all its
obligations thereunder to the extent that such obligations to perform have
accrued; and no breach or default by Seller, or any other party or obligor with
respect thereto, has occurred or as a result of this Agreement or performance
will occur. Consummation of the transactions contemplated by this Agreement will
not (and will not give any person a right to) terminate or modify any rights of,
or accelerate or otherwise affect any obligation of Seller, Buyer or the Company
under any Material Contract.

5.6 Title to Properties. Seller has good and marketable title to all properties
and assets necessary to the Business as currently conducted and as presently
proposed to be conducted, and to all of its properties and assets, free and
clear of all Encumbrances except as disclosed in this Agreement. All tangible
property included in such properties that is reasonably necessary to the
Business is in good condition and repair, except for reasonable wear and tear;
and all leases of real or personal property, to which Seller is a party, are
fully effective and upon the transfer of Buyer's interest in the Assets to the
Company, will afford Buyer and the Company peaceful and undisturbed possession
of the subject matter of such leases. Seller is not in violation of any zoning,
building or safety ordinance, regulation or requirement or other law or
regulation applicable to the operation of owned or leased properties likely to
impede the normal operation of the Business, and Seller has not received any
written notice of violation with which Seller has not complied.


                                       12
<PAGE>

5.7 Intangible Property. Exhibit C lists any and all Marks, Patents and other
material items of Intangible Property in which Seller has an interest and the
nature of such interest. Such assets include all Permits or other rights with
respect to any of the foregoing. Seller has complete rights to and ownership of
all Intangible Property required for use in connection with the Business,
including the right to use, free and clear of claims or rights of others, all
trade secrets, customer lists, processes, computer software, patents, copyrights
and trademarks required for, incident to or included in the Business. Seller
does not use any such Intangible Property by consent of any other person and is
not required to and does not make any payments to others with respect thereto.
Such Intangible Property of Seller is fully assignable free and clear of any
Encumbrances. Seller has performed all obligations required to be performed by
it, and is not in default under any Contract relating to any of the foregoing.
In the operation of the Business, Seller (i) does not, to its knowledge,
infringe any patent, copyright or trademark rights of others; (ii) represents
and warrants that all trade secrets, know-how, technical processes and
procedures developed and belonging to Seller that are material to the Business
of Seller and will be material to the Business upon transfer of the Assets to
Buyer and thereafter to the Company, and that have not been patented, have been
kept confidential; and (iii) is not using and has not used any confidential
information, trade secrets or computer software required for the Business of any
former employer of any of Seller's past or present employees.

5.8 Tax Matters. There are no Taxes due and payable by Seller related to the
Business that have not been paid or adequately reserved for. There have been no
examinations or audits of any Tax Returns or reports by any applicable
Governmental Entity. There have been no actions or failures to act that would
inappropriately (a) defer taxable income or gains that would otherwise properly
accrue or (b) accelerate taxable deductions or losses that would otherwise
properly accrue. Seller has duly filed all Tax Returns required to have been
filed by it, and such Tax Returns are accurate and complete in all material
respects. There are no waivers of applicable statutes of limitations with
respect to Taxes for any year.

5.9 Accounting Records. Seller has records that accurately and validly reflect
its transactions relating to the Business and accounting controls sufficient to
ensure that such transactions are (a) executed in accordance with management's
general or specific authorization and (b) recorded so as to maintain
accountability for such assets and transactions.

5.10 No Defaults or Conflicts. Seller is not in default (which default would
have a material adverse effect on Seller's, Buyer's or Company's properties or
assets or the business of Seller, Buyer or Company as currently conducted or
proposed to be conducted): (a) under its charter documents or its bylaws or any
note, indenture, mortgage, lease, agreement, contract, purchase order or other
instrument, document or agreement to which it is a party or by which it or any
of its property is bound or affected or (b) under any Order of any Governmental
Entity. There exists no condition, event or act which after notice, lapse of
time, or both, could constitute a default by Seller, Buyer or Company under any
of the foregoing. To Seller's Knowledge, no third party is in default under any
Contract


                                       13
<PAGE>

to which Seller, Buyer or Company is a party or by which any of them or any of
their property is affected (which default would have an adverse effect on
Seller's, Buyer's or Company's properties or assets or the business of Seller,
Buyer or Company as currently conducted or proposed to be conducted). The
execution, delivery and performance of this Agreement by Seller and the
execution, delivery and performance of any related agreement or contemplated
transactions by Seller will not: (x) violate, or constitute a breach or default
(whether upon lapse of time and/or the occurrence of any act or event or
otherwise) under any Material Contract binding on Buyer or Company or its assets
following transfer of the Assets to Buyer and Company by Seller as described
herein, (y) result in the imposition of any Encumbrance against any of Seller's
or, following transfer of the Assets to Buyer or Company, Buyer's assets or
Company's assets or (z) violate any Law to which Seller, Buyer, Company or their
respective assets are subject.

5.11 Legal Proceedings. There is no Order or Action pending or threatened,
against or affecting the Business, the Assets, conditions (financial or
otherwise) or prospects of the Seller (a) that questions the validity of this
Agreement, or any other agreements, instruments or documents entered into by
Seller pursuant to this Agreement or the right of Seller to enter into them or
to consummate the transactions contemplated hereby or thereby, or (b) that
individually or, when aggregated with one or more other Orders or Actions, has
resulted or might reasonably be expected to result in an adverse circumstance or
has impaired or might reasonably be expected to impair Seller's ability to
perform this Agreement or the consummation of the transactions contemplated by
this Agreement. Neither Seller nor any of its officers or directors (as
applicable) are a party to, or subject to the provisions of, any Order or Action
of any Governmental Entity. There is no Action by the Seller currently pending
or that Seller currently intends to initiate. There is no matter relating to the
Business or the assets of Seller as to which Seller has received any notice,
claim or assertion against or affecting any employee, agent or representative of
the Seller or any other Person, in connection with which any such Person has or
may be expected to have any right to be indemnified by any of the Seller.

5.12 Permits; No Violation of Law. Seller holds all Permits that are required by
any Governmental Entity to permit Seller (upon transfer of the Assets to Buyer
and Company), Buyer and Company to conduct the Business and all such Permits are
valid and in full force and effect. Seller is not in violation of any Law of any
Governmental Entity relevant to the ownership of its properties or the carrying
on of the Business.

5.13 Compliance with Law. Seller has organized and has conducted the Business in
accordance with applicable Laws, and the forms, procedures and practices of
Seller are in compliance with any applicable law governing bulk transfers.

5.14 No Brokers or Finders. No agent, broker, finder or investment or commercial
banker, or other Person or firm engaged by or acting on behalf of the Seller in
connection with the negotiation, execution or performance of this Agreement, or
the transactions contemplated by this Agreement, will be entitled to any
brokerage or finder's or similar fee or other commission as a result of this
Agreement or such transactions. The Seller agrees to pay any such brokerage
commissions, finder's fees or similar


                                       14
<PAGE>

compensation and to indemnify and hold Buyer harmless against any damages
incurred as a result of any such claim.

5.15 Environmental Compliance. To Seller's Knowledge: (a) Seller has not
generated, used, transported, treated, stored, released or disposed of, and has
not expressly permitted anyone else to generate, use, transport, treat, store,
release or dispose of, any Hazardous Substance in violation of any Law; (b) any
Hazardous Substance handled or dealt with in any way in connection with the
Business of Seller during Seller's ownership has been and is being handled or
dealt with in all respects in compliance with applicable Laws; and (c) there has
not been any generation, use, transportation, treatment, storage, release or
disposal of any Hazardous Substance in connection with the conduct of the
Business of Seller that, to the best of Seller's knowledge, information or
belief, has created any liability under any Laws or which would require
reporting to or notification of any Governmental Entity.

5.16 Acquisition for Investment. Seller has such knowledge and experience in
financial and business matters that it is capable of evaluating the merits and
risks of the investment in the Response Shares, and is able to bear the economic
risks of such investment. Seller is acquiring the Response Shares for its own
account, for investment and not with a view to distribution. Seller acknowledges
that:

            (a) Seller has been given the opportunity to ask questions of
Buyer's management.

            (b) Buyer has heretofore furnished Seller with copies of its June
30, 1996 Form 10-KSB, and subsequent Form 10-QSB.

            (c) The offering of the Response Shares has not been registered
under the Securities Act of 1933 (the "Securities Act"); Buyer is relying on the
exemption from such registration provided by Section 4(2) of the Securities Act
as a transaction by an issuer not involving a public offering.

5.17 Material Facts. This Agreement, the Exhibits and the Schedules hereto and
furnished contemporaneously herewith, and each other agreement, document,
certificate or written statement furnished or to be furnished to Buyer through
the Closing Date by or on behalf of Seller in connection with the transactions
contemplated hereby do not contain any untrue statement of a material fact or
omit to state a material fact necessary to make the statements contained herein
or therein in light of the circumstances in which they were made not misleading.
There is no fact known to Company that has not been disclosed herein or
otherwise by Seller to Buyer that may materially adversely affect the Business,
properties, assets or condition (financial or otherwise) of Buyer or the
Company.

5.18 Accuracy. The accuracy of the Exhibits and/or Schedules provided by Seller
in connection with this Agreement shall be the sole responsibility of Seller on
the one hand,


                                       15
<PAGE>

and not Buyer, on the other hand, notwithstanding any involvement by any
employees or representatives of Buyer in the preparation and compilation of such
Exhibits and/or Schedules.

                                    ARTICLE 6
                   COVENANTS WITH RESPECT TO CONDUCT OF SELLER
                       AND BUYER BEFORE AND AFTER CLOSING

From the date hereof each of Buyer and Seller will comply with the terms and
provisions of this Article 6 applicable to such Person.

6.1 Conduct of Business. With respect to the Business, Seller will not, without
the prior consent in writing of Buyer:

            (a) conduct the Business except in the ordinary course consistent
with prudent industry practice; or

            (b) except in accordance with their terms, terminate, allow to
expire, renew or renegotiate any Material Contract or default in any of its
obligations under any Material Contract or enter into any new Material Contract
that is not reflected in the Balance Sheet (it being understood that Seller
shall promptly notify Buyer of any such termination, expiration, renewal,
renegotiation or default and of any such new Material Contract); or

            (c) terminate or fail to renew or preserve any Permits, or take any
action that would jeopardize the continuance of its material supplier or
customer relationships unless adequate replacement therefor is arranged; or

            (d) incur or agree to incur any obligation or liability (absolute or
contingent) that individually calls for payment of any amount outside the normal
course of business; or

            (e) sell, transfer, mortgage, encumber or otherwise dispose of any
of the assets of the Business except as contemplated by this Agreement; or

            (f) dispose of or permit to lapse any rights to the use of any
Intangible Property relating to the Business or dispose of or disclose any such
Intangible Property not a matter of public knowledge; or

            (g) introduce any material new method of management or operation in
respect of the Business; or

            (h) take any action or inaction that would cause any of the
representations or warranties contained in this Agreement to be inaccurate; or

            (i) extend any statutes of limitation.


                                       16
<PAGE>

6.2 Access; Books and Records. Seller will authorize and permit Buyer and a
reasonable number of its representatives to have reasonable access during normal
business hours, and in such manner as will not unreasonably interfere with the
conduct of the Business, to all of its properties, books, records, operating
instructions and procedures, Tax Returns and all other information with respect
to the Business as Buyer may from time to time request, and at Buyer's expense
to make copies of such books, records and other documents and to discuss its
business with such third Persons, including its or their (as applicable)
directors, officers, employees, accountants, counsel, suppliers,
concessionaires, customers and creditors as Buyer considers necessary or
appropriate for the purposes of familiarizing itself with the Business of
Seller.

6.3 Notification of Certain Matters. Seller shall give prompt notice to Buyer,
and Buyer shall give prompt notice to Seller, of (i) the occurrence, or failure
to occur, of any event that would be likely to cause any representation or
warranty by such Person contained in this Agreement to be untrue or inaccurate
in any material respect and (ii) any failure of Buyer, Seller or the Company to
comply with or satisfy, in any material respect, any covenant, condition or
agreement to be complied with or satisfied by it under this Agreement.

6.4 Permits and Approvals.

            (a) Seller and Buyer each agree to cooperate and use their
reasonable efforts to obtain (and will promptly prepare all registrations,
filings and applications, requests and notices preliminary to) all Approvals and
Permits that may be necessary or that may be reasonably requested by Buyer, in
each case, necessary to consummate the transactions contemplated by this
Agreement and to conduct the Business thereafter.

            (b) To the extent that the Approval of a third party with respect to
any Material Contract is required in connection with the transactions
contemplated by this Agreement, Seller and Buyer shall use their best efforts to
obtain such Approval prior to the Closing Date and, in the event that any such
Approval is not obtained, Seller shall cooperate with Buyer and use its best
efforts to provide Buyer with the benefits of each such Material Contract.

            (c) From the date of this Agreement, Seller agrees to use its best
efforts to include in any material agreements entered into subsequent to the
date of this Agreement and relating in any way to the Business ("Subsequent
Contracts") a provision permitting the assignment of any such Subsequent
Contract to Buyer or the Company and providing that upon such assignment Buyer
or the Company shall succeed to all of Seller's rights, title and interests
thereunder subject to Buyer's or the Company's assumption of all Seller's
duties, powers and obligations under such Subsequent Contract.

6.5 Cooperation. After the Closing, Buyer and Seller each will afford to each
other, and to each other's accountants, counsel and other representatives,
reasonable


                                       17
<PAGE>

access during normal business hours to the books and records of Seller. Each
party or its representatives may, at such party's own expense, make copies of
such books and records. Seller agrees to preserve the books and records that are
retained by Seller following transfer of the Assets to Buyer and Seller and
Buyer agree to preserve the books and records transferred by Seller to Buyer,
for at least three (3) full calendar years after the date such records were
prepared, and each party agrees to give at least thirty (30) days' advance
written notice to the other if at any time thereafter it intends to dispose of
such books and records in order to give the other party the right to collect and
keep them.

6.6 Administration of Accounts. After the Closing, Buyer and Seller agree to use
their best efforts to orderly transition the business to HealthLink, Ltd. and to
account for the day to day operation of the assets and the business.

6.7 Registration of Response Shares.

            (a) Buyer shall use its best efforts to register for resale the
Response Shares issued to the Sellers, as well as any shares of Buyer's Common
Stock issuable to Seller pursuant to the Warrant, under the Securities Act of
1933, as amended (the "Securities Act"). With respect to the Response Shares to
be registered, Buyer shall take the following actions:

                  (i) Prepare, file by April 15, 1997, cause to become effective
as soon as possible and keep effective for a period of three (3) years following
the Closing, with the Commission, a registration statement or statements or
similar documents (the "Registration Statement"), and reasonable and necessary
amendments, to include such Response Shares;

                  (ii) Furnish to Seller or its permitted assignees such numbers
of copies of a prospectus, including a preliminary prospectus, and all
amendments and supplements thereto, in conformity with the requirements of the
Securities Act;

                  (iii) Register and qualify the securities covered by the
Registration Statement under such other securities or Blue Sky laws of such
jurisdictions deemed necessary by Seller, and prepare and file in those
jurisdictions such amendments (including post-effective amendments) and
supplements and to take such other actions as may be necessary to maintain such
registration and qualification as necessary;

                  (iv) Furnish to Seller an option of counsel to Buyer, dated as
of the effective date of the Registration Statement.

                  (v) Notify Seller at any time when a prospectus relating to
securities covered by the Registration Statement is required to be delivered
under the Securities Act, of the happening of any event as a result of which the
prospectus included in the Registration Statement, as then in effect, includes
an untrue statement of a material fact or omits to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading in light of the circumstances then existing. Buyer will


                                       18
<PAGE>

promptly amend or supplement the Registration Statement to correct any such
untrue statement or omission;

                  (vii) Notify Seller of the issuance by the SEC of any stop
order suspending the effectiveness of the Registration Statement or the
initiation of any proceedings for the purpose; and

                  (viii) Do such other actions or make available to Seller such
documents as reasonably required under the Securities Act and as reasonably
requested in relation to the registration of securities covered by the
Registration Statement.

            (b) Notwithstanding the foregoing, Buyer shall not be obligated to
take any action pursuant to this Section 6.7:

                  (i) In any particular jurisdiction in which Buyer would be
required to execute a general consent to service of process in affecting such
registration, qualification or compliance, unless Buyer is already subject to
service in such jurisdiction and except as may be required by the Securities
Act; or

                  (ii) If, at such time, the Response Shares held by the Seller
are freely tradeable without regard to any volume restrictions under Rule 144
promulgated under the Securities Act.

            (c) All expenses incurred in connection with registrations pursuant
to this Section 6.7, including, without limitation, all registration,
qualification and filing fees, printing expenses, escrow fees, fees and
disbursements of counsel for Buyer, blue sky fees and expenses, the expense of
any special audits incident to or required by any such registration shall be
borne by Buyer. All underwriting discounts, selling commissions and stock
transfer taxes applicable to the Response Shares being registered by Seller
shall be borne by Seller.

            (d) The obligations of Buyer to register the Response Shares, shall
not be transferable by the Sellers except in connection with (i) a distribution
of the Response Shares to the shareholders of Seller, or (ii) if the
Registration Statement is not effective by September 30, 1997, in connection
with a transfer of the Response Shares, prior to the effectiveness of the
Registration Statement, by a Seller to a Qualified Institutional Buyer as
defined in Rule 144A under the Securities Act. Sellers shall give prompt notice
of any such transfer.

            (e) Buyer shall, without limitation as to time, indemnify and hold
harmless, to the fullest extent permitted by law, Seller and Seller's officers,
directors, shareholders, attorneys, accountants and other agents from and
against all losses, claims, damages, liabilities, costs (including, without
limitation, reasonable attorneys' fees) and expenses (collectively, "Losses"),
as incurred, arising out of or based upon any untrue or alleged


                                       19
<PAGE>

untrue statement of a material fact contained in the Registration Statement,
Prospectus or form of Prospectus or in any amendment or supplement thereto or in
any preliminary prospectus, or arising out of or based upon any omission or
alleged omission to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading, except insofar as
the same are based solely upon information furnished in writing to Buyer by
Seller or their counsel expressly for use therein; provided, that Buyer shall
not be liable to Seller to the extent that any such Losses arise out of or are
based upon an untrue statement or alleged untrue statement or omission or
alleged omission made in any preliminary prospectus if either (A)(i) Seller
failed to send or deliver a copy of the Prospectus with or prior to the delivery
of written confirmation of the sale by Seller of a Response Share to the person
asserting the claim from which such Losses arise and (ii) the Prospectus would
have corrected such untrue statement or alleged untrue statement or such
omission or alleged omission; or (B)(x) such untrue statement or alleged untrue
statement, omission or alleged omission is corrected in an amendment or
supplement to the Prospectus and (y) having previously been furnished by or on
behalf of Buyer with copies of the Prospectus as so amended or supplemented,
Seller thereafter fails to deliver such Prospectus as so amended or
supplemented, prior to or concurrently with the sale of a Response Share to the
person asserting the claim from which such Losses arise.

            (f) In connection with the Registration Statement, Seller shall
furnish to Buyer in writing such information as Buyer reasonably requests for
use in connection with the Registration Statement or Prospectus and hereby agree
to indemnify, to the fullest extent permitted by law, and without limitation as
to time, Buyer, its directors and officers, agents and employees, each person
who controls Buyer (within the meaning of Section 15 of the Securities Act and
Section 20 of the Exchange Act), and the directors, officers, agents or
employees of such controlling persons, from and against all Losses arising out
of or based upon any untrue statement of a material fact contained in the
Registration Statement, Prospectus or preliminary prospectus or arising out of
or based upon any omission of a material fact required to be stated therein or
necessary to make the statements therein not misleading, to the extent, but only
to the extent, that such untrue statement or omission is contained in any
information so furnished in writing by any of Seller or their counsel to Buyer
expressly for use in such Registration Statement or Prospectus and that such
information was relied upon by Buyer in preparation of such Registration
Statement, Prospectus or preliminary prospectus. In no event shall the liability
of Seller hereunder be greater in amount than the dollar amount of the proceeds
received by Seller upon the sale of the Response Shares giving rise to such
indemnification obligation.

            (g) If any Person shall be entitled to indemnity hereunder (an
"indemnified party"), such indemnified party shall give prompt notice to the
party from which such indemnity is sought (the "indemnifying party") of any
claim or of the commencement of any proceeding ("Proceeding") with respect to
which such indemnified party seeks indemnification or contribution pursuant
hereto; provided, that the failure to so notify the indemnifying party shall not
relieve the indemnifying party from any obligation or liability except to the
extent that the indemnifying party shall demonstrate damage caused by such


                                       20
<PAGE>

failure. After any such notice with respect to a matter instituted by a third
party, the indemnifying party may, or if so requested by the indemnified party,
the indemnifying party shall, participate in any such action, suit or other
proceeding or assume the defense thereof, with counsel reasonably satisfactory
to the indemnified party; provided however, that the indemnified party shall
have the right to participate at its own expense in the defense of any such
action, suit or other proceeding. Furthermore, should the indemnifying party not
assume the defense in a prompt manner or should there be a conflict of interest
in connection with the representation of both the indemnifying party and the
indemnified party, the indemnified party shall have the right to appoint its own
counsel, the reasonable fee and expenses of which shall be borne by the
indemnifying party. All such fees and expenses (including any fees and expenses
incurred in connection with investigation or preparing to defend such action or
proceeding) shall be paid to the indemnified party, as incurred, within five (5)
days of written notice thereof to the indemnifying party (regardless of whether
it is ultimately determined that an indemnified party is not entitled to
indemnification hereunder). The indemnifying party shall not consent to entry of
any judgment or enter into any settlement or otherwise seek to terminate any
proceeding in which any indemnified party is or could be a party under this
Section 2, unless such judgment, settlement or other termination includes as an
unconditional term thereof the giving by the claimant or plaintiff to such
indemnified party of a release, in form and substance satisfactory to the
indemnified party, from all liability in respect of such claim or litigation for
which such indemnified party would be entitled to indemnification hereunder.

            (h) If the indemnification provided for in this Section 6.7 is
unavailable to any indemnified party under paragraphs (e) or (f) hereof in
respect to any Losses or is insufficient to hold such indemnified party
harmless, then each applicable indemnifying party, in lieu of indemnifying such
indemnified party, shall, jointly and severally, contribute to the amount paid
or payable by such indemnified party as a result of such Losses, in such
proportion as is appropriate to reflect the relative fault of the indemnifying
party or indemnifying parties, on the one hand, and such indemnified party, on
the other hand, in connection with the actions, statements or omissions that
resulted in such Losses as well as any other relevant equitable considerations.
The relative fault of such indemnifying party or indemnifying parties, on the
one hand, and such indemnified party, on the other hand, shall be determined by
reference to, among other things, whether any action in question, including any
untrue or alleged untrue statement of a material fact or omission or alleged
omission of a material fact, has been taken or made by, or relates to
information supplied by, such indemnifying party or indemnified party, and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such action, statement or omission. The amount paid or
payable by a party as a result of any Losses shall be deemed to include any
legal or other fees or expenses incurred by such party in connection with any
Proceeding.

            The parties hereto agree that it would not be just and equitable if
contribution pursuant to this paragraph (g) were determined by pro rata
allocation or by any other method of allocation that does not take into account
the equitable considerations referred to in the immediately preceding paragraph.
Notwithstanding the provision of this paragraph (g), none of Seller shall be
required to contribute any amount in excess of the amount by 


                                       21
<PAGE>

which the total price at which the Responses Shares sold by Seller and
distributed to the public were offered to the public exceeds the amount of any
damages which Seller has otherwise been required to pay by reason of such untrue
or alleged untrue statement or omission or alleged omission. No person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) shall be entitled to contribution from any Person who was not
guilty of such fraudulent misrepresentation.

                                    ARTICLE 7
                             CONDITIONS OF PURCHASE

7.1 Conditions Precedent to the Obligation of the Buyer to Close. The
obligations of Buyer to effect the Closing shall be subject to the following
conditions except to the extent waived in writing by Buyer:

            (a) Representations and Warranties and Covenants of Seller. The
representations and warranties of Seller herein contained shall be true in all
material respects at the Closing Date Seller shall have performed all
obligations and complied with all covenants and conditions required by this
Agreement to be performed or complied with by it at or prior to the Closing
Date, and Seller shall have delivered to Buyer a certificate of Seller in form
and substance reasonably satisfactory to Buyer, dated the Closing Date and
signed by its Chairman of the Board, President or its Vice-President to such
effect.

            (b) No Adverse Fact. No fact, event, circumstance or condition that
would be expected to have a material adverse effect on the Business shall have
occurred following the date hereof and be continuing.

            (c) No Orders: Legal Proceedings. No Law or Order shall have been
enacted, entered, issued, promulgated or enforced by any Governmental Entity
that prohibits or restricts or would (if successful) prohibit or restrict the
transactions contemplated by this Agreement. No Governmental Entity shall have
notified any party to this Agreement that consummation of the transactions
contemplated by this Agreement would constitute a violation of any Law of any
jurisdiction and/or that it intends to commence proceedings to restrain or
prohibit such transactions or force divestiture or rescission, unless such
Governmental Entity shall have withdrawn such notice and abandoned any such
proceedings prior to the time that otherwise would have been the Closing Date,
unless nationally recognized counsel known to have expertise as to such matters
on behalf of the party against whom such action or proceeding was or would be
instituted renders to the parties a favorable opinion that such action or
proceeding is or would be without merit.

            (d) Legal Opinion. Buyer shall have received a legal opinion from
counsel for Seller in form and substance satisfactory to Buyer.

            (e) Due Diligence. Buyer shall not have discovered any information
during the course of its due diligence investigation that could have a material
adverse effect 


                                       22
<PAGE>

on the Business or which is at material variance with the information previously
provided to Buyer by Seller.

            (f) Employment Agreement. HealthLink, Ltd. shall have entered into
an employment agreement with an individual to manage the operations of
HealthLink, Ltd., which agreement is reasonably satisfactory to Buyer.

            (g) Financial Statements. Seller will provide, at Seller's sole cost
and expense, certified financial statements of Seller, if and as required by the
rules and regulations of the Securities Exchange Act of 1934 applicable to
Buyer. Buyer and Seller agree to share the cost and expense of such financial
statements which may be required for Guard-Tech, Inc., a Michigan corporation.

7.2 Conditions Precedent to the Obligation of the Seller to Close. The
obligations of Seller to effect the Closing shall be subject to the following
conditions, except to the extent waived in writing by Seller:

            (a) Representations and Warranties and Covenants of Buyer. The
representations and warranties of Buyer herein contained shall be true in all
material respects at the Closing Date with the same effect as though made at
such time. Buyer shall have performed all obligations and complied with all
Covenants and conditions required by this Agreement to be performed or complied
with by it at or prior to the Closing Date.

            (b) No Orders: Legal Proceedings. No Law or Order shall have been
enacted, entered, issued, promulgated or enforced by any Governmental Entity
that prohibits or restricts or would (if successful) prohibit or restrict the
transactions contemplated by this Agreement. No Governmental Entity shall have
notified any party to this Agreement that consummation of the transactions
contemplated by this Agreement would constitute a violation of any Law of any
jurisdiction and/or that it intends to commence proceedings to restrain or
prohibit such transactions or force divestiture or rescission, unless such
Governmental Entity shall have withdrawn such notice and abandoned any such
proceedings prior to the time that otherwise would have been the Closing Date,
unless nationally recognized counsel known to have expertise as to such matters
on behalf of the party against whom such action or proceeding was or would be
instituted renders to the parties a favorable opinion that such action or
proceeding is or would be without merit.

            (c) Legal Opinion. Seller shall have received a legal opinion from
counsel to Buyer in form and substance satisfactory to Seller.

            (d) No Adverse Fact. No fact, event, circumstance or condition that
would be expected to have a material adverse effect on Buyer shall have occurred
following the date hereof and be continuing.


                                       23
<PAGE>

            (e) Employment Agreement. HealthLink, Ltd. shall have entered into
an Employment Agreement with an individual to manage the operations of
HealthLink, which Agreement is reasonably satisfactory to Seller.

            (f) Warrant Agreement. Buyer shall have executed and delivered to
Seller, within forty-eight (48) hours after the Closing, the Warrant Agreement.

                                    ARTICLE 8
                           TERMINATION OF OBLIGATIONS;
                              SURVIVAL OF COVENANTS

8.1 Termination of Agreement. If all of the conditions to Closing have not been
satisfied, waived or otherwise extended, this Agreement and the transactions
contemplated by this Agreement shall terminate at the close of business on the
date (the "Termination Date") which is the later of: (i) following March 31,
1997, or (ii) such later date as shall be mutually agreed to in writing by Buyer
and Seller. Termination prior to the Closing may occur only by:

            (a) Mutual Consent. By mutual consent in writing of Buyer and
Seller.

            (b) Conditions to Buyer's Performance Not Met. By Buyer by written
notice to Seller if any event occurs that would render impossible the
satisfaction, on or before the day then reasonably estimated by Buyer and Seller
to be the Termination Date, of one or more conditions to the obligations of
Buyer to consummate the transactions contemplated by this Agreement.

            (c) Conditions to Seller's Performance Not Met. By Seller by written
notice to Buyer if any event occurs that would render impossible the
satisfaction, on or before the day then reasonably estimated by Buyer and Seller
to be the Termination Date, of one or more conditions to the obligation of
Seller to consummate the transactions contemplated by this Agreement.

            (d) Material Breach. By Buyer or Seller if there has been a material
misrepresentation or material breach on the part of the other party in its
representations, warranties and covenants set forth herein, which, if curable,
has not been cured within ten (10) business days after receipt of notice from
Buyer or Seller of its intention to terminate if such misrepresentation or
breach continues.

8.2 Effect of Termination. If this Agreement shall be terminated pursuant to
Article 8, all further obligations of the parties under this Agreement shall
terminate without further liability of any party to the other; provided however,
that the obligations of the parties contained in Section 10.10 shall survive any
such termination. Except as provided in this Section 8.2, a termination under
Section 8.1 shall not relieve any party of any liability for any intentional
breach of, or for any intentional misrepresentation under, this Agreement or be
deemed to constitute a waiver of any available remedy (including specific
performance if available) for any such intentional breach or misrepresentation.


                                       24
<PAGE>

                                    ARTICLE 9
                                 INDEMNIFICATION

9.1 Obligations of the Seller. The Seller and Guard-Tech Industries, Inc., a
Michigan corporation, predecessor in interest to Seller, jointly and severally
agree to indemnify and hold harmless Buyer and its Affiliates and the respective
directors, managers, officers, employees, agents and assigns of each from and
against any and all Losses incurred directly or indirectly by them as a result
of, or directly or indirectly based upon or arising from:

            (a) any inaccuracy in or breach or nonperformance of any of the
representations, warranties, covenants or agreements made by the Seller in or
pursuant to this Agreement, as qualified by the matters set forth in the
Schedules of this Agreement; or

            (b) any Tax liabilities attributable to the transfer and
contribution of the Assets to Buyer or the Company.

            (c) any claims, judgments, losses, liabilities, damages and expenses
(including attorney's fees) arising from or otherwise relating to employment or
other labor matters, including any unfair labor practice charges and/or union
grievances, whether currently pending or asserted in the future, arising out of
or otherwise relating to any action or breach of duty in connection with the
operation of the Business on or before the Contribution Date or with the
consummation of the transactions contemplated by this Agreement (collectively,
"Labor Matters");

            (d) any liabilities, losses, payments, sureties, guaranties, bonds
or escrows arising with respect to any of Seller's benefit plans, agreements,
arrangements or practices (collectively, "ERISA Matters"); or

            (e) any loss arising from the operation of the Assets or the
Business for the period up to and including the Closing Date.

9.2 Obligations of Buyer. Buyer agrees to indemnify and hold harmless the
Seller, their Affiliates and their respective partners, directors, officers,
employees, agents and assigns from and against any and all Losses incurred
directly or indirectly by them as a result of, or directly or indirectly based
upon or arising from, any inaccuracy in or breach or nonperformance of any of
the representations, warranties, covenants or agreements made by Buyer in or
pursuant to this Agreement.

9.3 Procedure.

            (a) Notice. If any party becomes aware of any fact, circumstance or
event (including without limitation any Action asserted or threatened by a third
party or any request to waive any applicable statute of limitations) that might
reasonably be expected to result in an Indemnifiable Claim with respect to that
party (an "Indemnified Party"), such


                                       25
<PAGE>

Indemnified Party shall give prompt written notice to the party that would be
required to provide indemnification (the "Indemnifying Party") of the nature of
the fact, circumstance or event and the amount believed to be involved.
Notwithstanding the foregoing, the rights of any Indemnified Party to be
indemnified in respect of any Indemnifiable Claim resulting from the assertion
of liability by any third party shall not be adversely affected by the
Indemnified Party's failure to give or delay in giving notice unless such
failure or delay was intentional or unless (and then only to the extent that)
the Indemnifying Party is materially prejudiced thereby.

            (b) Defense. If any Action that might reasonably be expected to
result in an Indemnifiable Claim is asserted or threatened by a third party
against any Indemnified Party, the Indemnifying Party may elect to control the
defense thereof with experienced counsel reasonably satisfactory to the
Indemnified Party. Notwithstanding the foregoing, if the Indemnifying Party,
within fifteen (15) days after receipt of a notice of such Action fails to give
written notice to the Indemnified Party that the Indemnifying Party shall
undertake the defense thereof or thereafter fails to timely assume such defense,
then the Indemnified Party shall have the right to defend, compromise or settle
the Action for the account of the Indemnifying Party. An assertion by the
Indemnifying Party of a reservation of rights with respect to such Action shall
not constitute a failure to give written notice that it shall undertake such
defense. If, after the Indemnifying Party has undertaken the defense of the
Action, the Indemnified Party reasonably believes (and gives notice thereof to
the Indemnifying Party) that an Indemnifiable Claim may materially adversely
affect the business or operations of the Indemnified Party, then the Indemnified
Party shall have the right to participate in the defense of the Action at its
own expense, subject to the reasonable direction of the other party. Each of the
Indemnifying Party and the Indemnified Party shall give all reasonable
assistance to the other party in connection therewith. In any case, the
Indemnified Party shall, subject to Section 10.10, make available to the
Indemnifying Party and its attorneys, accountants, employees, agents, advisors
and consultants, at reasonable times during normal business hours, all books,
records, documents, employees, agents, advisors and consultants under its
control and relating to such Action or such other matter as to which the
Indemnified Party is or was required to give notice. The party having control of
the defense of an Action shall notify the other party of every proposal, oral or
written, for settlement, which it receives or makes.

            (c) Settlement Limitations. Notwithstanding anything in this Article
9 to the contrary, the Indemnifying Party shall not, without the written consent
of the Indemnified Party, settle or compromise any threatened or pending Action
on behalf of the Indemnified Party or permit a default or consent to entry of
any judgment in respect thereof unless such settlement, compromise or consent
includes, as an unconditional term thereof, the giving by the claimant to the
Indemnified Party of a release from all liability in respect of such Action.
Except in the circumstances described in the preceding sentence, if a settlement
offer is made by the applicable third-party claimant, the Indemnifying Party
notifies the Indemnified Party in writing of the Indemnifying Party's
willingness to unconditionally accept the settlement offer and pay the amount
called for by such offer, and the Indemnified Party declines to accept such
offer, the Indemnified Party may continue to contest such Action, free of any
participation by the Indemnifying Party, and the amount of any ultimate
liability


                                       26
<PAGE>

with respect to any Indemnifiable Claim arising therefrom that the Indemnifying
Party has an obligation to pay hereunder shall be limited to the amount of the
settlement offer that the Indemnified Party declined to accept plus the fees and
expenses, including legal, accounting and other professional fees and expenses,
of the Indemnified Party relating to such Indemnifiable Claim incurred through
the date of its rejection of the settlement offer and to which the Indemnified
Party would otherwise be entitled hereunder. If a settlement offer solely for
money damages is made by the applicable third-party claimant, the Indemnified
Party notifies the Indemnifying Party in writing of its willingness to
unconditionally accept the settlement offer, the Indemnifying Party has not
reserved its rights to assert that any Loss of the Indemnified Party resulting
from such Action is not an Indemnifiable Claim, and the Indemnifying Party
declines to accept and pay the amount called for by such offer, the Indemnifying
Party may continue to contest such Action at its own expense. The provisions of
this Article 9 are subject to the rights of any Indemnified Party's insurer that
may be defending any such claim. If the Indemnifying Party makes any payment
hereunder, the Indemnifying Party shall be subrogated, to the extent of such
payment, to all rights and remedies of the Indemnified Party to any insurance
benefits or other claims of the Indemnified Party with respect to such Claim.
Nothing in this Article 9 shall be deemed to obligate any person to maintain any
insurance or to pursue any claim against any insurer or third party.

            (d) Fees and Expenses. Provided that the Indemnifying Party has
timely and properly undertaken its duties of defense and indemnity, the fees and
expenses of the Indemnified Party relating to such Indemnifiable Claim,
including legal, accounting, consultant, expert, witness, employee, officer and
director fees and expenses shall be borne by the Indemnified Party.

            (e) Limitations on Indemnification. Notwithstanding anything 
herein to the contrary, no claim for indemnification hereunder may be 
asserted by any indemnified third party unless such claim is first asserted 
on or before the first (1st) anniversary of the Closing Date. The 
indemnification provided for in this Section 9 shall not apply unless and 
until the aggregate Indemnifiable Claims for which one or more of the 
Indemnified Parties seeks indemnification hereunder exceeds an aggregate of 
$50,000.00 (the "Basket"), in which event the indemnification shall include 
all Indemnifiable Claims in excess of the Basket. In addition, the maximum 
liability of Seller to Indemnified Parties under this Section 9 for all 
claims of indemnification shall not exceed $3,300,000.00.

9.4 Exclusive Remedy; Survival. The indemnification provided in this Article 9
shall constitute the exclusive remedy (except for equitable remedies) of the
parties hereto and their respective directors, officers, employees, Affiliates,
agents and assigns from and against any and all Losses asserted against,
resulting to, imposed upon or incurred or suffered by, any of them, directly or
indirectly, as a result of, or based upon or arising from, the breach of any
representation or warranty or the nonfulfillment of any agreement or covenant in
or pursuant to this Agreement or any other agreement, document or instrument
required hereunder or pursuant to any applicable statute, rule or regulation.
The provisions of this Article 9 shall survive indefinitely.


                                       27
<PAGE>

                                   ARTICLE 10
                                     GENERAL

10.1 Amendments; Waivers. This Agreement and any Exhibits attached hereto may be
amended only by agreement in writing of all parties. No waiver of any provision
or consent to any exception to the terms of this Agreement shall be effective
unless in writing and signed by the party to be bound and then only to the
specific purpose, extent and instance so provided.

10.2 Exhibits; Integration. Each Exhibit delivered pursuant to the terms of this
Agreement shall be in writing and shall constitute a part of the Agreement,
although Exhibits may be delivered separately to each party (after being
initialed by the delivering party) in addition to being attached to this
Agreement. This Agreement, together with such Exhibits, constitutes the entire
agreement among the parties pertaining to the subject matter hereof and
supersedes all prior agreements and understandings of the parties in connection
therewith.

10.3 Best Efforts; Further Assurances. Each party will use its best efforts to
cause all conditions to its obligations hereunder to be timely satisfied and to
perform and fulfill all obligations on its part to be performed and fulfilled
under this Agreement, to the end that the transactions contemplated by this
Agreement shall be effectuated substantially in accordance with its terms as
reasonably practicable. Each party shall execute and deliver both before and
after the Closing such further certificates, agreements and other documents and
take such other actions as the other party may reasonably request to consummate
or implement the transactions contemplated hereby or to evidence such events or
matters. As used in this Agreement, the term "best efforts" shall not include
efforts that require the performing party (a) to do any act that is unreasonable
under the circumstances, (b) to amend or waive any rights under this Agreement,
or (c) to incur or expend any funds other than reasonable out-of-pocket expenses
incurred in satisfying its obligations hereunder, including the fees, expenses
and disbursements of its accountants, actuaries, counsel and other
professionals.

10.4 Choice of Law. This Agreement and the legal relations between the parties
shall be governed by and construed in accordance with the laws of the State of
Nevada without regard to conflicts of law doctrines, except to the extent that
certain matters are preempted by federal law or are governed by the law of the
jurisdiction of organization of the respective parties.

10.5 Arbitration. Any dispute arising out of or relating to this Agreement that
cannot be settled by good faith negotiation between the parties will be
submitted to final and binding arbitration before a retired judge pursuant to
the commercial rules of the American Arbitration Association.


                                       28
<PAGE>

10.6 No Assignment. Neither this Agreement nor any rights or obligations under
it are assignable without the prior written consent of Buyer and Seller.

10.7 Headings. The descriptive headings of the Articles, Sections and
subsections of this Agreement are for convenience only and do not constitute a
part of this Agreement.

10.8 Counterparts. This Agreement and any other agreement (or document)
delivered pursuant hereto may be executed in one or more counterparts and by
different parties in separate counterparts. All of such counterparts shall
constitute one and the same agreement (or other document) and shall become
effective when one or more counterparts of this Agreement have been signed by
each party and delivered to the other party.

10.9 Publicity and Reports. Seller and Buyer shall coordinate all publicity
relating to the transactions contemplated by this Agreement, and no party shall
issue any press release, publicity statement or other public notice relating to
this Agreement, or the transactions contemplated by this Agreement, without
obtaining the prior consent of the other party.

10.10 Confidentiality. All information disclosed by any party (or its
representatives) whether before or after the date hereof, in connection with the
transactions contemplated by, or the discussions and negotiations preceding,
this Agreement to any other party (or its representatives) shall be kept in
confidence by such other party and its representatives and shall not be
disclosed to or used by any Person. If this Agreement is terminated, each party
shall use all reasonable efforts to return upon written request from the other
party all documents received by it or its representatives from such other party
and not retain any copies.

10.11 Notices. Any notice or other communication hereunder must be given in
writing and either (a) delivered in person, (b) transmitted by telex, telefax or
telecopy mechanism, provided that any notice so given is also mailed as provided
in clause (c), or (c) mailed, postage prepaid, receipt requested, as follows:

            If to Seller, addressed to:

            BKR, Inc.
            7944 East Beck Lane, Suite 210
            Scottsdale, Arizona 85260

            With copies to:

            Loyd E. Wright, Esq.


                                       29
<PAGE>

            19200 Von Karman Avenue, Suite 870
            Irvine, CA 92715

            If to Buyer, addressed to:

            Richard M. Brooks
            Response USA, Inc.
            11-H Princess Road
            Lawrenceville, New Jersey 08648

            and to:

            Tom Rose, Esq.
            Schneck, Weltman, Hashmall & Mischel, LLP
            1285 Avenue of Americas, 3rd Floor
            New York, NY 10019

or to such other address or to such other person as either party shall have last
designated by such notice to the other party. Each such notice or other
communication shall be effective (i) if given by telecommunication, when
transmitted to the applicable number and an appropriate answer back is received,
(ii) if given by mail, three days after such communication is deposited in the
mails with first class postage prepaid, addressed as aforesaid, or (iii) if
given by any other means, when actually received at such address.

10.12 Expenses. Seller and Buyer shall each pay their own expenses incident to
the negotiation, preparation and performance of this Agreement and the
transactions contemplated hereby, including the fees, expenses and disbursements
of their respective accountants and attorneys.

10.13 Waiver. No failure to exercise or delay in exercising any right hereunder
on the part of any party shall be deemed a waiver thereof, nor shall any single
or partial exercise preclude any further or other exercise of such or any other
right.

10.14 Representation By Counsel; Interpretation. Seller and Buyer each
acknowledge that each party to this Agreement has been represented by counsel in
connection with this Agreement and the transactions contemplated by this
Agreement. Accordingly, any rule of Law, or any legal decision that would
require interpretation of any claimed ambiguities in this Agreement against the
party that drafted it has no application and is expressly waived. The provisions
of this Agreement shall be interpreted in a reasonable manner to effect the
intent of Buyer and Seller.

10.15 Specific Performance. Seller acknowledges that, in view of the uniqueness
of the Business and the transactions contemplated by this Agreement, Buyer would
not have an adequate remedy at law for money damages in the event that this
Agreement has not been performed in accordance with its terms and therefore
agrees that Buyer shall be 


                                       30
<PAGE>

entitled to specific performance of the terms hereof in addition to any other
remedy to which it may be entitled, at law or in equity.

10.16 Severability. If any provision of this Agreement is held invalid or
unenforceable by any court of final jurisdiction, it is the intent of the
parties that all remaining provisions of this Agreement be construed to remain
fully valid, enforceable and binding on the parties.

                        [SIGNATURES CONTAINED ON PAGE 32]

IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to be
executed by its duly authorized officers, if any, all as of the day and year
first written above.

            "SELLER"                                   "BUYER"              
                                                                            
           BKR, INC.,                            RESPONSE USA, INC.,        
      a Nevada corporation                      a Delaware corporation      


By:                                       By:                               
     ---------------------------               ---------------------------  
     BERT BEDROSIAN,                           RICHARD M. BROOKS,           
     President                                 President                    


By:                                       By:                               
     ---------------------------               ---------------------------  
     ROBIN BEDROSIAN,                          RONALD FELDMAN,              
     Secretary                                 Chief Operating Officer      
                                                                            
                                                                            
                                                  HEALTHLINK, LTD.,         
                                           a Nevada limited liability company
                                                                            
                                                                            
                                          By:                               
                                               ---------------------------  
                                               BERT BEDROSIAN,              
                                               President                    
                                                                            
                                                                            
                                          By:                               
                                               ---------------------------  
                                               KENNETH W. STICKNEY,         
                                               Chairman                     
                                                                            
                                                                            
                                          By:                               
                                               ---------------------------  
                                               RICHARD M. BROOKS,           
                                               Chief Executive Officer      


                                       31
<PAGE>

By:
     ---------------------------
     RONALD FELDMAN,
     Vice Chairman

[SIGNATURES CONTINUED ON PAGE 33]

   GUARD-TECH INDUSTRIES, INC.,
      a Michigan Corporation


By:
     ---------------------------
     BERT BEDROSIAN
     President


                                       32