Document:

BARRINGER TECHNOLOGIES INC.

              AMENDED AND RESTATED 1997 STOCK COMPENSATION PROGRAM

     A.  Purposes.  This  Barringer  Technologies  Inc. 1997 Stock  Compensation
Program  (the  "Program")  is  intended to promote the  interests  of  Barringer
Technologies  Inc. (the  "Company"),  its direct and indirect present and future
subsidiaries (the "Subsidiaries"),  and its stockholders,  by providing eligible
persons with the opportunity to acquire a proprietary  interest,  or to increase
their  proprietary  interest  in the  Company as an  incentive  to remain in the
service of the Company.

     B. Elements of the Program.  In order to maintain  flexibility in the award
of benefits, the Program is comprised of six parts -- the Incentive Stock Option
Plan  ("Incentive  Plan"),  the  Supplemental  Stock Option Plan  ("Supplemental
Plan"), the Stock  Appreciation  Rights Plan ("SAR Plan"), the Performance Share
Plan  ("Performance  Share Plan"), the Stock Bonus Plan ("Stock Bonus Plan") and
the Independent Director Plan (the "Independent  Director Plan").  Copies of the
Incentive Plan, Supplemental Plan, SAR Plan, Performance Share Plan, Stock Bonus
Plan and Independent  Director Plan are attached hereto as Parts I, II, III, IV,
V, and VI, respectively, and are collectively referred to herein as the "Plans."
The grant of an option,  stock appreciation  right,  performance share, or stock
bonus under one of the Plans shall not be  construed to prohibit the grant of an
option, stock appreciation right, performance share, or stock bonus under any of
the other Plans.

     C.  Applicability  of  General  Provisions.  Unless  any Plan  specifically
indicates to the contrary,  all Plans shall be subject to the General Provisions
of the Program set forth below under the heading  "General  Provisions  of Stock
Compensation Program."

<PAGE>

                GENERAL PROVISIONS OF STOCK COMPENSATION PROGRAM

     Article 1.  Administration.  The Program shall be administered by the Board
of  Directors  of the Company  (the "Board of  Directors")  or any duly  created
committee appointed by the Board of Directors and charged with administration of
the Program.  The Board of  Directors,  or any duly  appointed  committee,  when
acting to administer the Program, is referred to as the "Program Administrator."
Any action of the Program  Administrator  shall be taken by  majority  vote at a
meeting or by unanimous  written  consent of all members  without a meeting.  No
Program  Administrator  or member of the Board of Directors  shall be liable for
any action or  determination  made in good faith with  respect to the Program or
with respect to any option, stock appreciation right performance share, or stock
bonus granted  thereunder.  Notwithstanding  any other provision of the Program,
administration  of the  Independent  Director Plan, set forth as Part VI of this
Program, shall be self-executing in accordance with the terms of the Independent
Director Plan,  and no Program  Administrator  shall exercise any  discretionary
functions  with respect to option  grants made under such  Independent  Director
Plan.

     Article  2.  Authority  of  Program  Administrator.  Subject  to the  other
provisions  of this  Program,  and with a view to  effecting  its  purpose,  the
Program  Administrator  shall have the authority:  (a) to construe and interpret
the Program;  (b) to define the terms used herein; (c) to prescribe,  amend, and
rescind rules and regulations  relating to the Program; (d) to determine to whom
options, stock appreciation rights,  performance shares, and stock bonuses shall
be  granted  under  the  Program;  (e) to  determine  the time or times at which
options,  stock appreciation rights,  performance shares, or stock bonuses shall
be granted under the Program;  (f) to determine the number of shares  subject to
any discretionary  option or stock  appreciation right under the Program and the
number of shares to be awarded as performance  shares or stock bonuses under the
Program,  as well as the option  price and the  duration of each  option,  stock
appreciation  right  performance  share and stock bonus, and any other terms and
conditions of options, stock appreciation rights,  performance shares, and stock
bonuses; and (g) to make any other determinations necessary or advisable for the
administration  of the Program and to do everything  necessary or appropriate to
administer the Program.  All decisions,  determinations and interpretations made
by the Program Administrator shall be binding and conclusive on all participants
in the Program and on their legal representatives, heirs, and beneficiaries.

     Article 3. Maximum  Number of Shares  Subject to the  Program.  The maximum
aggregate  number of shares of the Company's  Common  Stock,  par value $.O1 per
share ("Common Stock"), available pursuant to the Program, subject to adjustment
as provided in Article 6 hereof,  shall be 1,100,000  shares of Common Stock. Up
to

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<PAGE>

1,000,000  of such  shares  may be  issued  under  any Plan  that is part of the
Program  other than the  Independent  Director  Plan. Up to 100,00 shares may be
issued  under the  Independent  Director  Plan.  If any of the  options or stock
appreciation rights granted under the Program expire or terminate for any reason
before they have been  exercised in full,  the unissued  shares subject to those
expired or terminated  options and/or stock  appreciation  rights shall again be
available  for  the  purposes  of the  Program.  If the  performance  objectives
associated with the grant of any performance  shares are not achieved within the
specified  performance  objective  period,  or if the  performance  share  grant
terminates for any reason before the  performance  objective  date arrives,  the
shares of Common Stock  associated with such  performance  shares shall again be
available for the purposes of the Program.  If any stock provided to a recipient
as a stock bonus is  forfeited,  the shares of Common Stock so  forfeited  shall
again be  available  for  purposes of the  Program.  Any shares of Common  Stock
delivered  pursuant to the Program may  consist,  in whole or in part,  of newly
issued shares or treasury shares.

     Article 4. Eligibility and Participation.  All employees of the Company and
the  Subsidiaries,  whether or not  officers or  directors of the Company or the
Subsidiaries,  all consultants of the Company and the  Subsidiaries,  whether or
not directors of the Company or the Subsidiaries, and all non-employee directors
of the Company  shall be  eligible  to  participate  in the  Program;  provided,
however,  that  (i)  only  employees  of the  Company  or the  Subsidiaries  may
participate  in the  Incentive  Plan,  and (ii) only  Independent  Directors (as
defined in the  Independent  Director Plan) may  participate in the  Independent
Director  Plan. The term  "employee"  shall include any person who has agreed to
become an employee and the term  "consultant"  shall  include any person who has
agreed to become a consultant.

     Article 5.  Effective  Date and Term of Program.  The Program  shall become
effective  upon its adoption by the Board of Directors and the  stockholders  of
the Company;  provided,  however,  that awards may be granted  under the Program
prior to  obtaining  stockholder  approval of the Program so long as such awards
are  contingent  upon such  stockholder  approval  being obtained and may not be
exercised  prior to such  approval.  The Program shall  continue in effect for a
term of ten years from the date the Program is adopted by the Board of Directors
unless sooner terminated by the Board of Directors.

     Article 6. Adjustments. Subject to the provisions of Articles 18 and 19, in
the  event  that the  outstanding  shares  of Common  Stock of the  Company  are
hereafter  increased,  decreased,  changed  into,  or exchanged  for a different
number  or  kind  of  shares  or  securities   through  merger,   consolidation,
combination,   exchange  of  shares,  other  reorganization,   recapitalization,
reclassification,  stock  dividend,  stock  split  or  reverse  stock  split  an
appropriate  and   proportionate   adjustment  shall  be  made  by  the  Program
Administrator in the maximum number and kind of shares as to which

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options,  stock appreciation rights, and performance shares may be granted under
the Program.  A corresponding  adjustment  changing the number or kind of shares
allocated to unexercised options, stock appreciation rights,  performance shares
and stock  bonuses or portions  thereof,  which shall have been granted prior to
any such change,  shall  likewise be made.  Any such  adjustment in  outstanding
options  and  stock  appreciation  rights  shall be made  without  change in the
aggregate purchase price applicable to the unexercised  portion of the option or
stock  appreciation  right but with a corresponding  adjustment in the price for
each  share  or  other  unit of any  security  covered  by the  option  or stock
appreciation  right.  In making any  adjustment  pursuant to this Article 6, any
fractional shares shall be disregarded.

     Article  7.  Termination  and  Amendment  of  Program.  No  options,  stock
appreciation rights,  performance shares or stock bonuses shall be granted under
the Program after the termination of the Program. The Program  Administrator may
at any time  amend or revise  the  terms of the  Program  or of any  outstanding
option,  stock  appreciation right performance share or stock bonus issued under
the Program,  provided,  however,  that any  stockholder  approval  necessary or
desirable in order to comply with Rule 16b-3 under the  Securities  Exchange Act
of 1934, as amended,  or with Section 422 of the Internal  Revenue Code of 1986,
as amended (the "Code") or other  applicable law or regulation shall be obtained
prior to the  effectiveness  of any such  amendment or revision.  No  amendment,
suspension or termination  of the Program or of any  outstanding  option,  stock
appreciation  right performance share or stock bonus shall,  without the consent
of the person who has received an option, stock appreciation right,  performance
share or stock bonus,  impair any of that person's  rights or obligations  under
any option,  stock  appreciation  right performance share or stock bonus granted
under the Program prior to such  amendment,  suspension or  termination  without
that person's written consent.

     Article 8.  Privileges of Stock Ownership  Notwithstanding  the exercise of
any options  granted  pursuant to the terms of the Program or the achievement of
any performance objective specified in any performance share granted pursuant to
the terms of the Program,  no person shall have any of the rights or  privileges
of a stockholder  of the Company in respect of any shares of stock issuable upon
the  exercise  of his or her  option or  achievement  of his or her  performance
objective  until  certificates  representing  the  shares  have been  issued and
delivered.  No adjustment shall be made for dividends or any other distributions
for which the record date is prior to the date on which any stock certificate is
issued pursuant to the Program.

     Article 9. Reservation of Shares of Common Stock.  The Company,  during the
term of the Program, will at all times reserve and keep available such number of
shares of its Common Stock as shall be sufficient to satisfy the requirements of
the Program.
                                      -4-
<PAGE>

     Article 10. Tax Withholding. The exercise of any option, stock appreciation
right or performance  share, and the grant of any stock bonus under the Program,
are subject to the condition that if at any time the Company shall determine, in
its discretion,  that the  satisfaction of withholding tax or other  withholding
liabilities  under any state or  federal  law is  necessary  or  desirable  as a
condition  of, or in any  connection  with,  such  exercise  or the  delivery or
purchase of shares  pursuant  thereto,  then,  in such event the exercise of the
option, stock appreciation right or performance share or the grant of such stock
bonus or the elimination of the risk of forfeiture relating thereto shall not be
effective unless such  withholding tax or other  withholding  liabilities  shall
have been satisfied in a manner acceptable to the Company.

     Article 11. Employment;  Service as Director or Consultant.  Nothing in the
Program gives to any person any right to continued employment by or service as a
director of or  consultant to the Company or the  Subsidiaries  or limits in any
way the right of the Company, the Subsidiaries or the Company's  stockholders at
any time to terminate or alter the terms of that employment or service.

     Article 12. Investment Letter; Restrictions or Obligation of the Company to
Issue Securities; Restrictive Legend. Any person acquiring Common Stock or other
securities of the Company pursuant to the Program,  as a condition  precedent to
receiving the shares of Common Stock or other securities, may be required by the
Program  Administrator to submit a letter to the Company stating that the shares
of Common Stock or other  securities  are being  acquired for investment and not
with a view to the distribution  thereof.  The Company shall not be obligated to
sell or issue any shares of Common  Stock or other  securities  pursuant  to the
Program unless, on the date of sale and issuance  thereof,  the shares of Common
Stock or other  securities  are either  registered  under the  Securities Act of
1933,  as amended,  and all  applicable  state  securities  laws, or exempt from
registration thereunder.  All shares of Common Stock and other securities issued
pursuant  to  the  Program  shall  bear a  restrictive  legend  summarizing  the
restrictions on transferability  applicable thereto,  including those imposed by
federal and state securities laws.

     Article 13. Covenant Against Competition.  The Program  Administrator shall
have the  right to  condition  the award to an  employee  of any  option,  stock
appreciation  right performance share, or stock bonus under the Program upon the
recipient's execution and delivery to the Company of an agreement not to compete
with  the  Company  during  the  recipient's  employment  and  for  such  period
thereafter as shall be determined  by the Program  Administrator.  Such covenant
against   competition   shall  be  in  a  form   satisfactory   to  the  Program
Administrator.

     Article 14. Rights Upon  Termination.  If a recipient of an award under the
Program  ceases to be a  director  of the  Company  or to be  employed  by or to
provide  consulting  services to the Company or any Subsidiary (or a corporation
or a parent or

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<PAGE>

subsidiary  of  such  corporation  issuing  or  assuming  a  stock  option  in a
transaction to which Section  424(a) of the Code  applies),  as the case may be,
for any reason other than death or disability,  then, unless any other provision
of the Program provides for earlier termination:

          (a) subject to Article 21, all  options or stock  appreciation  rights
     (other than Naked  Rights)  shall  terminate  immediately  in the event the
     recipient's  service or employment is terminated for cause and in all other
     circumstances  may be exercised,  to the extent  exercisable on the date of
     termination,  until (i) three months after the date of  termination  in the
     case of grants under the Independent  Director Plan, and (ii) 30 days after
     the date of termination  in all other cases;  provided,  however,  that the
     Program  Administrator may, in its discretion,  allow such options or stock
     appreciation  rights  (other  than Naked  Rights) to be  exercised  (to the
     extent  exercisable  on the date of  termination)  at any time within three
     months after the date of termination;

          (b)  subject to  Section  5(b) of the SAR Plan,  all Naked  Rights not
     payable  on  the  date  of  termination  of  employment   shall   terminate
     immediately;

          (c) all performance  share awards shall terminate  immediately  unless
     the performance objectives have been achieved and the performance objective
     period has expired; and

          (d) all  stock  bonuses  which  are  subject  to  forfeiture  shall be
     forfeited as of the date of termination.

     Article 15. Rights Upon Disability. If a recipient becomes disabled, within
the meaning of Section  22(e)(3) of the Code, while serving as a director of the
Company or while employed by or rendering  consulting services to the Company or
any Subsidiary  (or a corporation or a parent or subsidiary of such  corporation
issuing or assuming a stock option in a transaction  to which Section  424(a) of
the Code applies),  as the case may be, then,  unless any other provision of the
Program provides for earlier termination:

          (a) subject to Article 21, all  options or stock  appreciation  rights
     (other than Naked Rights) may be exercised,  to the extent  exercisable  on
     the date of  termination,  at any time  within  one year  after the date of
     termination due to disability;

          (b) all Naked Rights shall be fully paid by the Company as of the date
     of disability;

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<PAGE>

          (c) all performance share awards for which all performance  objectives
     have been  achieved  (other  than  continued  employment  or service on the
     Vesting Date) shall be paid in full by the Company;  all other  performance
     shares shall terminate immediately; and

          (d) all  stock  bonuses  which  are  subject  to  forfeiture  shall be
     forfeited as of the date of disability.

     Article 16.  Rights  Upon Death of  Recipient.  If a  recipient  dies while
serving  as a  director  of  the  Company  or  while  employed  by or  rendering
consulting  services to the Company or any  Subsidiary  (or a  corporation  or a
parent or subsidiary of such corporation issuing or assuming a stock option in a
transaction to which Section  424(a) of the Code  applies),  as the case may be,
then,   unless  any  other  provision  of  the  Program   provides  for  earlier
termination:

          (a) subject to Article 21, all  options or stock  appreciation  rights
     (other than Naked Rights) may be exercised by the person or persons to whom
     the  recipient's  rights  shall pass by will or by the laws of descent  and
     distribution,  to the extent  exercisable on the date of death, at any time
     within one year after the date of death,  unless any other provision of the
     Program provides for earlier termination;

          (b) all Naked Rights shall be fully paid by the Company as of the date
     of death;

          (c) all performance share awards for which all performance  objectives
     have been  achieved  (other  than  continued  employment  or service on the
     Vesting Date) shall be paid in full by the Company;  all other  performance
     share awards shall terminate immediately; and

          (d) all  stock  bonuses  which  are  subject  to  forfeiture  shall be
     forfeited as of the date of death.

     Article 17. Transferability.  Options and stock appreciation rights granted
under the  Program may not be sold,  pledged,  assigned  or  transferred  in any
manner by the  recipient  otherwise  than by will or by the laws of descent  and
distribution  and shall be exercisable (a) during the recipient's  lifetime only
by the recipient  and (b) after the  recipient's  death only by the  recipient's
executor,  administrator or personal representative,  provided, however that (i)
the Program  Administrator  may permit the  recipient of a  non-incentive  stock
option under the Supplemental  Plan to transfer the option to a family member or
a trust created for the benefit of family members and (ii) recipients of options
under the Independent Director Plan may transfer such options to a family member
or a trust created for the benefit of

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<PAGE>

family  members.  In the case of such a transfer,  the  transferee's  rights and
obligations  with respect to the option shall be  determined by reference to the
recipient and the recipient's  rights and obligations with respect to the option
had no transfer been made.  The  recipient  shall remain  obligated  pursuant to
Articles 10 and 12 hereunder if required by applicable  law.  Common Stock which
represents  either  performance  shares prior to the  satisfaction of the stated
performance  objectives and the expiration of the stated  performance  objective
periods or stock bonus shares prior to the time that they are no longer  subject
to risk of forfeiture may not be sold,  pledged,  assigned or transferred in any
manner.

     Article  18  Change  in  Control.  All  options  granted  pursuant  to  the
Independent  Director  Plan  shall  become  immediately   exercisable  upon  the
occurrence  of a Change in Control  Event.  With  respect to other  awards,  the
Program  Administrator  shall have the authority to provide,  either at the time
any option, stock appreciation right performance share or stock bonus is granted
or  thereafter,  that an option or stock  appreciation  right shall become fully
exercisable  upon  the  occurrence  of a  Change  in  Control  Event or that all
restrictions, performance objectives, performance objective periods and risks of
forfeiture  pertaining to a  performance  share or stock bonus award shall lapse
upon the  occurrence  of a Change in Control  Event.  As used in the Program,  a
"Change in Control Event" shall be deemed to have occurred if:

          (a) any person,  firm or corporation  acquires  directly or indirectly
     the  Beneficial  Ownership (as defined in Section  13(d) of the  Securities
     Exchange  Act of 1934,  as amended)  of any voting  security of the Company
     and,  immediately  after such  acquisition,  the  acquirer  has  Beneficial
     Ownership of voting securities representing 50% or more of the total voting
     power of all the then-outstanding voting securities of the Company;

          (b) the  individuals  who (i) as of the effective  date of the Program
     constitute  the  Board  of  Directors  (the  "Original  Directors"),   (ii)
     thereafter  are  elected to the Board of  Directors  and whose  election or
     nomination for election to the Board of Directors was approved by a vote of
     at least 2/3 of the Original Directors then still in office (such Directors
     being called "Additional Original Directors"),  or (iii) are elected to the
     Board of Directors  and whose  election or  nomination  for election to the
     Board of  Directors  was approved by a vote of at least 2/3 of the Original
     Directors and Additional Original Directors then still in office, cease for
     any  reason  to  constitute  a  majority  of the  members  of the  Board of
     Directors;

          (c)  the   stockholders   of  the  Company  shall  approve  a  merger,
     consolidation,  recapitalization,  or  reorganization of the Company or the
     Company shall  consummate any such  transaction if stockholder  approval is
     not sought or obtained,  other than any such transaction which would result
     in

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<PAGE>

     holders of outstanding  voting securities of the Company  immediately prior
     to the transaction having Beneficial Ownership of at least 50% of the total
     voting power  represented by the voting  securities of the surviving entity
     outstanding  immediately after such  transaction,  with the voting power of
     each such continuing holder relative to such other continuing holders being
     not altered substantially in the transaction; or

          (d) the  stockholders  of the Company shall approve a plan of complete
     liquidation  of the Company or an agreement for the sale or  disposition by
     the Company of all or a substantial  portion of the Company's assets (i.e.,
     50% or more in value of the total assets of the Company).

     Article 19. Mandatory  Exercise.  Upon the occurrence of or in anticipation
of a contemplated  Change in Control Event,  the Company may give a holder of an
option or stock  appreciation  right written notice requiring such person either
(a) to exercise within a period of time established by the Company after receipt
of the notice each  option and stock  appreciation  right to the fullest  extent
exercisable at the end of that period,  or (b) to surrender such option or stock
appreciation  right or any  unexercised  portion  thereof.  Any  portion of such
option or stock  appreciation  right  which  shall not have  been  exercised  in
accordance  with the  provisions  of the Program by the end of such period shall
automatically  lapse  irrevocably  and the holder  shall have no further  rights
thereunder.

     Article 20. Method of Exercise. Any holder of an option may exercise his or
her option from time to time by giving  written notice thereof to the Company at
its  principal  office,  together  with payment in full for the shares of Common
Stock to be purchased.  The date of such exercise shall be the date on which the
Company receives such notice. Such notice shall state the number of shares to be
purchased.  The purchase price of any shares  purchased upon the exercise of any
option  granted  pursuant  to the  Program  shall be paid in full at the time of
exercise of the option by certified or bank cashier's check payable to the order
of the  Company or, if  permitted  by the  Program  Administrator,  by shares of
Common Stock which have been held by the optionee for at least six months, or by
a  combination  of  checks  and  such  shares  of  Common  Stock.   The  Program
Administrator may, in its sole discretion,  permit an optionee to make "cashless
exercise"  arrangements,  to the extent  permitted  by  applicable  law, and may
require  optionees  to utilize the services of a single  broker  selected by the
Program Administrator in connection with any cashless exercise. No option may be
exercised  for a  fraction  of a share of Common  Stock.  If any  portion of the
purchase  price is paid in shares of Common Stock,  those shares shall be valued
at their then Fair Market Value as  determined by the Program  Administrator  in
accordance with Section 4 of the Incentive Plan.

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<PAGE>

     Article 21. Limitation. Notwithstanding any other provision of the Program,
(a) no option may be granted  pursuant to the Program  more than ten years after
the date on which the Program was adopted by the Board of Directors, and (b) any
option granted under the Program shall,  by its terms,  not be exercisable  more
than ten  years  after  the date of grant  provided,  however,  that any  option
granted  under  the  Independent  Director  Plan  shall,  by its  terms,  not be
exercisable more than five years after the date of grant.

     Article  22.  Sunday  or  Holiday.  In the  event  that  the  time  for the
performance  of any  action or the  giving of any notice is called for under the
Program  within  a period  of time  which  ends or  falls  on a Sunday  or legal
holiday,  such period  shall be deemed to end or fall on the next day  following
such Sunday or legal holiday which is not a Sunday or legal holiday.

     Article 23.  Governing  Law. The Program shall be governed by and construed
in accordance with the laws of the State of New Jersey.

                                      -10-
<PAGE>

                                     PLAN I

                           BARRINGER TECHNOLOGIES INC.

                           INCENTIVE STOCK OPTION PLAN

     Section 1. General. This Barringer Technologies Inc. Incentive Stock Option
Plan ("Incentive Plan") is Part I of the Company's Program.  The Company intends
that options  granted  pursuant to the  provisions  of the  Incentive  Plan will
qualify and will be identified as "incentive  stock options"  within the meaning
of  Section  422 of the Code.  Unless  any  provision  herein  indicates  to the
contrary,  the Incentive Plan shall be subject to the General  Provisions of the
Program.

     Section  2.  Terms and  Conditions.  The  Program  Administrator  may grant
incentive  stock options to any person  eligible  under Article 4 of the General
Provisions. The terms and conditions of options granted under the Incentive Plan
may  differ  from  one  another  as  the  Program  Administrator  shall,  in its
discretion,  determine,  as long as all options granted under the Incentive Plan
satisfy the requirements of the Incentive Plan.

     Section 3.  Duration  of  Options.  Each  option and all rights  thereunder
granted  pursuant to the terms of the  Incentive  Plan shall  expire on the date
determined  by the  Program  Administrator,  but in no event  shall  any  option
granted  under the  Incentive  Plan expire later than ten years from the date on
which the option is granted.  Notwithstanding the foregoing,  any option granted
under the  Incentive  Plan to any person who owns more than 10% of the  combined
voting power of all classes of stock of the Company or a Subsidiary shall expire
no later than five years from the date on which the option is granted.

     Section 4.  Purchase  Price.  The option  price with  respect to any option
granted  pursuant to the  Incentive  Plan shall not be less than the Fair Market
Value of the  shares on the date of the  grant of the  option;  except  that the
option price with respect to any option  granted  pursuant to the Incentive Plan
to any person who owns more than 10% of the combined voting power of all classes
of stock of the Company  shall not be less than 110% of the Fair Market Value of
the shares on the date the option is granted. "Fair Market Value" shall mean the
fair  market  value of the Common  Stock on the date of grant or other  relevant
date.  If on such date the  Common  Stock is listed  on a stock  exchange  or is
quoted on the automated  quotation system of NASDAQ, the Fair Market Value shall
be the closing sale price (or if such price is  unavailable,  the average of the
high bid price and the low asked  price) on such date.  If no such  closing sale
price or bid and asked  prices are  available,  the Fair  Market  Value shall be
determined  in good  faith  by the  Program  Administrator  in  accordance  with
generally

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<PAGE>

accepted   valuation   principles   and  such  other   factors  as  the  Program
Administrator reasonably deems relevant.

     Section 5. Maximum  Amount of Options in Any Calendar  Year.  The aggregate
Fair Market  Value of the Common  Stock with  respect to which  incentive  stock
options are  exercisable  for the first time by any employee during any calendar
year (under the terms of the Incentive Plan and all incentive stock option plans
of the Company and the Subsidiaries) shall not exceed $100,000.

     Section 6. Exercise of Options.  Unless  otherwise  provided by the Program
Administrator  at the time of grant or unless  the  installment  provisions  set
forth herein are subsequently  accelerated pursuant to Article 18 of the General
Provisions of the Program or otherwise by the Program Administrator with respect
to any one or more previously granted options,  options may only be exercised to
the following extent during the following periods of employment:

Period Following                                   Maximum Percentage of
 Date of Grant                                        Shares Covered by
---------------                                      Option Which May be
                                                         Purchased
                                                         ---------
Less than 12 months                                          0%

12 months or more and less than 24                          25%
months

24 months or more and less than 36 months                   50%

36 months or more and less than 48 months                   75%

48 months or more                                          100%

                                      -12-
<PAGE>

                                     PLAN II

                           BARRINGER TECHNOLOGIES INC.

                         SUPPLEMENTAL STOCK OPTION PLAN

     Section 1. General.  This Barringer  Technologies Inc.  Supplemental  Stock
Option  Plan  ("Supplemental  Plan") is Part II of the  Company's  Program.  Any
option granted pursuant to the Supplemental Plan shall not be an incentive stock
option as defined  in  Section  422 of the Code.  Unless  any  provision  herein
indicates  to the  contrary,  this  Supplemental  Plan  shall be  subject to the
General Provisions of the Program.

     Section  2.  Terms and  Conditions.  The  Program  Administrator  may grant
supplemental stock options to any person eligible under Article 4 of the General
Provisions.  The terms and conditions of options granted under the  Supplemental
Plan may differ  from one  another as the Program  Administrator  shall,  in its
discretion,  determine,  as long as all options  granted under the  Supplemental
Plan satisfy the requirements of the Supplemental Plan.

     Section 3.  Duration  of  Options.  Each  option and all rights  thereunder
granted pursuant to the terms of the Supplemental  Plan shall expire on the date
determined  by the  Program  Administrator,  but in no event  shall  any  option
granted under the Supplemental Plan expire later than ten years from the date on
which the option is granted.

     Section 4.  Purchase  Price.  The option  price with  respect to any option
granted  pursuant to the  Supplemental  Plan shall be  determined by the Program
Administrator at the time of grant.

     Section 5. Exercise of Options.  Unless  otherwise  provided by the Program
Administrator  at the time of grant or unless  the  installment  provisions  set
forth herein are subsequently  accelerated pursuant to Article 18 of the General
Provisions  of the  Program or  otherwise  by the  Program  Administrator,  with
respect  to any one or more  previously  granted  options,  options  may only be
exercised to the following extent during the following  periods of employment or
service:
                                      -13-
<PAGE>

Period Following                                   Maximum Percentage of
 Date of Grant                                        Shares Covered by
---------------                                      Option Which May be
                                                         Purchased
                                                         ---------
Less than 12 months                                          0%

12 months or more and less than 24                          25%
months

24 months or more and less than 36 months                   50%

36 months or more and less than 48 months                   75%

48 months or more                                          100%

                                      -14-
<PAGE>

                                    PLAN III

                           BARRINGER TECHNOLOGIES INC.

                         STOCK APPRECIATION RIGHTS PLAN

     Section 1. General.  This Barringer  Technologies  Inc. Stock  Appreciation
Rights Plan ("SAR Plan") is Part III of the Company's Program.

     Section 2. Terms and Conditions.  The Program Administrator may grant stock
appreciation  rights to any  person  eligible  under  Article  4 of the  General
Provisions.  Stock  appreciation  rights  may be granted  either in tandem  with
incentive stock options or supplemental  stock options as described in Section 4
of the SAR Plan, or as naked stock appreciation rights as described in Section 5
of the SAR Plan.

     Section 3. Mode of Payment. At the discretion of the Program Administrator,
payments to recipients upon exercise of stock appreciation rights may be made in
(a) cash by bank check,  (b) shares of Common  Stock  having a Fair Market Value
(determined in the manner  provided in Section 4 of the Incentive Plan) equal to
the amount of the  payment  (c) a note in the amount of the  payment  containing
such terms as are approved by the Program Administrator,  or (d) any combination
of the foregoing in an aggregate amount equal to the amount of the payment.

     Section  4.  Stock   Appreciation   Rights  in  Tandem  with  Incentive  or
Supplemental  Stock  Options.  A SAR granted in tandem with an  incentive  stock
option or a  supplemental  stock  option  (each,  an  "Option")  shall be on the
following terms and conditions:

          (a) Each SAR shall relate to a specific Option or portion of an Option
     granted under the Incentive Plan or the Supplemental  Plan, as the case may
     be, and may be granted by the Program  Administrator  at the same time that
     the Option is granted  or at any time  thereafter  prior to the last day on
     which the Option may be exercised.

          (b) A SAR shall  entitle a recipient  upon  surrender of the unexpired
     related Option, or a portion thereof, to receive from the Company an amount
     equal to the excess of (i) the Fair Market Value  (determined in accordance
     with Section 4 of the  Incentive  Plan) of the shares of Common Stock which
     the recipient would have been entitled to purchase on that date pursuant to
     the  portion of the  Option  surrendered,  over (ii) the  amount  which the
     recipient  would have been  required  to pay to  purchase  such shares upon
     exercise of such Option.

                                      -15-
<PAGE>

          (c) A SAR shall be  exercisable  only for the same number of shares of
     Common  Stock,  and  only at the  same  times,  as the  Option  to which it
     relates.  SARs shall be subject to such other terms and  conditions  as the
     Program Administrator may specify.

          (d) A SAR shall lapse at such time as the related  Option is exercised
     or lapses pursuant to the terms of the Program. On exercise of the SAR, the
     related Option shall lapse as to the number of shares exercised.

     Section 5. Naked Stock  Appreciation  Rights.  SARs  granted by the Program
Administrator  as naked stock  appreciation  rights  ("Naked  Rights")  shall be
subject to the following terms and conditions:

          (a) The Program Administrator may award Naked Rights to recipients for
     periods not exceeding ten years. Each Naked Right shall represent the right
     to receive the excess of (i) the Fair  Market  Value of one share of Common
     Stock  (determined in accordance  with Section 4 of the Incentive  Plan) on
     the date of exercise of the Naked Right, over (ii) the Fair Market Value of
     one share of Common Stock  (determined in accordance  with Section 4 of the
     Incentive Plan) on the date the Naked Right was awarded to the recipient.

          (b) Unless otherwise provided by the Program Administrator at the time
     of  award or  unless  the  installment  provisions  set  forth  herein  are
     subsequently  accelerated  pursuant to Article 18 of the General Provisions
     of the Program or  otherwise by the Program  Administrator  with respect to
     any one or more previously  granted Naked Rights,  Naked Rights may only be
     exercised  to  the  following  extent  during  the  following   periods  of
     employment or service:

                                      -16-
<PAGE>

Period Following                                   Maximum Percentage of
 Date of Grant                                         Naked Rights
---------------                                        Which May be
                                                         Purchased
                                                         ---------
Less than 12 months                                          0%

12 months or more and less than 24                          25%
months

24 months or more and less than 36 months                   50%

36 months or more and less than 48 months                   75%

48 months or more                                          100%

     (c) The Naked Rights solely measure and determine the amounts to be paid to
recipients  upon  exercise  as  provided in Section  5(a).  Naked  Rights do not
represent  Common Stock or any right to receive Common Stock.  The Company shall
not hold in trust or otherwise  segregate  amounts  which may become  payable to
recipients of Naked Rights; such funds shall be part of the general funds of the
Company.  Naked Rights shall constitute an unfunded  contingent  promise to make
future payments to the recipient.

                                      -17-
<PAGE>

                                     PLAN IV

                           BARRINGER TECHNOLOGIES INC.

                             PERFORMANCE SHARE PLAN

     Section 1. General. This Barringer Technologies Inc. Performance Share Plan
("Performance  Share  Plan") is Part IV of the  Company's  Program.  Unless  any
provision herein indicates to the contrary,  the Performance Share Plan shall be
subject to the General Provisions of the Program.

     Section  2.  Terms and  Conditions.  The  Program  Administrator  may grant
performance  shares  to any  person  eligible  under  Article  4 of the  General
Provisions. Each performance share grant shall confer upon the recipient thereof
the right to receive a specified number of shares of Common Stock of the Company
contingent upon the  achievement of specified  performance  objectives  within a
specified  performance  objective  period  including,  but not  limited  to, the
recipient's  continued  employment or service as a consultant through the period
set forth in Section 5 of this  Performance  Share Plan. At the time of an award
of a performance share, the Program  Administrator shall specify the performance
objectives,  the  performance  objective  period or  periods  and the  period of
duration of the performance  share grant.  Any performance  shares granted under
this Plan shall  constitute an unfunded  promise to make future  payments to the
affected person upon the completion of specified conditions.

     Section 3. Mode of Payment. At the discretion of the Program Administrator,
payments of performance  shares may be made in (a) shares of Common Stock, (b) a
check in an amount  equal to the Fair  Market  Value  (determined  in the manner
provided in Section 4 of the  Incentive  Plan) of the shares of Common  Stock to
which the performance  share award relates,  (c) a note in the amount  specified
above in Section  3(b)  containing  such terms as are  approved  by the  Program
Administrator,  or (d) any combination of the foregoing in the aggregate  amount
equal to the amount specified above in Section 3(b).

     Section 4. Performance  Objective Period. The duration of the period within
which to achieve the performance  objectives  shall be determined by the Program
Administrator.  The period may not be less than one year nor more than ten years
from the date that the performance share is granted.  The Program  Administrator
shall  determine  whether  performance  objectives have been met with respect to
each applicable  performance  objective period. Such determination shall be made
promptly after the end of each applicable  performance  objective period, but in
no  event  later  than 90 days  after  the  end of each  applicable  performance
objective period. All  determinations by the Program  Administrator with respect
to the achievement of

                                      -18-
<PAGE>

performance objectives shall be final, binding on and conclusive with respect to
each recipient.

     Section 5. Vesting of Performance Shares.  Unless otherwise provided by the
Program Administrator at the time of grant or unless the installment  provisions
set forth  herein are  subsequently  accelerated  pursuant  to Article 18 of the
General  Provisions  of the Program or otherwise  by the Program  Administrator,
with  respect to any one or more  previously  granted  performance  shares,  the
Company  shall  pay to the  recipient  on the date set  forth in  Column 1 below
("Vesting Date") the percentage of the recipient's  performance  share award set
forth in Column 2 below.

          Column 1                              Column 2
          Vesting Date                         Percentage
          ------------                         ----------

1 year from Date of Grant                          25%
2 years from Date of Grant                         25%
3 years from Date of Grant                         25%
4 years from Date of Grant                         25%

                                      -19-
<PAGE>

                                     PLAN V

                           BARRINGER TECHNOLOGIES INC.

                                STOCK BONUS PLAN

     Section 1.  General.  This  Barringer  Technologies  Inc.  Stock Bonus Plan
("Stock  Bonus Plan") is Part V of the Company's  Program.  Unless any provision
herein  indicates to the contrary,  the Stock Bonus Plan shall be subject to the
General Provisions of the Program.

     Section  2.  Terms and  Conditions.  The  Program  Administrator  may grant
bonuses  in the form of shares  of Common  Stock to any  person  eligible  under
Article 4 of the General Provisions. Each such stock bonus shall be forfeited by
the  recipient in the event that the  recipient's  employment by or service as a
director or consultant to the Company or any  Subsidiary  terminates  within the
time periods specified in Section 3 of the Stock Bonus Plan or within such other
time period as the Program  Administrator also may provide at the time of grant.
The Program  Administrator also may provide at the time of grant that the Common
Stock  subject to the stock bonus shall be forfeited by the  recipient  upon the
occurrence of other events.

     Section 3.  Forfeiture of Bonus Shares.  Unless  otherwise  provided by the
Program Administrator at the time of grant or unless the installment  provisions
set forth  herein are  subsequently  accelerated  pursuant  to Article 18 of the
General Provisions of the Program or otherwise by the Program Administrator with
respect to any one or more previously  granted bonus shares,  the percentage set
forth in Column 2 below of shares of Common  Stock issued as a stock bonus shall
be  forfeited  and  transferred  back to the  Company by the  recipient  without
payment of any consideration  from the Company if the recipient's  employment by
or service as a director  or  consultant  to the  Company or any  Subsidiary  is
terminated for any reason during the time periods specified in Column 1 below:

                                      -20-
<PAGE>

         Column 1                                    Column 2
    Employment or Service                      Percentage of Bonus
      Terminated Within                         Shares Which are
    ---------------------                           Forfeitable
                                               -------------------

 First 12 months after grant                           100%
 First 24 months after grant                            75%
 First 36 months after grant                            50%
 First 48 months after grant                            25%
 Beyond 48 months after grant                            0%

     Section 4. Rights as a Stockholder;  Stock Certificates.  A recipient shall
have rights as a stockholder with respect to any shares of Common Stock received
as a stock  bonus  represented  by a stock  certificate  issued in his name even
though all or a portion of such shares  remains  subject to a risk of forfeiture
hereunder,  except that shares subject to forfeiture  shall not be transferable.
Stock  certificates  representing such shares which remain subject to forfeiture
together with a related  stock power shall be held by the Company,  and shall be
canceled and returned to the Company's treasury if thereafter  forfeited.  Stock
certificates  representing such shares which are vested and no longer subject to
forfeiture shall be delivered to the recipient.

                                      -21-
<PAGE>

                                     PLAN VI

                           BARRINGER TECHNOLOGIES INC.

                            INDEPENDENT DIRECTOR PLAN

     Section 1. General.  This Barringer  Technologies Inc. Independent Director
Plan  ("Independent  Director  Plan") is Part VI of the Company's  Program.  Any
option  granted  pursuant  to this  Independent  Director  Plan  shall not be an
incentive  stock  option as  defined  in  Section  422 of the Code.  Unless  any
provision herein indicates to the contrary, this Independent Director Plan shall
be subject to the General Provisions of the Program.

     Section 2. Terms and Conditions.  Every year on the earlier of (i) the date
of the Company's  annual meeting of  stockholders,  and (ii) June 1, the Company
shall  grant to each  Independent  Director  (as  defined  below)  elected  as a
director at such annual  meeting (or nominated for election as a director by the
Board of Directors or any  nominating  committee  thereof in the event that such
annual  meeting does not occur prior to June 1), or, in the event that the Board
of  Directors  is divided into two or more  classes,  continuing  or expected to
continue to serve as a director of the Company following such annual meeting, an
option to purchase  3,000  shares of Common  Stock.  As used in the  Independent
Director Plan, the term "Independent  Director" means any member of the Board of
Directors  who,  as of the  relevant  date  of  determination,  has  not  been a
full-time  employee of the Company or any  Subsidiary for at least twelve months
preceding such date.

     Section 3.  Duration  of  Options.  Each  option and all rights  thereunder
granted pursuant to the terms of the Independent Director Plan shall expire five
years from the date on which the option is  granted.  In  addition,  each option
shall be subject to early  termination as provided in the  Independent  Director
Plan.

     Section 4.  Purchase  Price.  The option  price with  respect to any option
granted pursuant to the Independent Director Plan shall be the Fair Market Value
(determined in accordance with Section 4 of the Incentive Plan) of the shares of
Common Stock to which the option relates.

     Section 5. Exercise of Options.

     (a) Options granted under the Independent  Director Plan shall become fully
exercisable  as to 100% of the shares of Common Stock  covered  thereby one year
after the date of grant,  subject to  acceleration as set forth in Article 18 of
the General Provisions of Stock Compensation Program.

                                      -22

<PAGE>

     (b) Except as  provided  in the General  Provisions  of Stock  Compensation
Program, no option may be exercised unless the holder thereof is then a director
of the Company.

     (c) Other than as provided in the General Provisions  Compensation Program,
options granted under the Independent Director Plan shall not be affected by any
change of duties or position so long as the holder continues to be a director of
the Company.

                                      -23-Barringer Technologies Inc.
                          Supplemental Retirement Plan

Preamble

Establishment  and  Intent.  Barringer  Technologies  Inc.,  together  with  its
subsidiaries  (the "Employer")  establishes,  effective as of January 1, 1998, a
nonqualified,  unfunded, deferred contribution supplemental executive retirement
plan on behalf of certain designated management or highly compensated employees.
The Plan is intended to be an unfunded  deferred  compensation plan for a select
group of  management  or  highly  compensated  employees,  as  described  in the
Employee  Retirement  Income  Security Act of 1974, as amended  ("ERISA").  This
document defines the provisions of such  nonqualified plan and shall be known as
the "Barringer Technologies Inc. Supplemental Retirement Plan."

Purpose.  The Plan has three  purposes:  (1) to provide  the  Participants  with
additional  retirement  benefits to supplement  retirement benefits available to
them from other sources,  including the qualified  retirement plan maintained by
the  Employer;  (2) to provide an incentive to  Participants  to perform at high
levels;  and (3) to  encourage  Participants  to  remain  in the  employ  of the
Employer.

<PAGE>

                                Table of Contents

                                                                   Page
Article I. Definitions                                               1

Article II. Participation                                            5

Article III. Performance Account                                     6

Article IV. Vesting                                                  8

Article V. Payment of Benefits                                       9

Article VI. Administration                                          10

Article VII. Miscellaneous                                          12

Appendix - List of Plan Participants                                14

                                       2
<PAGE>

Article I. Definitions

     When used herein,  the following  shall have the meanings  below unless the
context clearly indicates otherwise:

     1.1 "Administrator" means the Executive Compensation Committee of Barringer
Technologies Inc. appointed by the Board of Directors to administer this Plan.

     1.2 "Appendix" means a written  supplement  attached to the Plan and made a
part hereof which has been added in accordance with the provisions of the Plan.

     1.3 "Beneficiary" means the Participant's spouse or other person designated
by the  Participant.  If the  Participant  has no spouse and makes no  effective
Beneficiary  designation,  then  the  Participant's  Beneficiary  shall  be  the
Participant's estate.

     1.4  "Board  of  Directors"  means  the  Board of  Directors  of  Barringer
Technologies Inc.

     1.5 "Change in Control" means any of the following events:

          (A) Any "person" or "group" (as such terms are used in Sections  13(d)
     and  14(d) of the  Securities  Exchange  Act of 1934,  as  amended),  is or
     becomes the  "beneficial  owner" (as defined in Rules 13d-3 and 13d-5 under
     the Securities Exchange Act of 1934, as amended, except that a person shall
     be deemed to have "beneficial ownership" of all securities that such person
     has the right to acquire,  whether such right is exercisable immediately or
     only after the passage of time), directly or indirectly,  of 50% or more of
     the total voting power of the Company's outstanding capital stock;

          (B)  The  individuals  who  (i)  as of  the  date  of  this  Agreement
     constitute  the  Board  of  Directors  (the  "Original  Directors"),   (ii)
     thereafter  are  elected to the Board of  Directors  and whose  election or
     nomination for election to the Board of Directors was approved by a vote of
     at least 2/3 of the Original Directors then still in office (such Directors
     being called "Additional Original Directors"),  or (iii) are elected to the
     Board of Directors  and whose  election or  nomination  for election to the
     Board of  Directors  was approved by a vote of at least 2/3 of the Original
     Directors and Additional Original Directors then still in office, cease for
     any  reason  to  constitute  a  majority  of the  members  of the  Board of
     Directors;

          (C)  The   stockholders   of  the  Company  shall  approve  a  merger,
     consolidation,  recapitalization,  or  reorganization of the Company or the
     Company shall  consummate any such  transaction if stockholder  approval is
     not sought or obtained,  other than any such transaction which would result
     in holders of  outstanding  voting  securities  of the Company  immediately
     prior to the transaction having beneficial ownership of at least 50% of the
     total voting power  represented  by the voting  securities of the surviving
     entity

<PAGE>

     outstanding  immediately after such  transaction,  with the voting power of
     each such continuing holder relative to such other continuing holders being
     not altered substantially in the transaction; or

          (D) The  stockholders  of the Company shall approve a plan of complete
     liquidation  of the  Company  or an  agreement  for the  sale,  assignment,
     conveyance,  transfer,  lease or other disposition by the Company of all or
     substantially all of its assets to any person, or group of related persons,
     in one or a series of related transactions.

     1.6 "Code" means the Internal Revenue Code of 1986, as amended.

     1.7 "Company" means Barringer Technologies Inc.

     1.8 "Compensation" means a Participant's base salary and the amount payable
to such Participant  under the Annual Incentive Plan or any successor cash bonus
plan  for  services  rendered  to  the  Employer  for  the  applicable   period.
Compensation  shall include amounts that would be paid to the  Participant  with
respect  to the Plan  Year but for the  Participant's  election  under a cash or
deferred arrangement described in Section 401(k) of the Code or a cafeteria plan
described  in  Section  125 of the Code.  Except as  expressly  provided  in the
preceding  sentence,  Compensation  shall not include  Employer  Allocations  or
contributions to this or any other plan for the benefit of its employees.

     1.9 "EBITDA" means,  for any period,  the sum (without  duplication) of (i)
Consolidated  Net Income,  (ii) to the extent  Consolidated  Net Income has been
reduced thereby,  all income taxes of the Company and its  subsidiaries  paid or
accrued for such period (other than income taxes  attributable to extraordinary,
unusual or non-recurring gains or losses),  all interest expenses,  amortization
expenses and depreciation  expenses of the Company and its subsidiaries  paid or
accrued for such period,  and (iii) other non-cash  items reducing  Consolidated
Net Income, less other non-cash items increasing Consolidated Net Income, all as
determined  on a  consolidated  basis for the  Company and its  subsidiaries  in
conformity with generally accepted accounting  principles,  consistently applied
for all relevant periods.  "Consolidated Net Income" means, for any period,  the
aggregate  net income (or loss) of the  Company  and its  subsidiaries  for such
period on a consolidated basis, determined in accordance with generally accepted
accounting  principles,  consistently applied for all relevant periods, less (i)
gains and losses from any sale, lease, conveyance, transfer or other disposition
of any assets or property of the Company and its subsidiaries, other than in the
ordinary  course of  business,  including  the tax effects  thereof,  (ii) items
classified under generally accepted accounting principles,  consistently applied
for all relevant  periods,  as extraordinary or non-recurring  gains and losses,
and the  related tax  effects  thereof,  and (iii) the net income or loss of any
entity  acquired  in a  transaction  accounting  for as a pooling  of  interests
accrued prior to the date such entity is acquired by the Company.

                                       2
<PAGE>

All   determinations  of  EBITDA  hereunder  shall  be  made  by  the  Company's
independent public accountants, which determinations shall be final, binding and
conclusive  for all  purposes  under this Plan,  absent  clear  mistake or other
manifest error.

     1.10 "Effective Date" means January 1,1998.

     1.11  "Employer"  means  the  Company  and any of its  direct  or  indirect
wholly-owned  subsidiaries  which adopt,  with the approval of the Company,  the
Plan.

     1.12 "Employer Allocation" means the amount allocated to each Participant's
Performance Account each Plan Year pursuant to Section 3.1.

     1.13 "ERISA" means the Employee  Retirement Income Security Act of 1974, as
amended.

     1.14 "Good  Reason" with respect to an individual  Participant,  shall have
the meaning  ascribed to such term in such  Participant's  employment  agreement
with the  Employer.  In all other cases,  references  to "Good  Reason" shall be
given no effect.

     1.15  "Investment  Fund or  Funds"  means  one or  more  of the  investment
alternatives which are used by the Plan as a measurement of investment return on
Performance Accounts.

     1.16 "Normal  Retirement  Date" means the first day of the month coincident
with or next  following the later of the date a  Participant  reaches age 60 and
the date he or she completes five Years of Plan Participation.

     1.17  "Participant"  means  an  individual  employed  by the  Employer  who
satisfies  the  requirements  described  in Article II. The names of the initial
Tier I and Tier II Participants are listed in the Appendix.

     1.18 "Performance  Account" means the bookkeeping  account  established and
maintained for each Participant to which Employer Allocations and any investment
earnings or losses thereon are credited.

     1.19 "Permanent Disability" (i) with respect to an individual  Participant,
shall  have  the  meaning  ascribed  thereto  in such  Participant's  employment
agreement with the Employer or (ii) in the event that no such agreement  exists,
such term shall mean the total and permanent  incapacity  of a Participant  as a
result  of which  the  Participant  is  entitled  to  receive  and is  receiving
disability benefits under the Federal Social Security Act.

     1.20 "Plan" means the Barringer  Technologies Inc. Supplemental  Retirement
Plan set forth herein,  as the same may be amended or supplemented  from time to
time.

     1.21 "Plan Year" means the calendar year.

                                       3
<PAGE>

     1.22  "Supplemental  Retirement  Benefit" means the benefits payable to the
Participant in accordance with Article V.

     1.23  "Targeted  EBITDA"  means  the  amount of  EBITDA  determined  by the
Administrator   with  respect  to  a  particular  Plan  Year  and  used  in  the
determination of Employer Allocations described in Section 3.1.2.

     1.24 "Termination for Cause" (i) with respect to an individual Participant,
shall  have  the  meaning  ascribed  thereto  in such  Participant's  employment
agreement with the Employer or (ii) in the event that no such agreement  exists,
such term shall mean,  to the maximum  extent  permitted  by  applicable  law, a
termination  of  the  Participant's  employment  by  the  Employer  because  the
Participant has (a) materially  breached or materially  failed to perform his or
her  duties  under  applicable  law  and  such  breach  or  failure  to  perform
constitutes self-dealing,  willful misconduct or recklessness,  (b) committed an
act of  dishonesty  in the  performance  of his or her duties to the Employer or
engaged in conduct materially  detrimental to the business of the Employer,  (c)
been convicted of a felony, (d) been convicted of a misdemeanor  involving moral
turpitude,  (e) materially  breached or materially  failed to perform his or her
obligations and duties hereunder,  which breach or failure the Participant shall
fail to remedy  within 30 days after written  demand from the  Employer,  or (f)
violated in any material respect the  representations  made in any Participant's
employment  agreement  between the Employer and the  Participant or any covenant
contained therein.

     1.25 "Tier I Participant" means an individual  employed by the Employer who
satisfies the requirements described in Article II for Tier I Participants.  The
names of Tier I Participants as of the date hereof are listed in the Appendix.

     1.26 "Tier II Participant" means an individual employed by the Employer who
satisfies the requirements described in Article II for Tier II Participants. The
names of Tier II Participants as of the date hereof are listed in the Appendix.

     1.27 "Year of Plan Participation" means each calendar year period beginning
on an Employee's  Effective Date of Participation,  as set forth in Section 2.3,
and each  anniversary  thereof on which the Participant is still employed on the
last day of said calendar year.

     1.28  "Without  Cause  Termination"  (i)  with  respect  to  an  individual
Participant,  shall have the  meaning  ascribed  thereto  in such  Participant's
employment  agreement  with  the  Employer  or  (ii) in the  event  that no such
agreement  exists,  such term  shall  mean a  termination  of the  Participant's
employment  by the Employer  other than due to (a) a  Termination  for Cause (as
defined in Section 1.24 above), (b) Permanent  Disability (as defined in Section
1.19 above) or (c) the Participant's death.

                                       4
<PAGE>

Article II. Participation

     2.1 Board of Directors Approval. The Administrator, in its sole discretion,
shall  designate  the  Employees  who  shall   participate  under  the  Plan  as
Participants  solely from a select  group of  management  or highly  compensated
employees.

     2.2  Tier.  Employees  shall  be  designated  as  either  Tier I or Tier II
Participants. The names of the initial Tier I and Tier II Participants as of the
date hereof are listed in the Appendix.

     2.3 Effective  Date of  Participation.  A selected  Employee shall become a
Participant  on the later of the  Effective  Date of the Plan,  or the January 1
designated by the Administrator.

                                       5
<PAGE>

Article III. Performance Account

     3.1 Employer Allocations.

          3.1.1  Entitlement.  For each  Plan  Year  beginning  on or after  the
     Effective  Date  that a  Participant  receives  credit  for a Year  of Plan
     Participation,  the  Employer  shall  allocate to the  Performance  Account
     established for such Participant the amount determined under Section 3.1.2,
     provided that the  Participant  is employed by the Employer on the last day
     of the Plan Year or terminated  employment during such Plan Year on account
     of death, Permanent Disability or attainment of his Normal Retirement Date.
     Employer  Allocations  shall  be  credited,  as  soon  as  administratively
     possible, after the last day of the Plan Year to which they relate.

          3.1.2  Determination  of Amount.  The amount  allocated to an eligible
     Participant's  Performance  Account under Section 3.1.1 for each Plan Year,
     if any, shall be a percentage of the  Participant's  Compensation  for such
     Plan Year. Such percentage shall be determined by the Administrator, in its
     sole discretion, subject to the following guidelines:

--------------------------------------------------------------------------------
PARTICIPANT     IF N0 EBJTDA    IF TARGETED             MAXIMUM IF EBITDA
                                EBITDA IS ACHIEVED      EXCEEDS TARGETED EBITDA
--------------------------------------------------------------------------------
TIER I              0%               20%                     22%
TIER II             0%                8%                     10%
--------------------------------------------------------------------------------

In addition, in determining each Participant's percentage (within the ranges set
forth above), the Administrator may consider the amount of current net income of
the Employer,  the relationship of current net income of the Employer to that of
prior years, the overall economic environment and any other factors it considers
relevant.

     3.2 Investment  Elections.  The Administrator shall select Investment Funds
to be used as a measurement of investment  returns on Performance  Accounts,  or
may  appoint  one or  more  investment  managers  to  select  such  Funds.  Each
Participant   may  specify  the  percentage  of  Employer   Allocations  to  his
Performance  Account  for each  Plan  Year to be  credited  with the  investment
returns earned by each such  Investment  Fund, by filing an investment  election
form with the  Administrator  in accordance with  procedures  established by the
Administrator.  A Participant  may change his  Investment  Fund  selections  for
future Employer Allocations,  or for amounts already credited to his Performance
Account, in accordance with procedures established by the Administrator. No such
selection shall obligate the  Administrator or the Plan to invest any amounts in
any Investment Fund.

                                       6
<PAGE>

     3.3 Crediting of Investment Returns to Performance  Accounts. As of the end
of each Plan Year, the  Administrator  shall credit or debit each  Participant's
Performance  Account with the investment returns  attributable to the balance of
such Performance Account.

                                       7
<PAGE>

Article IV. Vesting

     4.1 Vesting Based on Years of Participation.  A Participant shall have a 0%
vested  interest  in  his or  her  Performance  Account  until  the  Participant
completes  five Years of Plan  Participation,  at which time his or her interest
shall become 100% vested.

     4.2  Vesting  Based on  Permanent  Disability  or  Death.  A  Participant's
interest in his or her Performance  Account shall in any case become 100% vested
if, while employed by the Employer, he or she sustains a Permanent Disability or
dies.

     4.3 Vesting  Based on Without Cause  Termination  or  Resignation  for Good
Reason. A Participant's  interest in his or her Performance Account shall in any
case become 100% vested if his or her service with the Employer is terminated as
a result of a  Without  Cause  Termination.  In the  event  that the  employment
agreement  between an  individual  Participant  and the  Employer  provides  for
resignation  for Good  Cause,  then such  Participant's  interest  in his or her
Performance Account shall in any case become 100% vested if he or she terminates
employment with the Employer by resignation for Good Reason.

     4.4 Vesting  Based on Change in Control.  A  Participant's  interest in his
Performance  Account  shall in any case become 100% vested if his or her service
with the Employer terminates as a result of a Change in Control.

     4.4  Forfeiture.  If a Participant's  employment  terminates for any reason
other than those  described in this Article,  before the  Participant  completes
five Years of Plan  Participation,  the  Participant  shall  forfeit  his or her
entire interest in his or her Performance Account.

                                       8
<PAGE>

Article V. Payment of Benefits

     5.1 Payment at Normal  Retirement Date. A Participant whose employment with
the  Employer  terminates  on or after  his  Normal  Retirement  Date,  shall be
entitled  to  receive  the  value  of  his   Performance   Account  as  soon  as
administratively practicable thereafter.

     5.2 Form of Benefit. Any benefit to which a Participant is entitled in this
Article  V shall be paid in cash in a single  lump  sum.  As an  alternative,  a
Participant  may  instruct  the  Administrator  to purchase an annuity  with the
single lump sum.

     5.3 Death Benefits.  As soon as  administratively  practicable  following a
Participant's  death, the  Participant's  Beneficiary  shall be paid in a single
cash  lump  sum  equal  to  the  Participant's  vested  interest  in  his or her
Performance Account not otherwise distributed to such Participant hereunder.

     5.4 Disability Benefit. As soon as administratively  practicable  following
the  Administrator's  determination  that a Participant has suffered a Permanent
Disability,  the  Participant  shall be entitled  to receive  the  Participant's
vested interest in his or her Performance Account.

     5.5 Vested Terminated Participants.  A Participant,  on the date determined
under  Sections  5.5.1 or 5.5.2,  who  terminates  employment  with the Employer
before  his or her  Normal  Retirement  Date shall be  entitled  to receive  the
Participant's vested interest in his or her Performance Account.

          5.5.1 Without Cause Termination or Resignation for Good Reason. In the
     event that a Participant  leaves the service of the Employer as a result of
     a Without  Cause  Termination,  he or she shall be  entitled to receive the
     vested value of his or her Performance  Account as soon as administratively
     practicable following his or her date of termination. In the event that the
     employment  agreement  between an individual  Participant  and the Employer
     provides for  resignation for Good Reason and such  Participant  leaves the
     service of the Employer as a result thereof, than such Participant shall be
     entitled to receive the vested value of his or her  Performance  Account as
     soon  as  administratively   practicable  following  his  or  her  date  of
     termination.

          5.5.2 Termination for Cause and Other  Termination or Resignation.  In
     the event that a Participant leaves the service of the Employer as a result
     of a  Termination  for Cause,  retirement or any reason (other than Without
     Cause Termination, Permanent Disability, resignation for Good Reason (where
     applicable),  resignation  or  termination  in connection  with a Change in
     Control or death),  he or she shall be entitled to receive the vested value
     of his or her Performance Account as soon as  administratively  practicable
     following the later of the date of termination or attainment of age 60.

                                       9
<PAGE>

Article VI. Administration

     6.1 Administration. The Administrator shall have the authority to interpret
the Plan and to  determine  the amount and time of payment of benefits and other
issues  arising  in  the   administration  of  the  Plan.  Any  construction  or
interpretation  of the Plan and any  determination of fact in administering  the
Plan made in good faith by the  Administrator  shall be final and conclusive for
all Plan purposes.

     6.2 Claims Procedure.

          6.2.1 Initial Determination. Upon presentation to the Administrator of
     a claim for  benefits  under  the  Plan,  the  Administrator  shall  make a
     determination of the validity  thereof.  If the determination is adverse to
     the claimant,  the  Administrator  shall furnish to the claimant  within 90
     days after the  receipt  of the claim a written  notice  setting  forth the
     following:

          a)   the specific reason or reasons for the denial;

          b)   specific references to pertinent  provisions of the Plan on which
               the denial is based;

          c)   if  applicable,  a  description  of any  additional  material  or
               information  necessary  for the claimant to perfect the claim and
               an  explanation of why such material or information is necessary;
               and

          d)   appropriate  information  as to  the  steps  to be  taken  if the
               claimant wishes to submit his or her claim for review.

          6.2.2  Appeal  Procedure.  In the  event of a denial  of a claim,  the
     claimant or his or her authorized  representative may appeal such denial to
     the Administrator for a full and fair review of the adverse  determination.
     The  claimant's  request  for  review  must be in  writing  and made to the
     Administrator  within 60 days after  receipt  by  claimant  of the  written
     notification  described  in Section  6.2.1;  provided,  however,  that such
     60-day period may be extended by the  Administrator  in its sole discretion
     if circumstances so warrant. During this period, the claimant or his or her
     duly authorized  representative  may review  pertinent  documents,  and may
     submit   issues  and  comments  in  writing   which  shall  be  given  full
     consideration by the Administrator in its review.

          6.2.3 Decision on Appeal. A decision on a request for review shall (i)
     state in writing the specific reasons and references to the Plan provisions
     on which it is based;  (ii) shall be promptly  provided to the claimant and
     (iii) be made by the  Administrator not later than 60 days after receipt of
     the  request;  provided,  however,  that  the  Administrator,  in its  sole
     discretion, may postpone such decision for a period of time

                                       10
<PAGE>

     not to exceed 60 days if  circumstances  so warrant.  If it is necessary to
     extend the  period of time for  making a decision  beyond 60 days after the
     receipt of the request,  the  claimant  shall be notified in writing of the
     extension of time prior to the beginning of such extension.

                                       11
<PAGE>

Article VII. Miscellaneous

     7.1 No Effect on Employment  Rights.  Nothing  contained herein will confer
upon any Participant the right to be retained in the service of the Employer nor
limit  the  right of the  Employer  to  discharge  or  otherwise  deal  with any
Participant without regard to the existence of the Plan.

     7.2 Funding.  The Employer may establish a grantor trust for the purpose of
funding Supplemental  Retirement Benefits. Any trust so created shall conform to
the terms of the  model  trust  provided  by the  Internal  Revenue  Service  as
described in Revenue Procedure 92-64.  Notwithstanding the establishment of such
trust,  it is the intention of the Employer and the  Participants  that the Plan
shall be unfunded for tax  purposes  and for  purposes of Title I of ERISA.  All
amounts credited under the Plan shall constitute general assets of the Employer.
The Plan  constitutes  a mere  promise by the  Employer  to pay  benefits in the
future.  To the extent that any Participant or any other person acquires a right
to receive  benefits  under this Plan,  such right shall be no greater  than the
right of any unsecured general creditor of the Employer.

     7.3  Spendthrift  Provisions.  No benefit  payable  under the Plan shall be
subject in any manner to anticipation,  alienation, sale, transfer,  assignment,
pledge, encumbrance, or charge prior to actual receipt thereof by the payee; and
any attempt so to anticipate, alienate, sell, transfer, assign, pledge, encumber
or charge prior to such  receipt  shall be void;  and the Employer  shall not be
liable in any  manner  for or  subject  to the  debts,  contracts,  liabilities,
engagements  or torts of any person  entitled to any benefit under the Plan. The
Plan shall honor a qualified  domestic  relations  order  (within the meaning of
Section 206(d) (3) (B) (i) of ERISA).

     7.4  Governing  Law.  The Plan is  established  under and will be construed
according  to the laws of the State of New Jersey,  to the extent that such laws
are not preempted by ERISA and valid regulations promulgated thereunder.

     7.5  Incapacity  of  Recipient.  In the  event a  Participant  is  declared
incompetent  and a conservator or other person legally  charged with the care of
the person or the estate of such  Participant  is appointed,  any benefits under
the Plan to which such  Participant is entitled shall be paid to the conservator
or other person  legally  charged with the care of such  Participant.  Except as
provided in the preceding sentence, should the Administrator, in its discretion,
determine  that a Participant  is unable to manage his or her personal  affairs,
the Administrator  may take  distributions to any person for the benefit of such
Participant,  provided the Administrator  makes a reasonable good faith judgment
that such person shall expend the funds so  distributed  for the benefit of such
Participant.

     7.6 Amendment or  Termination.  The Company  reserves the right to amend or
terminate  the Plan when,  in the sole opinion of the  Company,  an amendment or
termination  is  advisable.  Any such  amendment  or  termination  shall be made
pursuant to a

                                       12
<PAGE>

resolution  of the  Board of  Directors  and shall be  effective  as of the date
specified  in the  resolution.  No amendment  or  termination  of the Plan shall
directly  or  indirectly  deprive any  Participant  of all or any portion of the
Participant's Performance Account considered to be accrued under the Plan before
the date of amendment or termination.

     7.7 Withholding. The Employer reserves the right, notwithstanding any other
provision of the Plan, to withhold applicable federal, state or local taxes from
payments under the Plan.

     7.8  Construction.  The singular  includes  the plural,  unless the context
clearly indicates otherwise.

                                       13
<PAGE>

Appendix - List of Plan Participants

     As of January 1, 1998 the following  employees have been  designated by the
Administrator as Tier I participants:

          Stanley S. Binder

          John H. Davies

     As of January 1, 1998, the following  employees have been designated by the
Administrator as Tier II participants:

         Kenneth S. Wood

         Richard S. Rosenfeld

                                       14
<PAGE>

                                AMENDMENT TO THE
                           BARRINGER TECHNOLOGIES INC.
                          SUPPLEMENTAL RETIREMENT PLAN

     AMENDMENT to the Barringer  Technologies Inc. Supplemental  Retirement Plan
(the "Plan") dated the 20th day of October, 1999.

                                   WITNESSETH:

     WHEREAS, Barringer Technologies Inc. (the "Company") heretofore adopted the
Plan effective as of January 1, 1998; and

     WHEREAS, Section 7.6 of the Plan reserves to the Company the right to amend
the Plan from time to time;

     NOW, THEREFORE, the Plan is hereby amended as follows:

                                      FIRST

     Section 6.2.4 is hereby added to the Plan, to read as follows:

          6.2.4  In  the  event  that,  on or  after  a  Change  in  Control,  a
     litigation,  arbitration or other  proceeding is commenced by a Participant
     to compel  the  Company  to make a  distribution  under the Plan of amounts
     which  the   Participant  is  due,  the  Company  shall  bear  all  of  the
     Participant's reasonable costs and expenses arising in connection with such
     dispute or controversy and shall advance or reimburse the Participant, on a
     current basis (upon  delivery of receipts or invoices),  for all reasonable
     legal fees and  expenses  incurred in  connection  with any such dispute or
     controversy  (regardless of the result thereof).  Pending resolution of any
     such dispute or  controversy,  the Company shall pay or continue to pay all
     amounts due the Participant  under the Plan  (determined  without regard to
     the matter in dispute). If the Participant's  position is not substantially
     upheld in connection with any suit or other proceeding to enforce the terms
     of the Plan, the Participant shall reimburse the Company for any attorney's
     fees and other expenses advanced or paid by the Company to the Participant.

                                       15
<PAGE>

                                     SECOND

     Amendment  FIRST  above  shall  be  effective  as of the date  first  above
written.

     IN WITNESS WHEREOF, the undersigned, being a duly authorized officer of the
Company, has executed this Amendment as evidence of its adoption by the Company.

                                    BARRINGER TECHNOLOGIES INC.

                                    By: /s/ RICHARD S. ROSENFELD
                                        ------------------------------------
                                         Title: Vice President Finance - CFO
                                         Date: 10/20/99

                                      -16-

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