BARRINGER TECHNOLOGIES INC
SB-2/A, 1998-03-30
TESTING LABORATORIES
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    As filed with the Securities and Exchange Commission on March 30, 1998
                                                     Registration No. 333-33129
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                              Washington D.C. 20549
                                 _______________

                                 AMENDMENT NO. 3
                                       TO
                                    FORM SB-2
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                                 _______________
                           BARRINGER TECHNOLOGIES INC.
             (Exact name of registrant as specified in its charter)

   Delaware                                 3829                  84-0720473
(State or other jurisdiction of (Primary Standard Industrial (I.R.S. Employer
incorporation or organization)   Classification Code Number) Identification No.)
                                 _______________
                 219 South Street, Murray Hill, New Jersey 07974
                                 (908) 665-8200
               (Address, including zip code, and telephone number,
        including area code, of registrant's principal executive offices)
                                 _______________
                          Stanley S. Binder, President
                           Barringer Technologies Inc.
                 219 South Street, Murray Hill, New Jersey 07974
                                 (908) 665-8200
          (Name and address, including zip code, and telephone number,
                   including area code, of agent for service)
                                 _______________
                                   Copies to:

 John D. Hogoboom, Esq.                         Nils H. Okeson, Esq.
 Lowenstein Sandler PC                          Alston & Bird LLP
 65 Livingston Avenue                           1201 West Peachtree Street
 Roseland, New Jersey 07068                     Atlanta, Georgia 30309
 (973) 597-2500                                 (404) 881-7000
                                                
                                 _______________
        Approximate date of commencement of proposed sale to the public:
   As soon as practicable after the Registration Statement becomes effective.
                                 _______________

<PAGE>

     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. [ ]

     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. [ ]

     If delivery of the  prospectus  is expected to be made pursuant to Rule 434
under the Securities Act, please check the following box. [ ] _______________

     The Registrant  hereby amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities  Act of 1933 or until this  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

<PAGE>

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 24.  Indemnification of Directors and Officers

     The  Certificate  of   Incorporation,   as  amended  (the  "Certificate  of
Incorporation"), and the Company's by-laws, as amended ("By-laws"), provide that
the Company shall, to the fullest extent permitted by law, indemnify each person
(including   the   heirs,   executors,   administrators   and   other   personal
representatives  of such person) against expenses  (including  attorneys' fees),
judgments,  fines  and  amounts  paid in  settlement,  actually  and  reasonably
incurred by such person in  connection  with any  threatened,  pending or actual
suit,  action  or  proceeding  (whether  civil,   criminal,   administrative  or
investigative  in nature or  otherwise)  in which such person may be involved by
reason of the fact that he or she is or was a director or officer of the Company
or is serving any other incorporated or unincorporated enterprise in any of such
capacities at the request of the Company.

     Section 145 of the General  Corporation  Law of the State of Delaware  (the
"GCL") permits a corporation,  under specified  circumstances,  to indemnify its
directors,  officers, employees or agents against expenses (including attorney's
fees),  judgments,  fines and amounts paid in settlement actually and reasonably
incurred by them in connection  with any action,  suit or proceeding  brought by
third parties by reason of the fact that they were or are  directors,  officers,
employees or agents of the corporation, if such directors,  officers,  employees
or agents acted in good faith and in a manner they reasonably  believed to be in
or not opposed to the best interests of the corporation and, with respect to any
criminal  action or  proceeding,  had no reason to  believe  their  conduct  was
unlawful.  In a  derivative  action,  i.e.,  one  by  or in  the  right  of  the
corporation,  indemnification  may  be  made  only  for  expenses  actually  and
reasonably  incurred by directors,  officers,  employees or agents in connection
with the defense or settlement of an action or suit,  and only with respect to a
matter as to which they  shall  have  acted in good  faith and in a manner  they
reasonably  believed  to be in or not  opposed  to  the  best  interests  of the
corporation,  except that no indemnification  shall be made if such person shall
have been judged  liable to the  corporation  unless and only to the extent that
the  court  in which  the  action  or suit  was  brought  shall  determine  upon
application  that the  defendant  directors,  officers,  employees or agents are
fairly and  reasonably  entitled to  indemnity  for such  expenses  despite such
adjudication of liability.

     The  Certificate of  Incorporation  also contains a provision  limiting the
personal liability of directors to the fullest extent permitted or authorized by
the GCL or other  applicable  law. Under the GCL, such provision would not limit
liability of a director for (i) breach of the director's  duty of loyalty,  (ii)
acts or  omissions  not in good faith or  involving  intentional  misconduct  or
knowing  violation  of  law,  (iii)  payment  of  dividends  or  repurchases  or
redemptions  of stock  other than from  lawfully  available  funds,  or (iv) any
transactions from which the director derives an improper benefit.

<PAGE>

Item 25.  Other Expenses of Issuance and Distribution

     The following table sets forth an itemized  statement of all expenses to be
incurred in connection with the issuance and distribution of the securities that
are  the  subject  of  this  Registration  Statement,  other  than  underwriting
discounts  and   commissions.   All  expenses   incurred  with  respect  to  the
distribution  will be paid by the  Company,  and such  amounts,  other  than the
Securities and Exchange Commission registration fee and the NASD filing fee, are
estimates only.

                                                                    Expense
                                                                ---------------
      Securities and Exchange Commission registration fee        $  10,586
      National Association of Securities Dealers, Inc. filing fee    3,994
      Nasdaq National Market listing fee                            17,500
      Accounting fees and expenses                                  65,000
      Legal fees and expenses                                      180,000
      Blue Sky fees and expenses                                     5,000
      Printing and engraving expenses                              200,000
      Miscellaneous                                                 17,920
          Total                                                  $ 500,000

Item 26.  Recent Sales of Unregistered Securities

     The following  information  relates to securities of the Company  issued or
sold within the past three years which were not registered  under the Securities
Act (all  share  and per  share  amounts  have  been  adjusted  to  reflect  the
one-for-four  reverse stock split of the Common Stock,  $.01 par value  ("Common
Stock"), effected on September 25, 1995):

          (i) In July 1996, the Company issued an aggregate amount of $1,000,000
     of its 6% subordinated convertible debentures,  due 1997 (the "Debentures")
     to  institutional  and private  investors and members of management  for an
     aggregate  purchase price of  $1,000,000.  This  transaction  was completed
     without  registration  under the  Securities  Act of the  Debentures or the
     shares of Common  Stock into  which  such  Debentures  are  convertible  in
     reliance upon the exemption provided by Section 4(2) of the Securities Act.
     There were no underwriters for this issuance.

          (ii) In June 1995, the Company  issued an aggregate of 28 units,  each
     unit consisting of 2,500 shares of Common Stock and a five-year  warrant to
     purchase  2,500  shares of Common  Stock at $2.00 per share (a "Unit"),  to
     private  investors  and members of  management,  for an aggregate  purchase
     price of $168,000.  This  transaction  was completed  without  registration
     under the  Securities  Act of the  shares of Common  Stock or the  warrants
     comprising the Units or the shares of Common Stock  underlying the warrants
     in reliance upon the exemption  provided by Section 4(2) of the  Securities
     Act. There were no underwriters for this issuance.

          (iii) In May 1995,  the Company  issued an  aggregate of 125 Units and
     one three-year  warrant to purchase  37,500 shares of Common Stock at $2.00
     per share, to two institutional  investors, for an aggregate purchase price
     of $750,000.  This transaction was completed without registration under the
     Securities Act of the shares of Common Stock or the warrants comprising the
     Units, the shares of Common Stock  underlying the warrants  included in the
     Units,  the  additional  three-year  warrant or the shares of Common  Stock
     underlying the three-year  warrant, in reliance upon the exemption provided
     by Section 4(2) of the Securities Act. There were no underwriters  for this
     issuance.

          (iv) In April 1995,  the  Company  issued  warrants to purchase  6,250
     shares of Common Stock at $4.00 per share to Labco in  connection  with its
     extension of an  intercompany  obligation.  This  transaction was completed
     without  registration  under  the  Securities  Act of the  warrants  or the
     underlying  shares of Common Stock in reliance upon the exemption  provided
     by Section 4(2) of the Securities Act. There were no underwriters  for this
     issuance.

          (v) At various times between January 1, 1995 and February 1, 1998, the
     Company granted stock options to retain  employees of the Company  covering
     an aggregate of 610,150  shares of Common  Stock.  These grants were exempt
     from  registration  pursuant to Securities Act Release No. 33-6188 (Feb. 1,
     1980). No underwriter was involved in these grants.

Item 27.  Exhibits

    The following exhibits are filed as part of this Registration Statement:

     1.1   Form of Underwriting Agreement.*
     3.1   Certificate of Incorporation of the Company, as amended.*
     3.2   By-laws of the Company  (previously  filed  as  Exhibit 3.2A  to the 
           Company's Annual Report on Form 10-K/A-2 for  the  fiscal year ended 
           December 31, 1994 (File No. 0-3207) and incorporated herein by 
           reference).
     5.1   Opinion of Lowenstein Sandler PC.
    10.1   Amended and Restated Employment Agreement, dated as of December 31, 
           1997, between the Company and Stanley S. Binder.
    10.2   Employment Agreement, dated November 1, 1996, between the Company and
           Richard  S.  Rosenfeld  (previously  filed  as  Exhibit  10.2 to the 
           Company's Registration Statement on Form  SB-2 (File  No. 333-13703) 
           and incorporated herein by reference).
    10.3   Employment Agreement, dated November 1, 1996, between the Company and
           Kenneth S. Wood  (previously  filed  as Exhibit 10.3 to the Company's
           Registration  Statement  on  Form  SB-2  (File No.  333-13703)   and 
           incorporated  herein by reference).
    10.4   Consulting Agreement,  dated  as  of  January  1, 1991,  between  the
           Company and John J. Harte (previously filed as Exhibit 10.4 to the 
           Company's Registration Statement on Form SB-2 (File No. 333-13703)and
           incorporated herein by reference).
    10.5   Form of 1995 nonqualified stock option agreement (previously filed as
           Exhibit 10.6 to the Company's Registration Statement  on  Form SB-2 
           (File No. 333-13703) and incorporated herein by reference).
    10.6   Form of 1996 nonqualified stock option agreement (previously filed as
           Exhibit 10.3 to the Company's Registration  Statement  on  Form SB-2 
           (File No. 333-13703) and incorporated herein by reference).
    10.7   Description of 1991 Warrant Plan (previously filed  as  Exhibit 10.8 
           to  the  Company's 

<PAGE>
           Registration  Statement   on   Form   SB-2  (File No. 333-13703) and 
           incorporated herein by reference).
    10.8   Description of Exercise Plan (previously filed as Exhibit 10.9 to the
           Company's Registration Statement on Form SB-2  (File  No. 333-13703) 
           and incorporated herein by reference).
    10.9   Barringer Technologies Inc. 1997 Stock Compensation Program.*
    10.10  License Agreement, dated February 27, 1989, between Canadian Patents 
           and  Development  Limited  -  Societe  Canadienne  Des   Brevets   Et
           D'Exploitation Limite and Barringer Instruments Limited (the "License
           Agreement"),  Supplement  #1,  dated   March  4, 1991, Assignment of 
           License Agreement, dated January 2, 1992, to Her Majesty the Queen in
           Right of Canada, as Represented By the Minister  of National Revenue 
           and Supplemental Letter Agreement, dated October 7, 1996 (previously 
           filed as Exhibit 10.10 to the Company's  Registration  Statement  on 
           Form B-2 (File No. 333-13703) and  incorporated herein by reference).
    10.11  Letter Agreement, dated  July 25, 1997,  by  and  between  Barringer 
           Research Limited and Her Majesty the  Queen  in  Right of Canada, as 
           Represented By the Minister of National Revenue.*
    10.12  Termination Agreement, dated October 7, 1996, between the Company and
           Barringer Laboratories Inc. (previously filed as Exhibit 10.11 to the
           Company's Registration Statement on Form  SB-2 (File  No. 333-13703) 
           and incorporated herein by reference). 
    10.13  Warrant Agreement by and  between  the  Company  and  American Stock 
           Transfer & Trust Company (previously  filed  as  Exhibit  4.1 to the 
           Company's Registration Statement on Form SB-2  (File  No. 333-13703) 
           and incorporated herein by reference). 
    10.14  Form of Warrant issued to Janney Montgomery Scott Inc. (previously 
           filed as Exhibit 4.2 to the Company's Registration Statement on Form 
           SB-2 (File No. 333-13703) and incorporated herein by reference).
    10.15  Lease, dated as of February 17, 1993, between the Company and Murray 
           Hill Associates (previously filed  as Exhibit 10.17 to the Company's 
           Registration   Statement  on  Form  SB-2  (File  No. 333-13703) and 
           incorporated herein by reference).
    10.16  Lease, dated as of July 27, 1995, between Barringer Research Limited 
           and Lehndorff Management Limited  (previously filed as Exhibit 10.18 
           to the Company's   Registration  Statement  on  Form  SB-2 (File No. 
           333-13703) and incorporated herein by reference).
    10.17  Letter Agreement, dated February 20, 1998 by and between the Company 
           and The Boyle Company.*
    10.18  Supplemental Executive Retirement Plan.
    10.19  Revolving Credit Note dated March 13, 1998 between the Company and 
           Fleet Bank, N.A.
    10.20  Unlimited Guaranty  of  Payment and Performance dated March 13, 1998 
           between the Company and Fleet Bank, N.A.
    10.21  Revolving  Credit  Loan  Agreement  dated  March  13, 1998 among the 
           Company,  Barringer Instruments,  Inc.,  Barringer  Research Limited 
           and Fleet Bank, N.A. 
    21.1   List of the Company's Subsidiaries (previously filed as Exhibit 21 to
           the Company's Registration Statement on Form SB-2 (File No.333-13703)
           and incorporated herein by reference).
    23.1   Consent   of   BDO  Seidman,  LLP,  independent   certified   public 
           accountants.*
    23.2   Consent of  Lowenstein  Sandler  PC  (included in Exhibit 5.1 to this
           registration statement).
    24.1   Power of Attorney.*
<PAGE>
    27.1   Financial Data Schedule.*

__________
*  Previously filed.


Item 28.  Undertakings

    The undersigned registrant hereby undertakes:

          (1) For the purpose of determining  any liability under the Securities
     Act of 1933, as amended (the  "Securities  Act"),  the information  omitted
     from the form of Prospectus filed as part of this Registration Statement in
     reliance upon Rule 430A and contained in a form of Prospectus  filed by the
     registrant pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities
     Act, shall be deemed a part of this  Registration  Statement as of the time
     it was declared effective.

          (2) For the purposes of determining any liability under the Securities
     Act, each post-effective amendment that contains a form of Prospectus shall
     be deemed to be a new  registration  statement  relating to the  securities
     offered therein,  and the offering of such securities at that time shall be
     deemed to be the initial bona fide offering thereof.

          (3)  Insofar as  indemnification  for  liabilities  arising  under the
     Securities  Act may be permitted  to  directors,  officers and  controlling
     persons  of  the  Registrant  pursuant  to  the  foregoing   provisions  on
     indemnification,  or otherwise, the Registrant has been advised that in the
     opinion of the Securities and Exchange  Commission such  indemnification is
     against public policy as expressed in the Securities Act and is, therefore,
     unenforceable.  In the event that a claim for indemnification  against such
     liabilities  (other than the payment by the Registrant of expenses incurred
     or paid by a director,  officer or controlling  person of the Registrant in
     the  successful  defense of any action,  suit or proceeding) is asserted by
     such  director,  officer  or  controlling  person  in  connection  with the
     securities being registered,  the Registrant will, unless in the opinion of
     its counsel the matter has been settled by controlling precedent, submit to
     a  court  of   appropriate   jurisdiction   the   question   whether   such
     indemnification  by it  is  against  public  policy  as  expressed  in  the
     Securities  Act and will be  governed  by the  final  adjudication  of such
     issue.

<PAGE>

                                   SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form SB-2 and  authorizes  this  amendment  to the
registration statement to be signed on its behalf by the undersigned,  thereunto
duly authorized, in the Borough of New Providence, State of New Jersey, on March
30, 1998.

                                         BARRINGER  TECHNOLOGIES INC.

                                         By: /s/ Stanley S. Binder 
                                         Stanley S. Binder, President and
                                         Chief Executive Officer

            Signature                                  Title

       /s/ Stanley S. Binder             President, Chief Executive Officer 
                                         (Principal Executive Officer) and 
                                         Director
       Stanley S. Binder

       *                                 Director
       John D. Abernathy

       *                                 Director
       Richard D. Condon

       *                                 Director
       John H. Davies

       *                                 Director
       John J. Harte

       *                                 Director
       James C. McGrath

       /s/ Richard S. Rosenfeld          Vice President-Finance, Chief Financial
                                         Officer   Richard  S.  Rosenfeld   and 
                                         Treasurer  (Principal  Accounting   
                                         Financial Officer)

       *By:  /s/ Stanley S. Binder  
            Stanley S. Binder,
            Attorney-in-Fact

<PAGE>

                                INDEX TO EXHIBITS

 Exhibit No.                            Description                    Page

1.1  Form of Underwriting Agreement.*

3.1  Certificate of Incorporation of the Company, as amended.*

3.2  By-laws of the Company  (previously  filed as Exhibit 3.2A to the Company's
     Annual Report on Form 10-K/A-2 for the fiscal year ended  December 31, 1994
     (File No. 0-3207) and incorporated herein by reference).

5.1  Opinion of Lowenstein Sandler PC.

10.1 Amended and Restated Employment  Agreement,  dated as of December 31, 1997,
     between the Company and Stanley S. Binder.

10.2 Employment  Agreement,  dated  November  1, 1996,  between  the Company and
     Richard S.  Rosenfeld  (previously  filed as Exhibit 10.2 to the  Company's
     Registration  Statement on Form SB-2 (File No.  333-13703) and incorporated
     herein by reference).

10.3 Employment  Agreement,  dated  November  1, 1996,  between  the Company and
     Kenneth  S.  Wood  (previously  filed  as  Exhibit  10.3  to the  Company's
     Registration  Statement on Form SB-2 (File No.  333-13703) and incorporated
     herein by reference).  

10.4 Consulting Agreement,  dated as of January 1, 1991, between the Company and
     John  J.  Harte   (previously  filed  as  Exhibit  10.4  to  the  Company's
     Registration  Statement on Form SB-2 (File No.  333-13703) and incorporated
     herein by reference).

10.5 Form of 1995  nonqualified  stock  option  agreement  (previously  filed as
     Exhibit 10.6 to the Company's Registration Statement on Form SB-2 (File No.
     333-13703)  and  incorporated  herein  by  reference).

10.6 Form of 1996  nonqualified  stock  option  agreement  (previously  filed as
     Exhibit 10.3 to the Company's Registration Statement on Form SB-2 (File No.
     333-13703) and incorporated herein by reference).

10.7 Description of 1991 Warrant Plan  (previously  filed as Exhibit 10.8 to the
     Company's  Registration  Statement  on Form SB-2 (File No.  333- 13703) and
     incorporated herein by reference).


10.8 Description  of  Exercise  Plan  (previously  filed as Exhibit  10.9 to the
     Company's  Registration  Statement  on Form SB-2 (File No.  333-13703)  and
     incorporated herein by reference).

10.9 Barringer Technologies Inc. 1997 Stock Compensation Program.* 

10.10  License Agreement,  dated February 27, 1989, between Canadian Patents and
       Development  Limited - Societe  Canadienne Des Brevets Et  D'Exploitation
       Limite and  Barringer  Instruments  Limited  (the  "License  Agreement"),
       Supplement  #1,  dated March 4, 1991,  Assignment  of License  Agreement,
       dated  January 2, 1992,  to Her Majesty the Queen in Right of Canada,  as
       Represented By the Minister of National Revenue and  Supplemental  Letter
       Agreement,  dated October 7, 1996  (previously  filed as Exhibit 10.10 to
       the Company's  Registration  Statement on Form SB-2 (File No.  333-13703)
       and incorporated herein by reference).

10.11  Letter Agreement,  dated July 25, 1997, by and between Barringer Research
       Limited and Her Majesty the Queen in Right of Canada,  as  Represented By
       the Minister of National  Revenue.* 

10.12  Termination  Agreement,  dated  October 7, 1996,  between the Company and
       Barringer  Laboratories  Inc.  (previously  filed as Exhibit 10.11 to the
       Company's  Registration  Statement on Form SB-2 (File No.  333-13703) and
       incorporated herein by reference). 


10.13  Warrant  Agreement by and between the Company and American Stock Transfer
       &  Trust  Company  (previously  filed  as  Exhibit  4.1 to the  Company's
       Registration Statement on Form SB-2 (File No. 333-13703) and incorporated
       herein by reference).

10.14  Form of Warrant issued to Janney Montgomery Scott Inc.  (previously filed
       as Exhibit 4.2 to the Company's Registration Statement on Form SB-2 (File
       No. 333-13703) and incorporated herein by reference).  

10.15  Lease, dated as of February 17, 1993, between the Company and Murray Hill
       Associates   (previously   filed  as  Exhibit   10.17  to  the  Company's
       Registration Statement on Form SB-2 (File No. 333-13703) and incorporated
       herein by reference).

10.16  Lease,  dated as of July 27, 1995, between Barringer Research Limited and
       Lehndorff  Management  Limited  (previously filed as Exhibit 10.18 to the
       Company's  Registration  Statement on Form SB-2 (File No.  333-13703) and
       incorporated herein by reference). 

10.17  Letter  Agreement,  dated February 20, 1998 by  and between  the  Company
       and The  Boyle  Company.*  

10.18  Supplemental Executive Retirement Plan.

10.19  Revolving  Credit Note dated March 13, 1998 between the Company and Fleet
       Bank, N.A.

10.20  Unlimited  Guaranty  of Payment  and  Performance  dated  March 13,  1998
       between the Company and Fleet Bank, N.A.

10.21  Revolving  Credit Loan Agreement  dated March 13, 1998 among the Company,
       Barringer  Instruments,  Inc., Barringer Research Limited and Fleet Bank,
       N.A.

23.1   Consent of BDO Seidman, LLP, independent certified public accountants.*

23.2   Consent  of  Lowenstein  Sandler  PC  (included  in  Exhibit  5.1 to this
       registration statement).

24.1   Power of Attorney.* 

27.1   Financial Data Schedule.* 

______________________
  * Previously filed.



                                  EXHIBIT 5.1


John D. Hogoboom                          Tel  973.597.2382  Fax  973.597.2383
Member of the Firm                        [email protected]


March 27, 1998


Barringer Technologies Inc.
219 South Street
Murray Hill, New Jersey 07974

Dear Sirs:

In connection with the registration under the Securities Act of 1933, as amended
(the "Act"), of (i) 2,270,000 shares (the "New Shares") of the Common Stock, par
value $.01 per share (the "Common  Stock"),  of Barringer  Technologies  Inc., a
Delaware  corporation  (the "Company")  (together with any additional New Shares
that may be registered  pursuant to a registration  statement  filed pursuant to
Rule 462(b) of the Act), and (ii) 30,000 shares (the "Previously Issued Shares")
of Common Stock (together with any additional  Previously Issued Shares that may
be registered pursuant to a registration statement filed pursuant to Rule 462(b)
of the Act), we have examined such  corporate  records,  certificates  and other
documents,  and  such  questions  of law,  as we have  considered  necessary  or
appropriate for the purposes of this opinion.

Upon the basis of such examination, we advise you that, in our opinion:

1. When the Registration Statement has become effective under the Act, the terms
of the issue and sale of the New Shares have been duly established in conformity
with the  Company's  Certificate  of  Incorporation,  as  amended,  so as not to
violate any  applicable law or result in a breach of any agreement or instrument
binding on the Company and so as to comply with any  requirement  or restriction
imposed by any court or governmental body having  jurisdiction over the Company,
and the New  Shares  have  been  duly  issued  and sold as  contemplated  in the
Registration  Statement,  the New Shares will be validly issued,  fully paid and
non-assessable.

2. Assuming that, at the time of the issuance of the  Previously  Issued Shares,
the  Company  received  payment  of the full  consideration  therefor  in a form
authorized pursuant to the provisions of the Delaware General Corporation Law as
in effect at the time of such issuance,  the Previously  Issued Shares have been
validly issued, fully paid and are non-assessable.

The  foregoing  opinion is limited to the Federal laws of the United  States and
the General  Corporation Law of the State of Delaware,  and we are expressing no
opinion as to the effect of the laws of any other jurisdiction.

In rendering this opinion,  we have relied as to certain  matters on information
obtained  from public  officials,  officers  of the  Company  and other  sources
believed by us to be responsible.

We  hereby  consent  to  the  filing  of  this  opinion  as an  exhibit  to  the
Registration   Statement  (and  any  registration   statement  relating  to  the
Registration  Statement  filed  pursuant  to Rule  462(b) of the Act) and to the
references to us under the heading "Legal  Matters" in the  Prospectus  relating
thereto.  In giving such  consent,  we do not  thereby  admit that we are in the
category of persons whose consent is required under Section 7 of the Act.


Very truly yours,


/s/ Lowenstein Sandler PC




                                  EXHIBIT 10.1

                    AMENDED AND RESTATED EMPLOYMENT AGREEMENT

     AMENDED  AND  RESTATED  EMPLOYMENT  AGREEMENT  (this  "Agreement"),   dated
December 31, 1997, by and between  Barringer  Technologies  Inc. (the "Company")
and Stanley S. Binder (the "Executive"), residing at 32 Corey Lane, Mendham, New
Jersey 07945.

                              W I T N E S S E T H:

     WHEREAS,  on December 31, 1997,  the Executive  and the Company  originally
entered into this Agreement, which set forth the terms and conditions upon which
the  Executive  shall  continue to serve as the  Chairman of the Board and Chief
Executive Officer of the Company; and

     WHEREAS, the Executive and the Company wish to amend and restate certain of
the provisions of this Agreement to correctly reflect the current  understanding
of the parties with respect to such terms and conditions,  all as more fully set
forth herein;

     NOW, THEREFORE,  in consideration of the mutual covenants contained herein,
the parties hereto agree as follows:

     Section  1. Term of  Employment.  The  Executive's  employment  under  this
Agreement  shall  commence  on January 1, 1998 (the  "Commencement  Date")  and,
subject to earlier  termination  pursuant  to Section 6 hereof,  shall  continue
until  December 31, 2002 (the  "Term").  The  Executive  hereby  represents  and
warrants  that  (i) he has the  legal  capacity  to  execute  and  perform  this
Agreement,  (ii)  this  Agreement  is a  valid  and  binding  obligation  of the
Executive  enforceable  against  him in  accordance  with its  terms,  (iii) the
Executive's  service hereunder will not conflict with, or result in a breach of,
any agreement,  understanding,  order, judgment or other obligation to which the
Executive  is  presently  a party  or by  which  he may be  bound,  and (iv) the
Executive  is not subject  to, or bound by, any  covenant  against  competition,
confidentiality  obligation  or any other  agreement,  order,  judgment or other
obligation  which would conflict with,  restrict or limit the performance of the
services to be provided by him hereunder.

     Section 2. Position and Duties.  During the Term, the Executive shall serve
as the Chairman and Chief  Executive  Officer of the Company and shall have such
powers and duties as are commensurate with such position and as may be conferred
upon him  from  time to time by the  Board  of  Directors  of the  Company  (the
"Board").  During the Term,  and except for illness or incapacity and reasonable
vacation periods consistent with Section 3 below, the Executive shall reasonably
devote all of his business time, attention, skill and efforts exclusively to the
business  and  affairs  of the  Company  and its  subsidiaries  and  affiliates;
provided,  however,  that the Executive may engage in  charitable,  educational,
religious,  civic and similar types of activities  (all of which shall be deemed
to  benefit  the  Company),  speaking  engagements,  membership  on the board of
directors  of other  organizations  (to the  extent  approved  in advance by the
Board), and similar activities to the extent that such activities do not inhibit
or prohibit the performance 

<PAGE>

of his duties hereunder or inhibit or conflict with the business of the Company,
its subsidiaries and affiliates.

     Section 3. Compensation.  For all services rendered by the Executive in any
capacity  required  hereunder during the Term,  including,  without  limitation,
services as an executive  officer,  director,  or member of any committee of the
Company or any subsidiary, affiliate or division thereof, the Executive shall be
compensated as follows:

     (a) The  Company  shall  pay the  Executive  a fixed  salary at the rate of
$250,000  per annum or such higher (but never lower)  annual  amount as is being
paid from time to time  pursuant to the terms hereof ("Base  Salary").  The Base
Salary shall be subject to such periodic  review and such periodic  increases as
the Board shall deem  appropriate  in accordance  with the  Company's  customary
procedures and practices regarding the salaries of senior officers.  Base Salary
shall be payable in  accordance  with the  customary  payroll  practices  of the
Company, but in no event less frequently than bi-weekly.

     (b) Provided that the Executive remains actively employed by the Company on
a full-time  basis, the Company shall pay the Executive a special bonus (each, a
"Special  Bonus") in the  respective  amounts  set forth below if, in any fiscal
year during the Term,  "EBITDA" for such fiscal year at least  equals  "Targeted
EBITDA" for such fiscal year; provided, however, that the Executive shall not be
entitled to receive more than three Special Bonuses during the Term.

     Special Bonus Number                            Special Bonus Amount

           One                                              $65,000
           Two                                              $65,000
           Three                                            $70,000

Any Special Bonus payable to the Executive  hereunder shall accrue as of the end
of the  applicable  fiscal  year but shall be paid no later than March 31 of the
year immediately  succeeding the end of the fiscal year in respect of which such
Special Bonus has been earned.

     For purposes of this Section 3(b),  "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 

<PAGE>

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  accounted for as a pooling of
interests  accrued  prior to the date such entity is  acquired  by the  Company.
"Targeted EBITDA" for any fiscal year shall be as set forth in the annual budget
for such  fiscal year  prepared by  management  of the  Company  (including  the
Executive) and approved by the Board.

     All  determinations  of  EBITDA  hereunder  shall be made by the  Company's
independent public accountants, which determinations shall be final, binding and
conclusive  on the  Executive  and the Company,  absent  clear  mistake or other
manifest error.

     (c) The Executive shall be entitled to participate in the Company's  Annual
Incentive Plan or any successor plan (the "Annual Incentive  Plan"),  which plan
provides for the payment of incentive  cash  compensation  to key officers based
upon the  performance of the Company and the officer's  individual  performance.
The Company shall pay the Executive such amounts, if any, as shall become due to
the  Executive  from time to time under the  Annual  Incentive  Plan.  A summary
description  of the terms of the Annual  Incentive  Plan is  attached  hereto as
Exhibit A.

     (d) The Executive  also shall be entitled to  participate  in the Company's
Supplemental  Executive Retirement Plan or any successor plan (the "SERP Plan"),
which plan provides for contributions by the Company to accounts  maintained for
the benefit of certain senior  executive  officers of the Company based upon the
performance  of the Company.  The Company shall pay to the  Executive's  account
such amounts, if any, as shall become due from time to time under the SERP Plan.
A  summary  description  of the  terms of the SERP  Plan is  attached  hereto as
Exhibit B.

     (e) Within 30 days of the date hereof, the Executive Compensation Committee
of the Board (the  "Committee")  shall,  pursuant to the terms of the  Company's
1997 Stock Compensation Program (the "Program"),  grant to the Executive options
(the "Options")  covering 50,000 shares of the Company's common stock, par value
$.01 per share (the "Common Stock").  The Options may be incentive stock options
or non-qualified options, as determined by the Committee. The Options shall have
an exercise  price  (subject to adjustment as specified in the Program) equal to
the Fair  Market  Value (as such term is defined in the  Program)  of the Common
Stock  underlying the Options on the date of grant, and shall be governed by and
subject to the terms and conditions of the Program (except as otherwise provided
for in Section 6 hereof).

     (f) Subject to compliance  with the terms of Section 4 hereof,  the Company
shall reimburse the Executive for the Executive's actual out-of-pocket  expenses
of leasing a car of the Executive's choice and all related maintenance, repairs,
insurance and other expenses, subject to a monthly cap of $750.

<PAGE>

     (g) The Base Salary in effect from time to time shall be  increased  by any
premiums  paid by the  Executive to obtain and  maintain a disability  insurance
policy  (together  with  any  replacement   disability   insurance  policy,  the
"Disability  Policy")  providing the Executive  with payments  equal to not more
than 65% of his Base Salary as in effect from time to time in the event that the
Executive becomes permanently  disabled and containing such terms and conditions
as the Board or the Executive  Compensation  Committee of the Board may approve.
The Executive shall be the owner of the Disability  Policy and the Company shall
have no obligation to maintain the Disability  Policy or incur any out-of-pocket
expense in connection therewith.  The Executive shall provide the Company with a
true and complete copy of any Disability  Policy maintained by the Executive and
shall provide the Company with such other information  (including access to such
medical  and  other  records  relating  to the  Executive)  as the  Company  may
reasonably request from time to time.

     (h) The Company shall maintain a term insurance  policy (the "Term Policy")
insuring the life of the Executive with a mutually acceptable  insurance company
in an amount of not less than $1,000,000 at no cost to the Executive (except any
associated  tax  liability)  with  the  beneficiary  to  be  designated  by  the
Executive.  In the event that the Executive's  employment is terminated pursuant
to the terms  hereof,  the Company shall assign its rights under the Term Policy
to the Executive for no additional  consideration  and,  subject to the terms of
the Term  Policy,  the  Executive  shall have the right to assume the  Company's
obligations thereunder.  Upon such assignment, the Company shall have no further
obligation with respect to the Term Policy.

     (i) Subject to compliance  with the terms of Section 4 hereof,  the Company
shall reimburse the Executive for the actual out-of-pocket  expenses incurred by
the Executive in obtaining personal financial  planning,  tax or legal services,
subject to a cap of $15,000 for expenses incurred prior to the first anniversary
of the  Commencement  Date and $5,000 for  expenses  incurred in each  remaining
calendar year during the Term.

     (j) The  Executive  shall be  entitled  to five weeks of  vacation  in each
calendar year during the Term; provided,  however,  that the Executive shall not
be  entitled  to  carryover  vacation  from one year to any other year or to any
payment in respect of any unused or accrued vacation.

     (k) The Company also will furnish the Executive, without cost to him except
any associated tax liability,  with  perquisites  consistent with those afforded
other senior  executives  holding  positions with the Company  comparable to the
position held by the Executive.

     (l) Except as expressly  modified by the terms hereof,  the Executive shall
be entitled to participate  in all  compensation  and employee  benefit plans or
programs, and to receive all benefits, perquisites and emoluments, for which any
salaried  employees of the Company are eligible under any plan or program now or
hereafter  established  and  maintained  by the Company,  to the fullest  extent
permissible under the general terms and provisions of such plans or programs

<PAGE>
and in accordance with the provisions  thereof.  Notwithstanding  the foregoing,
nothing in this  Agreement  shall  preclude the amendment or  termination of any
such plan or program,  including,  without limitation, the Annual Incentive Plan
and the SERP Plan;  provided,  that, such amendment or termination is applicable
generally to the senior officers of the Company or any subsidiary or affiliate.

     Section 4. Business  Expenses.  Subject to any applicable  limitations  set
forth in Section 3, the Company  shall pay or reimburse  the  Executive  for all
reasonable travel or other expenses incurred by the Executive in connection with
the performance of his duties and obligations  under this Agreement,  subject to
the  Executive's  presentation  of appropriate  vouchers in accordance with such
procedures as the Company may from time to time  establish  for senior  officers
and to preserve any deductions for Federal income taxation purposes to which the
Company may be entitled.

     Section 5. Reserved.

     Section 6. Termination of Employment; Effects Thereof.

     (a) The Company shall have the right,  upon  delivery of written  notice to
the Executive,  to terminate the Executive's  employment  hereunder prior to the
expiration  of the Term (i) pursuant to a Termination  for Cause,  (ii) upon the
Executive's  becoming Permanent  Disabled,  or (iii) pursuant to a Without Cause
Termination;  provided,  however, that, without the Executive's written consent,
no Without Cause  Termination  shall be effective until 60 days after receipt by
the Executive of written notice of termination  from the Company.  The Executive
shall  have the  right,  upon  delivery  of written  notice to the  Company,  to
terminate the  Executive's  employment  hereunder prior to the expiration of the
Term  (i)  pursuant  to a  termination  for  Good  Reason,  (ii)  following  the
occurrence of Change in Control Event upon  compliance  with the  procedures set
forth in Section 6(f), or (iii) in the Executive's  sole  discretion;  provided,
however,  that,  without the Company's  written  consent,  no termination of the
Executive's  employment pursuant to this sentence shall be effective without the
Company's  consent until 90 days after receipt by the Company of written  notice
of termination from the Executive.  The Executive's  employment  hereunder shall
terminate  automatically without action by any party hereto upon the Executive's
death.

     (b) In the event that the Company  terminates  the  Executive's  employment
pursuant  to a  Without  Cause  Termination,  or the  Executive  terminates  his
employment for Good Reason, the Company shall pay the Executive a lump sum equal
to 2.99 times the  Executive's  annual  Base  Salary as in effect at the time of
such termination, together with any earned but unpaid Base Salary as of the date
of termination of employment. In addition,  subject to the provisions of Section
3(l), the Company shall pay the Executive an amount  determined under the Annual
Incentive Plan in respect of the year in which the  termination of employment is
effective assuming (i) the Executive has met all of his personal  objectives pro
rated for such year,  and (ii) the total  bonus pool under the Annual  Incentive
Plan for such year is based upon the level of the Company's  performance through
the  end  of  the  month  immediately  preceding  the  effective  date  of  such
termination  with such  performance  being  annualized for the year in which the

<PAGE>

termination  of  employment  is  effective.  The  Company  also shall pay to the
Executive  (or as the  Executive  may  otherwise  direct) all amounts  which the
Executive is entitled to pursuant to the SERP Plan (whether vested or unvested).
Further,  notwithstanding the terms of the Company's stock compensation programs
or the terms of any agreement  between the Company and the Executive  evidencing
an award to the  Executive,  (i) all stock  options and other awards  previously
granted to the Executive  shall become  immediately  payable (in the case of any
awards which do not require  further  payment or exercise by the  Executive)  or
exercisable  for a period of six  months  following  the  effective  date of the
termination of the Executive's  employment,  and (ii) any stock options or other
awards  previously  granted to the Executive which have not been exercised on or
before the end of such six-month period shall expire and shall be null and void.
The  Company  shall  continue  to provide  the  Executive  and his  spouse  with
continued  group   hospitalization,   health  and  medical  insurance   coverage
consistent  with and  pursuant to the terms of the medical  plan,  if any,  then
maintained by the Company for its employees  until the Executive  reaches age 65
or, in the event the Executive  dies prior to attaining age 65, until his spouse
becomes  eligible  for  medical  benefits  provided  pursuant to Medicare or any
successor  program.  Neither the  Executive  nor his spouse shall be required to
contribute  to the  cost of  such  coverage  (except  for  any  deductibles  and
co-payments  generally  applicable to  participants  in such medical plan).  The
Executive  acknowledges  that the medical benefits  coverage provided to him and
his spouse hereunder shall run concurrently with any period of coverage to which
the  Executive  or his spouse may be  entitled  under the  Consolidated  Omnibus
Budget  Reconciliation  Act  of  1985,  as  amended  ("COBRA").  Any  period  of
continuation  coverage  under COBRA shall be measured from the effective date of
the termination of the Executive's  employment hereunder.  The Executive and his
spouse will have the statutory period after the termination of his employment to
elect  continued  COBRA  coverage.  No other payments shall be made, or benefits
provided,  by the Company under this Agreement  except as otherwise  required by
law.

     (c) In the event that the Company  terminates  the  Executive's  employment
pursuant to a Permanent  Disability,  the Company  shall pay the  Executive  any
earned but unpaid Base Salary as of the date of termination  of employment  and,
subject to the  provisions  of Section  3(l),  shall pay the Executive an amount
determined  under the Annual  Incentive Plan in respect of the year in which the
termination of employment is effective assuming (i) the Executive has met all of
his personal  objectives  pro rated for such year, and (ii) the total bonus pool
under the  Annual  Incentive  Plan for such year is based  upon the level of the
Company's  performance  through the end of the month  immediately  preceding the
effective date of such termination  with such  performance  being annualized for
the year in which the  termination of employment is effective.  The Company also
shall pay to the  Executive  (or as the  Executive  may  otherwise  direct)  all
amounts  which the  Executive is entitled to pursuant to the SERP Plan  (whether
vested or unvested). All stock options or other awards previously granted to the
Executive  that  have  not  vested  on or  before  the  effective  date  of  the
termination of the Executive's  employment will immediately  expire and shall be
null and void as of the date of termination and all options or awards previously
granted to the Executive that have vested on or before the effective date of the
termination  of the  Executive's  employment  shall be payable or exercisable as
specified in the stock  compensation  program or other  arrangement  pursuant to
which such options or awards were granted to the  Executive.  No other  payments
shall be made, or benefits provided,  by the Company under this Agreement except
as otherwise required by law.

<PAGE>

     (d) In the event that the Company  terminates  the  Executive's  employment
hereunder  due to a  Termination  for  Cause  or the  Executive  terminates  his
employment  with the  Company  other than for Good  Reason  (including,  without
limitation,  pursuant to any  retirement  plan or policy then  maintained by the
Company),  the Company shall pay the Executive any earned but unpaid Base Salary
as of the date of termination  of employment.  The Company also shall pay to the
Executive (or as the  Executive may otherwise  direct) all amounts then credited
to the  Executive's  account  pursuant  to the SERP Plan that have  vested on or
before the effective date of the termination of the  Executive's  employment and
all  amounts  then so credited  that have not vested on or before the  effective
date of the termination of the Executive's  employment  shall be forfeited.  The
Executive  shall not be entitled to participate in the Annual  Incentive Plan in
respect  of the  year in  which  termination  of his  employment  occurs  or any
subsequent year.  Notwithstanding  the terms of the Company's stock compensation
programs or the terms of any  agreement  between  the Company and the  Executive
evidencing  an award to the  Executive,  (i) all stock  options and other awards
previously  granted  to the  Executive  that have not  vested  on or before  the
effective date of the termination of the Executive's employment shall expire and
shall be null and void,  (ii) all stock  options  and  other  awards  previously
granted to the Executive  that have vested on or prior to the effective  date of
the termination of the Executive's  employment  shall be payable (in the case of
any awards which do not require further payment or exercise by the Executive) or
exercisable  for a period of three months  following the  effective  date of the
termination of the Executive's  employment,  and (iii) any such stock options or
other  awards  which  have  not  been  exercised  on or  before  the end of such
three-month  period shall expire and shall be null and void.  No other  payments
shall be made, or benefits provided, by the Company whether under this Agreement
or otherwise except to the extent required by law.

     (e) In the event that the  Executive's  employment  hereunder is terminated
due to the Executive's death, the Company shall pay the Executive's  executor or
other legal  representative  (the  "Representative")  any earned but unpaid Base
Salary  as of  the  date  of  termination  of  employment  and,  subject  to the
provisions of Section 3(l), shall pay the  Representative  an amount  determined
under the Annual  Incentive Plan in respect of the year in which the Executive's
death occurs  assuming (i) the Executive has met all of his personal  objectives
pro rated  for such  year,  and (ii) the  total  bonus  pool  under  the  Annual
Incentive  Plan  for  such  year  is  based  upon  the  level  of the  Company's
performance  through the end of the month immediately  preceding the Executive's
death  with  such  performance  being  annualized  for  the  year in  which  the
Executive's death occurs;  provided, that, the amount paid to the Representative
shall be pro rated for the number of complete  months  preceding the Executive's
death.  In  addition,  the Company  shall pay to the  Representative  (or as the
Representative may otherwise direct) all amounts which the Executive is entitled
to pursuant to the SERP Plan (whether vested or unvested).  All stock options or
other  awards  previously  granted to the  Executive  that have not vested on or
before the Executive's death will immediately  expire and shall be null and void
as of the date of death and all  options  or awards  previously  granted  to the
Executive that have vested on or before the  Executive's  death shall be payable
or  exercisable  by the  Representative  as specified in the stock  compensation
program  or other  arrangement  pursuant  to which such  options or awards  were
granted to the Executive. No other payments shall be 

<PAGE>
made,  or benefits  provided,  by the  Company  under this  Agreement  except as
otherwise required by law.

     (f) If a Change in  Control  Event  occurs,  the  Executive  shall have the
right, in his sole discretion, to elect to terminate his employment by providing
written  notice  of his  election  to the  Company  within  180 days  after  the
occurrence of such Change in Control Event. Any termination of employment by the
Executive  pursuant to this Section 6(f) shall be deemed to be a termination for
Good Reason and shall have the effects set forth in Section 6(b) hereof.

     (g) For purposes of this Agreement,  the following terms have the following
meanings:

               (i) The term "Termination for Cause" means, to the maximum extent
          permitted  by  applicable   law,  a  termination  of  the  Executive's
          employment by the Company  because the  Executive  has (a)  materially
          breached or materially  failed to perform his duties under  applicable
          law and such breach or failure to perform  causes  material  damage to
          the Company or constitutes  self-dealing  or willful  misconduct,  (b)
          intentionally committed an act of dishonesty in the performance of his
          duties  hereunder  that  either  constitutes   self-dealing,   willful
          misconduct,  a  breach  of  duty  to the  Company  or a  violation  of
          applicable law, (c) engaged in conduct  detrimental to the business of
          the Company  which causes  material  damage to the  Company,  (d) been
          convicted of a felony,  (e) been convicted of a misdemeanor  involving
          moral  turpitude,  (f)  materially  breached or  materially  failed to
          perform his obligations and duties hereunder,  which breach or failure
          the Executive shall fail to remedy within 30 days after written demand
          from  the  Company,  or (g)  violated  in  any  material  respect  the
          representations made in Section 1 above or the provisions of Section 7
          below.

               (ii)  The  term  "Good  Reason"   means  a  termination   of  the
          Executive's  employment  by  the  Executive  due to a  failure  of the
          Company or its  successors  without the prior consent of the Executive
          to fulfill  its  obligations  under  this  Agreement  in any  material
          respect,  including (a) any failure to elect or re-elect or to appoint
          or reappoint  the Executive to the office of Chairman of the Board and
          Chief Executive  Officer (or any equivalent  title with  substantially
          similar  duties),  (b) any other material change by the Company in the
          functions, duties or responsibilities of the Executive's position with
          the  Company  which  would  materially  reduce  the  ranking or level,
          dignity, responsibility,  importance or scope of such position, or (c)
          the  termination  or amendment of either the Annual  Incentive Plan or
          the SERP Plan so as to materially diminish the benefits expected to be
          enjoyed  by the  Executive  thereunder;  provided,  however,  that for
          purposes  of this  clause (c),  "Good  Reason"  shall not exist if the
          termination or amendment (i) occurs in connection with the adoption or
          modification  of another  plan having a purpose  similar to the Annual
          Incentive  Plan or the SERP  Plan,  as the case may be,  in which  the
          Executive is eligible to  participate  and, after giving effect to the
          adoption or modification of such other plan, the aggregate net benefit
          expected  to 

<PAGE>

          be  enjoyed  by the  Executive  under  such  plans  is not  diminished
          materially,  or (ii) was  reasonably  required in order to comply with
          applicable law, rule or regulation.

               (iii) The term "Without Cause Termination" means a termination of
          the  Executive's  employment  by the  Company  other than due to (i) a
          Termination   for  Cause,   (ii)  Permanent   Disability,   (iii)  the
          Executive's death, or (iv) the expiration of this Agreement.

               (iv) The term "Permanent  Disability" means permanently  disabled
          so as to  qualify  for full  benefits  under  the  Disability  Policy;
          provided,  however,  that if no Disability  Policy is in effect on the
          date of determination, "Permanent Disability" shall mean the inability
          of the Executive to perform his duties  hereunder on a full-time basis
          for a period of six full calendar months during any eight  consecutive
          calendar  months  due to  illness  or injury of a  physical  or mental
          nature,  supported  by the  completion  by the  Executive's  attending
          physician  (or a physician  selected  by the  Company  and  reasonably
          satisfactory  to the  Executive  or his  legal  representative  if the
          Executive's  physician is unable or unwilling to provide the necessary
          certification)   of  a  medical   certification   form  outlining  the
          disability and treatment.

               (v) The term "Change in Control Event" 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;

<PAGE>     

                    (C) The Company  shall  consummate a merger,  consolidation,
               recapitalization,  or reorganization  of the Company,  other than
               any such  transaction  which  results 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 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  Company  shall   consummate  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.

     (h) Any  payments  to be made or  benefits  to be  provided  by the Company
pursuant to Section 6(b) or (f) hereof are subject to the receipt by the Company
of an effective  general  release and agreement not to sue in a form  reasonably
satisfactory  to the Company  (the  "Release")  pursuant to which the  Executive
agrees (i) to release all claims against the Company and certain related parties
(excluding  claims for any severance  benefits payable  hereunder),  (ii) not to
maintain any action,  suit, claim or proceeding  against the Company and certain
related  parties,  and (iii) to be bound by certain  confidentiality  and mutual
non-disparagement  covenants specified therein.  Notwithstanding the due date of
any  post-employment  payment,  the Company  shall not be  obligated to make any
payments  under Section 6(b) or (f) until after the expiration of any revocation
period applicable to the Release.

     Section  7.  Other  Duties of  Executive  During  and After  Term.  (a) The
Executive  recognizes and  acknowledges  that all information  pertaining to the
affairs,  business,  clients,  or  customers  of  the  Company  or  any  of  its
subsidiaries  or  affiliates  (any or all of  such  entities  being  hereinafter
referred to as the "Business"), as such information may exist from time to time,
other than information that the Company has previously made publicly  available,
is confidential  information and is a unique and valuable asset of the Business,
access  to and  knowledge  of which  are  essential  to the  performance  of the
Executive's  duties under this Agreement.  In consideration of the payments made
to him  hereunder,  the  Executive  shall not,  except to the extent  reasonably
necessary in the performance of his duties under this Agreement,  divulge to any
person, firm, association,  corporation, or governmental agency, any information
concerning  the  affairs,  businesses,  clients,  or  customers  of the Business
(except  such  information  as is required by law to be divulged to a government
agency or pursuant to lawful  process),  or make use of any such information for
his  own  purposes  or for the  benefit  of any  person,  firm,  association  or
corporation  (except the Business) and shall use his reasonable  best efforts to
prevent  the  disclosure  of  any  such  information  by  others.  All  records,
memoranda,  letters,  books, papers, reports,  accountings,  experience or other
data, and other records and documents relating to the Business,  whether made by
the  Executive  or  otherwise  coming  into  his  possession,  are  confidential
information and are, shall be, and shall remain the property of the Business. No
copies  thereof  shall be made which are not retained by the  Business,  and the
Executive  agrees, on 

<PAGE>

termination of his  employment or on demand of the Company,  to deliver the same
to the Company.

     (b) The Executive  recognizes and  acknowledges  that the Company shall own
all Work Product created by the Executive during the Term. As used herein, "Work
Product" includes, but is not limited to, all intellectual property rights, U.S.
and international copyrights,  patentable inventions, creations, discoveries and
improvements,  works of  authorship  and  ideas,  whether or not  patentable  or
copyrightable  and  regardless of their form or state of  development.  All Work
Product  shall be  considered  work made for hire by the  Executive and shall be
owned by the Company.

     If any of the Work Product may not, by  operation  of law, be  considered a
work made for hire by the  Executive  for the  Company,  or if  ownership of all
right, title and interest of the intellectual  property rights therein shall not
otherwise vest exclusively in the Company,  the Executive shall assign, and upon
creation thereof shall be deemed to have automatically assigned, without further
consideration,  the  ownership  of all such Work  Product to the Company and its
successors and assigns.  The Company,  its successors and assigns shall have the
right  to  obtain  and  hold  in its or  their  own  name  copyrights,  patents,
registrations and other protections available to the Work Product. The Executive
shall, at the Company's expense, assist the Company in obtaining and maintaining
patent,  copyright,  trademark  and other  appropriate  protection  for all Work
Product in all countries.  The Executive hereby irrevocably relinquishes for the
benefit of the Company,  its successors and assigns any moral rights in the Work
Product recognized under applicable law.

     The Executive  shall disclose all Work Product  promptly to the Company and
shall not  disclose the Work  Product to anyone  other than  authorized  Company
personnel  without the Company's prior written consent.  The Executive shall not
disclose to the Company or induce the Company to use any secret or  confidential
information or material belonging to others.

     The  provisions of this Section 7(b) cover Work Product of any kind that is
conceived or made by the Executive  that (i) results from tasks  assigned to the
Executive by the Company, its subsidiaries and affiliates, or (ii) are conceived
or made with the use of  facilities  or materials  provided by the Company,  its
subsidiaries and affiliates.

     (c) In  consideration  of the payments  made to him  hereunder,  during the
two-year  period  commencing on the  effective  date of the  termination  of his
employment  for any reason,  the  Executive  shall not,  without  express  prior
written  approval  of  the  Board,  directly  or  indirectly,  own or  hold  any
proprietary  interest in, or be employed by or receive  remuneration  from,  any
corporation,  limited  liability  company,  business  trust,  partnership,  sole
proprietorship or other entity engaged in competition with the Company or any of
its affiliates (a "Competitor"),  other than  severance-type or  retirement-type
benefits  from  entities  constituting  prior  employers of the  Executive.  The
Executive also shall not, during such two-year  period,  solicit for the account
of any Competitor,  any customer or client of the Company or its affiliates,  or
any  entity  or  individual  that was  such a  customer  or  client  during  the
twelve-month  period  immediately  preceding the  termination of the Executive's
employment.  The Executive also shall not, during 

<PAGE>

such two-year  period,  act on behalf of any  Competitor  to interfere  with the
relationship  between the Company or its  subsidiaries  and affiliates and their
respective employees.

     For  purposes  of  the  preceding  paragraph,  (i)  the  term  "proprietary
interest" means legal or equitable  ownership,  whether through  stockholding or
otherwise,  of an equity  interest  in a  business,  firm or entity  other  than
ownership of less than two percent of any class of equity interest in a publicly
held  business,  firm or entity  and (ii) an entity  shall be  considered  to be
"engaged  in  competition"  if such  entity is, or is a holding  company  for, a
company engaged in the business of designing, manufacturing, assembling, selling
or servicing trace chemical detection  equipment or related software or supplies
anywhere in the world.

     (d) The  Executive  acknowledges  that the  restrictions  contained in this
Section 7 are reasonable  and necessary to protect the  legitimate  interests of
the Company and that any breach by the Executive of any  provision  contained in
this  Section 7 will  result in  irreparable  injury to the  Company for which a
remedy at law would be inadequate.  Accordingly, the Executive acknowledges that
the Company shall be entitled to temporary, preliminary and permanent injunctive
relief against the Executive in the event of any breach or threatened  breach by
the  Executive  of the  provisions  of this  Section 7, in addition to any other
remedy that may be available to the Company whether at law or in equity.

     (e) The Company's obligation to make payments,  or provide for any benefits
under this Agreement  (except to the extent vested or  exercisable)  shall cease
upon a violation  by the  Executive  of the  provisions  of this  Section 7. The
provisions of this Section 7 shall survive any  termination  of the  Executive's
employment with the Company.

     Section 8. Excise Taxes.  Notwithstanding  anything herein to the contrary,
if it is  determined  that any  payment,  coverage  or benefit  provided  to the
Executive  would be subject to the  excise  tax  imposed by Section  4999 of the
Internal  Revenue  Code of 1986,  as amended  (the  "Code"),  or any interest or
penalties  with respect to such excise tax (such excise tax,  together  with any
interest or penalties  thereon,  is herein referred to as an "Excise Tax"), then
the Executive  shall be entitled to one or more  additional  payments  (each,  a
"Gross-up  Payment")  in an amount  that will  place the  Executive  in the same
after-tax economic position that he would have enjoyed if the Excise Tax had not
been imposed.  The amount of each  Gross-up  Payment shall be determined in good
faith by the Company in  accordance  with the formula {(E x (1 - M) / (1 - T)) -
E} (or such other formula as the Company reasonably determines is appropriate to
achieve the same result), where

     E equals the payment, coverage or benefit which is determined to be "excess
parachute payments" within the meaning of Section 280G(b)(i) of the Code;

     M equals the sum of the highest marginal federal and state income tax rates
then applicable to the Executive, net of the effect, if any, of the deduction of
state income taxes on the Executive's federal income tax return; and

<PAGE>

     T equals M plus the rate of Excise Tax applicable to the payment,  coverage
or benefit.

     Any Gross-Up  Payment shall be paid to the Executive in sufficient  time to
enable the Executive to pay any Excise Tax imposed on the Executive.

     Section 9.  Withholdings.  The Company may directly or indirectly  withhold
from any payments made under this  Agreement all Federal,  state,  city or other
taxes and all  other  deductions  as shall be  required  pursuant  to any law or
governmental  regulation or ruling or pursuant to any contributory  benefit plan
maintained by or on behalf of the Company.

     Section  10.  Consolidation,  Merger,  or Sale of  Assets.  Nothing in this
Agreement shall preclude the Company from consolidating or merging into or with,
or transferring  all or  substantially  all of its assets to, or engaging in any
other business  combination  with, any other person or entity which assumes this
Agreement and all obligations and  undertakings of the Company  hereunder.  Upon
such a consolidation,  merger,  transfer of assets or other business combination
and  assumption,  the term "Company" as used herein shall mean such other person
or entity and this Agreement shall continue in full force and effect.

     Section   11.   Notices.   All   notices,   requests,   demands  and  other
communications  required or  permitted  hereunder  shall be given in writing and
shall be deemed to have been duly given if delivered or mailed, postage prepaid,
by same day or overnight mail (i) if to the Executive,  at the address set forth
above with a copy to Hertzog, Calamari & Gleason, 100 Park Avenue, New York, New
York  10017,  attention:  Anthony L.  Paccione,  or (ii) if to the  Company,  as
follows:

                          Barringer Technologies Inc.
                          219 South Street
                          Murray Hill, New Jersey 07974

or to such other  address as either  party shall have  previously  specified  in
writing to the other.

     Section 12. No  Attachment.  Except as required by law, no right to receive
payments under this  Agreement  shall be subject to  anticipation,  commutation,
alienation, sale, assignment,  encumbrance,  charge, pledge, or hypothecation or
to execution, attachment, levy, or similar process or assignment by operation of
law, and any attempt, voluntary or involuntary,  to effect any such action shall
be null, void and of no effect; provided,  however, that nothing in this Section
12 shall preclude the assumption of such rights by executors,  administrators or
other legal  representatives  of the Executive or his estate and their assigning
any rights hereunder to the person or persons entitled thereto.

     Section 13. Expenses.  Except as set forth herein,  each party hereto shall
pay its own expenses  incident to the preparation,  negotiation,  administration
and  enforcement of this  Agreement and the  transactions  contemplated  herein.
Notwithstanding the foregoing, the Company shall reimburse the Executive for the
reasonable  out-of-pocket  expenses incurred by 

<PAGE>

the Executive in connection with the  preparation,  negotiation and execution of
this  Agreement,  subject  to  receipt of  appropriate  invoices  and such other
documentation as the Company may reasonably request.

     Section 14. Source of Payment.  Subject to the terms of the SERP Plan,  all
payments  provided  for  under  this  Agreement  shall be paid in cash  from the
general  funds of the  Company.  Except as may be required  pursuant to the SERP
Plan,  the Company shall not be required to establish a special or separate fund
or other  segregation  of assets to assure  such  payments,  and, if the Company
shall make any investments to aid it in meeting its obligations  hereunder,  the
Executive  shall have no right,  title or  interest  whatever  in or to any such
investments  except as may otherwise be expressly provided in a separate written
instrument  relating to such  investments.  Nothing contained in this Agreement,
and no action taken pursuant to its provisions,  shall create or be construed to
create a trust of any kind, or a fiduciary relationship, between the Company and
the  Executive  or any other  person.  To the extent that any person  acquires a
right to receive  payments  from the  Company  hereunder,  such  right,  without
prejudice to rights which employees may have, shall be no greater than the right
of an unsecured creditor of the Company.

     Section 15.  Binding  Agreement;  No Assignment.  This  Agreement  shall be
binding  upon,  and shall inure to the benefit of, the Executive and the Company
and their respective permitted  successors,  assigns,  heirs,  beneficiaries and
representatives.  This  Agreement  is personal to the  Executive  and may not be
assigned by him without the prior written consent of the Company.  Any attempted
assignment in violation of this Section 15 shall be null and void.

     Section 16. Dispute Resolution.  At the option of either the Company or the
Executive,  any  dispute,  controversy  or  question  arising  under,  out of or
relating to this Agreement or the breach thereof, other than pursuant to Section
7 hereof,  shall be referred  for  decision by  arbitration  in the State of New
Jersey by a neutral  arbitrator  mutually  selected by the parties  hereto.  Any
arbitration   proceeding  shall  be  governed  by  the  Rules  of  the  American
Arbitration  Association  then in effect or such  rules  last in effect  (in the
event such Association is in existence). If the parties are unable to agree upon
such a neutral  arbitrator within 21 days after either party has given the other
written notice of the desire to submit the dispute,  controversy or question for
decision as aforesaid,  then either party may apply to the American  Arbitration
Association  for a  final  and  binding  appointment  of a  neutral  arbitrator,
however,  if such  Association  is not then in  existence or does not act in the
matter  within 45 days of any such  application,  either  party may apply to the
Presiding  Judge  of the  Superior  Court of any  county  in New  Jersey  for an
appointment of a neutral arbitrator to hear the parties and such Judge is hereby
authorized to make such  appointment.  In the event that either party  exercises
the right to submit a dispute,  controversy  or question  arising  hereunder  to
arbitration,  the decision of the neutral arbitrator shall be final,  conclusive
and binding on all interested persons and no action at law or in equity shall be
instituted or, if instituted,  further  prosecuted by either party other than to
enforce the award of the neutral arbitrator. The award of the neutral arbitrator
may be entered in any court that has jurisdiction. The Executive and the Company
shall each bear all their own 

<PAGE>
costs (including the fees and  disbursements of counsel)  incurred in connection
with any such  arbitration  and  shall  each pay  one-half  of the  costs of any
arbitrator appointed hereunder.

     Section  17.  Governing  Law.  This  Agreement  shall be  governed  by, and
construed in  accordance  with,  the  internal  laws of the State of New Jersey,
without reference to the choice of law principles thereof.

     Section 18. Entire  Agreement.  This Agreement shall  constitute the entire
agreement among the parties with respect to the matters covered hereby and shall
supersede all previous written,  oral or implied  understandings among them with
respect  to  such  matters,  including,  but  not  limited  to,  the  Employment
Agreement, dated as of July 10, 1989, between the Company and the Executive.

     Section 19.  Amendments.  This  Agreement  may only be amended or otherwise
modified,  and  compliance  with any provision  hereof may only be waived,  by a
writing executed by all of the parties hereto. The provisions of this Section 19
may only be amended or otherwise modified by such a writing.

     Section 20. Severability.  The invalidity of any provision hereof shall not
affect the validity,  force or effect of the remaining provisions hereof. In the
event that an arbitrator  designated pursuant to the provisions of Section 16 or
a court of competent jurisdiction determines that any provision contained herein
is not  enforceable  as written  because  of the  breadth  or  duration  of such
provision, such arbitrator or court shall have the authority to modify the terms
of such provision so that, as so modified,  such provision  shall be enforceable
to the maximum extent permitted by applicable law.

     Section 21. No Strict Construction. Each of the parties hereto acknowledges
that this  Agreement has been prepared  jointly by the parties  hereto,  each of
whom has been  represented  by  counsel,  and  shall not be  strictly  construed
against either party.

     Section 22.  Counterparts.  This Agreement may be executed in counterparts,
each of which shall be deemed to be an original, and all of which shall together
constitute one and the same instrument.



<PAGE>


     IN WITNESS  WHEREOF,  the  Company  has caused  this  Agreement  to be duly
executed by the undersigned,  thereunto duly  authorized,  and the Executive has
signed this Agreement, all as of the date first written above.


                                           BARRINGER TECHNOLOGIES INC.




                                           By:/s/James C. McGrath
                                              _________________________________
                                              James C. McGrath, Chairman of the
                                              Executive Compensation Committee
                                              of the Board of Directors



                                               /s/Stanley S. Binder
                                               _________________________________
                                               Stanley S. Binder


                                   EXHIBIT A


BARRINGER TECHNOLOGIES, INC.

ANNUAL INCENTIVE PLAN for
EXECUTIVE MANAGEMENT POSITIONS

Purpose

The  purpose  of this  plan  is to  relate  compensation  for  Executive  to the
performance  of the company and their own  performance.  In addition,  this plan
should assist in attracting  and  retaining  outstanding  Executive by rewarding
outstanding  performance.  This plan is also  intended  to foster  the spirit of
teamwork by the officer group.



General Description

The basic format of this plan is to base  incentives  on the  establishment  and
accomplishment  of team and individual goals for each of the Executives  covered
under the plan. In addition,  the plan protects the interest of  shareholders by
limiting the total amount paid in incentives to 10% of net income.



Eligibility for the Plan

The current  eligibility for the plan includes the four officers of the company;
the Chief Executive Officer, the Executive Vice President,  the Vice President &
Secretary, and the Vice President,  Finance-Chief Financial Officer.  Additional
eligibility  may be  determined  by the  Compensation  Committee of the Board of
Directors upon the recommendation of the Chief Executive Officer.


Amounts

Because each of the Executives has a different  impact on the overall results of
the  organization,  the target  incentive  award varies for each position and is
expressed  as a percentage  of actual base salary  effective  for that year.  In
addition to the target  percentage,  there will be the  ability to increase  the
annual incentive by up to 50% for  accomplishment of goals beyond  expectations,
provided  the  overall   results  warrant  this   acceleration.   Should  target
performance  not be fully met by  individuals,  partial bonuses up to 50% of the
targeted amount should be paid if some but not all of the goals are met.

The following table summarizes the amounts:



                                          Partial
                                        Accomplishment
         Position    Target Incentive     of Target        Maximum Incentive

           CEO            50%                25%                 100%

           EVP            40%                20%                 100%

           VP             35%                17-1/2%             100%

           CFO            30%                15%                 100%

If group targets are not met, then no incentive  (0%) should be paid. If targets
are exceeded,  then an  interpolation  between the target amount and the maximum
can be made.


Net Income Limitation

In no case should the amount of incentive paid out under this plan exceed 10% of
net income. The following table illustrates this point:


                                          Target Annual          Target Annual
     Position           Base Salary        Incentive       Incentive in Dollars

        CEO               $250,000            50%                  $125,000

        EVP                167,000            40%                    66,800

        VP                 136,000            35%                    47,600

        CFO                125,000            35%                    43,750

        TOTAL             $678,000            42%                  $283,150

This  payout of  $283,150  would only be  applicable  if net income for the year
exceeded  $2,831,500 using the formula of 10% of net income as the limit. To the
extent that net income is less than this amount,  each individual award would be
scaled back by the ratio of actual net income  compared to the income  necessary
for a full payout.  For example,  if the total annual incentive $'s computed are
$350,000 and net income was $1,500,000, then, each award would be multiplied by:

              $1,500,000  -  actual net income                          =42.8%
              $3,500,000  -  net income necessary for a full payout

<PAGE>

In this way, each award will be scaled back to 42.8% of the computed  amount and
the total  awards  will be  limited  to 10% of net  income:  
                                                  $350,000  x 42.8% = $150,000


Goals

Goals  should be  established  at the  beginning  of the  year.  The CEO and the
Executives  as a group will  establish  team goals which will be approved by the
Executive  Compensation  Committee.  An  example  of  team  goals  would  be the
following:

        1)   Achievement of plan/budget
 
        2)   Accuracy of sales forecasts

        3)   Accuracy of production completion schedule

        4)   Achievement of growth strategy (internal growth and/or acquisition)

        5)   Successful completion of financing plans

        6)   New product development (optional)

In addition,  each of the officers should have individual  goals. The individual
goals should be made up of two components.  The first  component  should be that
officer's portion of the team goals for which they have primary  responsibility.
For example,  the Executive Vice President would have sales and production goals
and the Vice  President  would  have  marketing  and  sales  goals.  The  second
component of individual goals will be personal goals. Examples of personal goals
would  be;  increase  involvement  in  industry   associations,   develop  staff
abilities,  hire or designate a replacement,  etc. Personal goals will be agreed
to by each of the officers  with the Chief  Executive  Officer and for the Chief
Executive Officer, with the Chairman of the Executive Compensation Committee.

Equal weight should be given to the team and the  individual  goals.  Within the
individual goals, superior weight should be given to the individual's portion of
the team goals and less to the personal goals,  although there is no formula for
weighing the importance of the goals.  The formula is 50% for team goals and 50%
for individual goals.

The illustration attached is offered to further clarify this plan.


<PAGE>

Administration of the Plan

The plan is  administered by the Executive  Compensation  Committee of the Board
which has the right to interpret, amend, or cancel the plan at any time. The CEO
will  recommend to the Committee the results of the plan for the year,  with the
exception  of his own  award.  Amounts  should be  accrued  during  the year and
payment, if any, should be at the end of the year.


<PAGE>
                                  ILLUSTRATION

Givens

The base salary of the V.P.  for  Marketing  and Sales is  $167,000.  The target
incentive is 35%. The computed payout to all executives is $275,000.


Goals

The team goals were:

      1.   Achievement of plan/budget - net income of $2,900,000.

      2.   Accuracy of sales forecast - 100 units

      3.   Produce 100 units

The V.P. for Marketing and Sales individual goals were:

      1.   Accuracy of sales forecast - 100 units (one of the team goals)

      2.   Personal goals of

                 hire and develop a technical sales person

                 increase industry involvement with speaking engagements

                 improve communications with major customers
Results

The sales goals of 100 units were achieved.  Unforeseen supply problems limited 
production to 85 units.  All else went well and the net income was $3,000,000.  
All personal goals were accomplished.

  Computation

  The annual incentive for the V.P. would be:

      1/2 of incentive based on team goal
      (team goals was partially on target = 1/2 x 35% x 50%    =       8.75%
      since production goal was only partially achieved

      1/2 of incentive based on individual goal (including personal goals)
      (individual was on target = 1/2 x 35%                      =       17.5%
                                                 Total           =       26.25%

                                            26.25% x $167,000    =   $43,837.50

The limitation on annual incentive would be:

Company earned $3,000,000. For target payout to all executives, the company must
earn $2,750,000. Therefore the payout of $43,837.50 is not modified.

If earnings were only $2,000,000, then the award would be adjusted by:
                      $2,000,000  actual net income           =       72.7%
                       2,750,000  the amount needed for a full payout

The individual award for the V.P. for Marketing and Sales would be:

                  $43,837.50 x 72.7% = $31,870.

And the total  incentives  for all  executives  would be  $200,000.  (10% of net
income)

                                   EXHIBIT B


BARRINGER TECHNOLOGIES

Supplemental Executive Retirement Plan

Purpose:  The  purpose of this plan is to provide a  reasonable  replacement  of
income for Executives of the company upon retirement. The amounts are contingent
on the performance of the company as well as the individual Executive.



General  Description:  This is a  defined  contribution  plan in which a defined
percentage of each executive's annual pay is contributed  annually to an account
in the  executive's  name. The percentage is contingent on company  performance.
Since  the  annual   incentive  is  included  in  the  definition  of  pay,  the
contribution  is  also  contingent  on the  executive's  performance.  The  plan
supplements  the existing  retirement  plan for all employees which is qualified
under  section  401(k)  of the  IRS  code  as  well  as  Social  Security.  This
Supplemental  Executive  Retirement  Plan  is  not  qualified  for  special  tax
treatment,  and  contributions  to the plan are not  deductible for tax purposes
until actual amounts are paid out as compensation  expenses.  Contributions  are
not  taxed to the  executives  until  received.  Contributions  are  charged  to
earnings for the year the contributions are made.



Eligibility:  Eligibility is determined by the Executive  Compensation Committee
of the Board of Directors. The initial eligibility includes:

                  Stanley S. Binder         Chief Executive Officer
                  John H. Davies            Executive Vice President
                  Kenneth S. Woods          Vice President and Secretary
                  Richard S. Rosenfeld      Vice President, Finance - 
                                               Chief Financial Officer

Contributions:  Contributions will be made annually to an account in the name of
each individual in the plan as soon after the final  accounting of the company's
annual results as is practical.

The amount of the annual  contribution  will be a percentage  of the base salary
and annual  incentive of each individual for the year just ended. The percentage
will be  determined  by the  Executive  Compensation  Committee  of the Board of
Directors with the following guidelines:

<TABLE>
<CAPTION>

                                    If no net        If Target net income       Maximum Contribution if
                                    income               is achieved            net income exceeds Target

<S>                                 <C>                     <C>                         <C>
           Stan Binder              0%                      20%                         22%

           John Davies              0%                      20%                         22%

           Ken Woods                0%                       8%                         10%

           Rich Rosenfeld           0%                       8%                         10%

</TABLE>

Contributions  will be on a  sliding  scale.  The  Compensation  Committee  will
interpolate between the percentages between the guidelines where necessary using
as guidance  the amount of net income,  the  relationship  of net income to past
years,  the  overall  economic  environment,  and other  factors  they  consider
relevant.

Investment of Account Balances. Account balances will be invested by the Company
in the same  investment  options  available in the  Company's  401(k) plan.  The
Executives  may indicate the  investment  options of their choice,  although the
Executive Compensation Committee will make the designation of how the funds will
be invested. The earnings accrue to the account of the named Executive. Earnings
of the account are taxable to the  Company  when they are earned.  Earnings  are
deductible by the Company and taxable to the  Executives  when they are paid out
as retirement income to the individual.

The fund balance is made up of Company contributions which are made annually and
earnings or losses which are accrued  periodically  according to the  investment
choice. Mutual funds are valued daily, etc.

Vesting:  Full vesting is 100% after 5 years of plan participation.

Distribution:

           Retirement

           The minimum age for retirement distribution is age 60 with 5 years of
           plan participation.

           Amount

           The individual will be distributed  a  lump sum equal to the account 
           balance,  which  includes  both Company contributions and earnings or
           losses, or a life annuity purchased with the account balance.

           Death or Permanent
           Disability Benefit

          In the  case of death  or  permanent  disability,  the  individual  or
          designated  beneficiary will receive the account balance on that date,
          whether or not the individual is vested.

<PAGE>

           Discharge without Cause or
           Resignation for Good Reason

          The  individual  receives the balance of the account on the designated
          date whether or not the individual is vested.

          Voluntary Resignation

          The individual,  if vested, receives distribution at the later of date
          of termination or age 60. If individual is not vested, account balance
          is forfeited.

          Termination for Cause

          The individual,  if vested,  receives distribution at the later of the
          date of  termination  or age 60. If individual is not vested,  account
          balance is forfeited.

          Change of Control

          If the individual  leaves under the conditions of a change of control,
          the  age and  service  requirements  are  waived  and  the  individual
          received the current balance whether or not the individual is vested.




                                 EXHIBIT 10.18

                           Barringer Technologies Inc.
                          Supplemental Retirement Plan


Preamble

Establishment  and  Intent.  Barringer  Technologies  Inc.,  together  with  its
subisidiaries (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

<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  outstanding

<PAGE>

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.

<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.

<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.

<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.


<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:

<TABLE>

- --------------------- ------------- ---------------------- -----------------------------------
<S>                   <C>           <C>                    <C>   
PARTICIPANT           IF NO EBITDA  IF TARGETED EBITDA IS  MAXIMUM IF EBITDA EXCEEDS TARGETED
                                    ACHIEVED               EBITDA
- --------------------- ------------- ---------------------- -----------------------------------
- --------------------- ------------- ---------------------- -----------------------------------
TIER I                0%             20%                    22%
TIER II               0%              8%                    10%
- --------------------- ------------- ---------------------- -----------------------------------
</TABLE>


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.

<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.

<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.

<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.

<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 

<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.


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

<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.

<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



                              REVOLVING CREDIT NOTE

$5,000,000.00                                           Princeton, New Jersey
                                                        March 13, 1998

         The  undersigned,  BARRINGER  TECHNOLOGIES  INCORPORATED  (the "Maker")
hereby  promises to pay to the order of FLEET BANK,  N.A.  (the  "Payee") as and
when  due as set  forth in the  Loan  Agreement  (as  hereinafter  defined)  the
principal sum of Five Million Dollars ($5,000,000.00) or, if less, the aggregate
principal  amount (as shown by Payee's  records,  which shall  constitute  prima
facie evidence thereof) of all advances  (collectively,  the "Advances") made by
Payee under the  Revolving  Credit  provided for in and made pursuant to Section
2.1 of the Revolving Credit Loan Agreement, dated the date hereof, between Maker
and Payee (the "Loan  Agreement"),  which  Advances  shall be due and payable in
full on or before the Revolving  Credit  Expiration Date, as defined in the Loan
Agreement.  Capitalized  terms used herein and not otherwise  defined shall have
the meanings given such terms in the Loan Agreement.

         The undersigned  further promises to pay to the order of Payee interest
on the unpaid  principal  amounts of the Advances from the  respective  dates on
which the  Advances  are made until such  principal  amounts have been repaid in
full, payable at the times and rates provided in the Loan Agreement.

         Maker hereby waives presentment, demand for payment, notice of dishonor
or acceleration, protest and notice of protest, and any and all other notices or
demands in connection  with the delivery,  acceptance,  performance,  default or
enforcement  of this Note  except  any  notice  expressly  required  in the Loan
Agreement.  This is the Revolving  Credit Note  mentioned in, and is entitled to
the benefits of, the Loan Agreement.

         IN WITNESS WHEREOF, Maker hereby executes this Note on the day and year
first above written.

BARRINGER TECHNOLOGIES INCORPORATED


By: \S\ STANLEY BINDER
    --------------------- 
    Name:   Stanley Binder
    Title:  President

Attest:  \S\ RICHARD S. ROSENFELD 
         ------------------------
         Richard S. Rosenfeld
         Vice President Finance


                  UNLIMITED GUARANTY OF PAYMENT AND PERFORMANCE


         THIS AGREEMENT OF GUARANTY,  dated as of this 13th day of March,  1998,
between Barringer Instruments, Inc., a Delaware corporation, with offices at 219
South Street,  Murray Hill, New Jersey 07974 (, the "Guarantor") and FLEET BANK,
N.A.  with  offices  at 1125  Route  22  West,  Bridgewater,  New  Jersey  08807
(hereinafter, together with any successor and assigns, "Lender").

                              W I T N E S S E T H :

         WHEREAS,  Barringer Technologies  Incorporated,  a Delaware corporation
(the  "Borrower")  is indebted to Bank  pursuant to a certain  Revolving  Credit
Note, of even date herewith (the "Note"),  which  evidences an obligation in the
original maximum principal balance of $5,000,000.00 (the "Loan"); and

                  WHEREAS,  Lender is  unwilling  to enter  into the  assumption
transaction  without further collateral security in the form of an unconditional
guaranty by the Guarantor; and

         WHEREAS,  to  induce  Lender  to grant  the Loan to the  Borrower,  the
Guarantor herein executes the within instrument; and

         NOW,  THEREFORE,  in consideration of the premises contained herein and
the sum of ONE ($1.00) DOLLAR, the receipt of which is hereby acknowledged,  the
undersigned agree as follows:

         1. Guaranty. The Guarantor absolutely and unconditionally guarantees to
Lender the due and prompt  payment,  whether at maturity or by  acceleration  or
otherwise, of the Loan including all principal, interest and other monies due or
that may  become  due under the  documents  evidencing  the loan and the due and
punctual  performance  and observance by Borrower of any other terms,  covenants
and  conditions  of the  Loan  Documents  on the  part of  Borrower  to be kept,
observed or performed  together with all reasonable  legal and other expenses of
collection and enforcement,  including payment of the Loan. The Guarantor hereby
expressly  and  unconditionally   waives  demand,   notice  of  presentment  and
non-payment,  protest and notice of protest,  of said Note and consents that the
time for payment  thereof may be extended by Lender without notice to or further
consent from any Guarantor.

         2. Actions of Lender Do Not Affect  Liability.  In addition to (but not
in limitation  of) all of the foregoing  provisions,  Lender may take any of the
following  actions (with or without notice to any Guarantor)  without  affecting
the liability of any Guarantor in any way:

                  (a) Release, exchange,  increase, decrease or surrender all or
any part of the security held by Lender for the said  obligation,  or substitute
new  security  for all or any portion  thereof,  whether or not the new security
shall be equal in value with the security substituted.

                  (b)  Recast,  extend or modify all or any  portion of the said
obligation.

                  (c) Grant waivers,  extensions,  renewals or other indulgences
under any of the Loan Documents.

                  (d) Modify or amend any of the terms, provisions or agreements
contained in any of the Loan Documents.

                  (e) Vary, exchange, release or discharge, wholly or partially,
or delay in or abstain from  perfecting or enforcing any security or guaranty of
the Loan Documents by any other person.

                  (f)  Accept  partial  payment  or  performance  of  any of the
obligations due under the Loan Documents from the Borrower or any Guarantor.

                  (g)  Compromise or make any  settlement  or other  arrangement
with the Borrower or any Guarantor.

         3.  Liability  Unconditional.  Liability on this Guaranty  shall not be
conditional or contingent upon the pursuance by Lender of whatever remedies that
Lender may have against  Borrower,  nor shall  Lender be required to  foreclose,
exhaust,  or in any other way look for any security  that Lender now has or that
Lender may obtain or acquire in the future.  Lender  shall not be  obligated  or
required to pursue any  remedies it may have against  Borrower,  upon default of
Borrower,  prior to pursuing any remedy against any Guarantor. Not in limitation
of the  generality of the  foregoing,  the liability of any Guarantor  hereunder
shall remain  effective and enforceable even though  Borrower's  liability under
the Loan  Documents may be  unenforceable  or even though  recovery  against the
Borrower  may be barred by a statute  of  limitations  or  otherwise.  Guarantor
waives any  defense  arising  by reason of any  disability  or other  defense of
Borrower  or by  reason of the  cessation,  from any  cause  whatsoever,  of the
liability of Borrower.

         4. Continuing Liability.  Liability of the Guarantor hereunder shall be
a  continuing  one and shall  extend to any and all notes or other  evidences of
indebtedness that may be given in extension or renewal of the Note.

         5.  Representations  and Warrants.  The Guarantor hereby represents and
warrants that:

                  (a) Barringer  Instruments,  Inc., is a New Jersey corporation
in good  standing  and  qualified  to do  business  in New  Jersey and all other
jurisdictions in which it conducts business or owns assets.

                  (b) The  execution of this  guaranty by the Guarantor has been
duly  authorized  by proper  action of its board of  directors  and the  persons
executing this guaranty on behalf of the Guarantor  have been  authorized to act
on the Guarantor's behalf and to bind the Guarantor to the terms hereof.

                  (c) The  Guarantor  has the legal  capacity to enter into this
Guaranty and to perform its obligations hereunder.

                  (d) This  Guaranty  constitutes  the legal,  valid and binding
obligation  of the  Guarantor  and  is  enforceable  against  the  Guarantor  in
accordance  with  its  terms,  subject  to  creditors,  rights  in  general  and
bankruptcy and insolvency laws.

                  (e)  There  is  no  action,  suit,   proceeding,   inquiry  or
investigation,  at law or in equity, or before or by any court,  public board or
body,  pending or within  the  knowledge  of  Guarantor  threatened,  wherein an
unfavorable  decision,  ruling or finding would (i) to the extent not covered by
insurance,  result in any material,  adverse  change in the business,  financial
condition,  properties or operations of  Guarantor;  (ii)  materially  adversely
affect the transactions  contemplated in the Loan Documents or this Guaranty; or
(iii) adversely affect the validity or  enforceability  of the Loan Documents or
this Guaranty. All authorizations, consents and approvals of governmental bodies
or agencies  required in  connection  with the  execution  and  delivery of this
Guaranty or in connection with the  performance of the  Guarantor's  obligations
hereunder have been obtained and will be obtained whenever required hereunder by
law.

                  (f) Neither the execution and delivery of this  Guaranty,  the
consummation of the transactions  contemplated hereunder, nor the fulfillment of
or  compliance  with the terms and  conditions  contained  herein is  prevented,
limited by,  conflicts  with or results in a breach of the terms,  conditions or
provisions  of any law,  rule,  regulation,  order of any court or  governmental
agency,  or any evidence of  indebtedness,  agreement or  instrument of whatever
nature to which Guarantor (or any company,  corporation or other business entity
controlled  by  Guarantor  or  affiliated  with it) is now a party,  or to which
Guarantor or any such entity is bound, or constitutes a default under any of the
foregoing.  Such execution,  delivery,  consummation  and  performance  will not
result in the creation or imposition of any lien, charge or encumbrance upon any
of the property or assets of the Guarantor or any such entity.

                  (g) The granting of the credit  facility to the Borrower  will
result in material benefits to the Guarantor.

                  (h) Neither this Guaranty nor any other document,  certificate
or  statement  furnished  to the  Lender  by or on  behalf  of the  Borrower  or
Guarantor  contains any untrue  statement of a material fact or omits to state a
material fact  necessary in order to make the  statements  contained  herein and
therein not misleading or incomplete.

                  (i) The  representations and warranties of the Borrower to the
Lender were wholly true and accurate  when made and are wholly true and accurate
as of the execution hereof.

         6. Covenants of Guarantor.  The Guarantor  hereby  covenants and agrees
that:

                  (a) Guarantor guarantees,  unconditionally,  that the Loan and
other  obligations  of  Borrower  under  the  Loan  Documents  will be paid  and
performed in accordance with their terms, promptly upon demand of the Lender.

                  (b)  Guarantor  shall cause the Borrower to fully  perform and
observe all of the covenants,  agreements and  obligations of the Borrower under
each of the Loan Documents.

                  (c) If Guarantor  shall  receive any monies,  by reason of the
exercise of any rights of subrogation or  contribution,  prior to the payment in
full and  performance  of the  Obligations  contained  herein and under the Loan
Documents, such amounts shall be paid by such Guarantor directly to the Lender.

                  (d) If Borrower is now or shall  hereafter  become indebted to
Guarantor,  the amount of each sum and such  indebtedness  shall at all times be
subordinate,  as to lien,  time of  payment  and in all  other  respects  to the
amounts owing to the Lender under the Loan Documents, and Guarantor shall not be
entitled  to  enforce  or receive  payment  thereof  until all sums owing to the
Lender  have  been  paid.  Nothing  herein  contained  is  intended  or shall be
construed to give  Guarantor any right of  subrogation  in or under the Note, or
any right to participate in any way therein,  notwithstanding  any payments made
by Guarantor  under the Guaranty.  The  obligations  of the Guarantor  hereunder
shall  continue  in  full  force  and  effect  until  the  obligations  and  all
obligations of the Borrower shall have been fully paid and performed.

                  (e) At all times during the term of this  Guaranty,  Guarantor
shall operate and maintain its assets and properties in a reasonable  manner and
keep their property in good repair, and shall not despoil their assets.

                  (f) Guarantor shall promptly notify Lender of any material and
adverse  changes in Guarantor's  financial  condition  during the period of time
that the Loan remains outstanding.

                  (g) Guarantor shall promptly notify Lender of any litigations,
actions,  proceedings,  claims or investigations,  pending or threatened against
Guarantor,  that may materially and adversely affect the financial  condition of
Guarantor.

         7. Events of Default. Any one or more of the following shall constitute
an "Event of Default" hereunder:

                  (a) Failure of the Guarantor to perform its obligations herein
or to under the  terms of the  Revolving  Credit  Loan  Agreement,  of even date
herewith.

         8. Remedies  Upon  Default.  If any one or more Events of Default shall
occur under this  Guaranty,  then in each case, the Lender shall have all rights
and remedies, including but not limited to the right to:

                  (a) cause all amounts  payable  hereunder  and pursuant to the
Loan  Documents  to be  immediately  due and payable,  whereupon  the same shall
become immediately due and payable;

                  (b) take  any  other  action  available,  either  in law or in
equity to enforce performance or collect any amounts due or thereafter to become
due under this  Guaranty,  or any of the Loan  Documents and exercise all rights
and remedies of the Lender thereunder;

                  (c)  enforce  the  observance  of  any  of  the  covenants  or
obligations  of Guarantor  under this Guaranty or any of the  obligations of the
Borrower under the Loan Documents.

         9. Costs of  Collection.  This Guaranty  also  includes all  reasonable
attorneys'  fees and  expenses  and  disbursements  incurred  by  Lender  in the
collection,  enforcement of payment or performance by Borrower of any obligation
of  Borrower  to  Lender,  and in the  collection,  enforcement  of  payment  or
performance by Guarantor  hereunder,  including all reasonable expenses incurred
in enforcing all rights under this Guaranty.

         10. No Waiver.  Any waiver by Lender on  default of  Borrower,  and any
failure on the part of Lender to enforce its rights against  Borrower,  shall be
limited to that particular instance, shall not operate or be deemed to waive any
future default or defaults,  and shall not affect the absolute and unconditional
liability of the Guarantor. Any extensions of time granted by Lender to Borrower
shall not release the Guarantor from its obligations hereunder.

         11. Indemnification.  The Guarantor shall indemnify and save the Lender
harmless from any loss, claim,  demand or charge  whatsoever  incurred by Lender
arising out of or resulting  from default of the Borrower  under any of the Loan
Documents.

         12.  Continuing  Effect.  This Guaranty  shall continue in full effect,
notwithstanding any insolvency or bankruptcy of the Borrower.

         13. Consent and Waiver By Guarantor.  The Guarantor  hereby consents to
all the terms and provisions of each of the Loan  Documents,  as the same may be
from time to time amended or modified. The Guarantor hereby irrevocably waives:

                  (a) Notice of  acceptance  of this  Guaranty  and notice  that
credit has been extended by the Lender in reliance thereon;

                  (b) Notice of any  amendment or any change in the terms of any
of the Loan  Documents,  or any  other  present  or  future  agreement  relating
directly or indirectly thereto;

                  (c) Notice of any default or Event of Default under any of the
Loan Documents,  or any other present or future agreement  relating  directly or
indirectly thereto;

                  (d) Demand for  performance,  observance of and enforcement of
any provisions,  or any pursuit or exhaustion of any rights or remedies  against
the Borrower, or any other Guarantor or obligor who becomes liable in any manner
for any of the  obligations,  and any requirements of diligence or promptness on
the part of the Lender or any assignee of Lender in connection therewith;

                  (e) Diligence,  presentment,  protest,  notice of dishonor and
notice of  default  in the  payment  of any  amount at any time  payable  by the
Borrower under or in connection with any of the Loan Documents;

                  (f)  The  benefit  of any  statute  of  limitations  affecting
Guarantor's  liability hereunder or the enforcement thereof, and agrees that any
payment  of any  indebtedness  or other  act that  shall  toll  any  statute  of
limitations  applicable  thereto shall similarly operate to toll such statute of
limitations applicable to Guarantor's liability hereunder; or

                  (g)  The  benefit  of laws  exempting  property  from  levy or
execution.

         14.  Binding  Effect.  The  Guarantor  hereto agrees that this Guaranty
shall bind and inure to the benefit of its successors and assigns.

         15.  Governing Law. This Guaranty shall be governed by the  substantive
law of New Jersey.  The Guarantor  hereby  consents to the  jurisdiction  of the
courts of the State of New Jersey or the federal  courts  located in the federal
district of New Jersey.

         16.  Assignment  By Lender.  Lender may,  without  notice,  assign this
Guaranty in whole or in part to a party to whom the Loan is assigned.

         17.  Setoff.  In  addition  to all  liens  upon,  and  rights of setoff
against,  the monies,  securities or other property of Guarantor given to Lender
by law, Lender shall have a lien upon and a right of setoff against, all monies,
securities and other property of Guarantor now or hereafter in the possession of
Lender. Every such lien and right of setoff may be exercised without demand upon
or notice to Guarantor.  No lien or right of setoff shall be deemed to have been
waived  by any act or  conduct  on the  part of  Lender,  or by any  neglect  to
exercise  such  right of setoff or to enforce  such lien,  or by any delay in so
doing.  Every  right of setoff and lien shall  continue in full force and effect
until such right of setoff or lien is assigned  to Lender as  security  for this
Guaranty and the Loan, without reducing or affecting in any manner the liability
of  Guarantor  under the other  provisions  of this  Guaranty.  Any notes now or
hereafter evidencing  indebtedness of Borrower to Guarantor shall be marked with
a legend that the same are subject to this Agreement and, if Lender so requests,
shall be delivered to Lender.

         18. Notices. All notices,  requests and other communication pursuant to
this  Guaranty  shall be in  writing,  addressed  to the  Lender at its place of
business  first  indicated  above  or to  the  Guarantor  at its  address  first
indicated  above or at such other address as either party may give notice to the
other as herein provided.  Any notice shall be by certified mail, return receipt
requested, and shall be effective upon mailing.
If hand delivered, the notice shall be effective upon receipt.

         19. Obligations  Absolute.  The obligations of the Guarantor  hereunder
shall be absolute.

         20. Severability.  If any term, provision, covenant or condition hereof
should  be held by a court of  competent  jurisdiction  to be  invalid,  void or
unenforceable,  all other  provisions,  covenants and conditions hereof not held
invalid, void or unenforceable shall continue in full force and effect and shall
in no way be affected, impaired or invalidated thereby.

         21. Payment  Without  Deduction.  The Guarantor shall make all payments
required hereunder, free of any deductions, and without abatements, deduction or
setoff.

         22.  Waiver of Jury  Trial.  The  Guarantor  waives any right to a jury
trial in any  litigation  in any court with  respect to, in  connection  with or
arising out of the Loan or any instrument or document  delivered pursuant to the
Loan, or with respect to the validity, protection, interpretation, collection or
enforcement of the Loan.

         IN WITNESS WHEREOF,  the Guarantor has executed this Guaranty as of the
date first written above.

ATTEST:                                     GUARANTOR:
                                            Barringer Instruments, Inc.
                                              a New Jersey corporation


\S\ RICHARD S. ROSENFELD                    By: \S\ STANLEY BINDER
- ------------------------                    ----------------------------     
Richard S. Rosenfeld                        Name: Stanley Binder
Vice President Finance                      Title:  Chairman & CEO



                        REVOLVING CREDIT LOAN AGREEMENT
                           Dated as of March 13, 1998
                                      Among
                       BARRINGER TECHNOLOGIES INCORPORATED
                           BARRINGER INSTRUMENTS. INC.
                           BARRINGER RESEARCH LIMITED
                                       and

                                FLEET BANK, N.A.
<PAGE>


         THIS REVOLVING CREDIT  AGREEMENT  dated  as  of March  [13],  1998 (the
"Agreement"),  among BARRINGER TECHNOLOGIES INCORPORATED, a Delaware corporation
("BORROWER"  or "BTI"),  BARRINGER  INSTRUMENTS,  INC.,  a Delaware  corporation
("BII"),  and BARRINGER  RESEARCH LIMITED,  a Canadian  corporation  ("BRL") and
FLEET BANK, N.A. (together with any successors and assigns, the "Lender").

                                   BACKGROUND

         WHEREAS,  Borrower has requested  Lender to extend a credit facility to
the Borrower to enable  Borrower to borrow up to FIVE MILLION AND 00/100 DOLLARS
($5,000,000.00) (the "Revolving Credit") on a revolving basis; and

         WHEREAS, all the documents described hereunder that evidence and secure
the Revolving Credit, including, but not limited to, all notes, guarantees,  and
other  collateral  documents,  are referred to herein  collectively as the "Loan
Documents"; and

         WHEREAS,  Lender has agreed to extend such credit to the Borrower  upon
the terms and conditions set forth in this Agreement.

         In   consideration   of  the  premises  and  other  good  and  valuable
consideration,  the receipt and sufficiency of which is hereby acknowledged, and
intending to be legally bound hereby, the parties hereto agree as follows:

                                    ARTICLE I
                        DEFINITIONS AND ACCOUNTING TERMS

         SECTION 1.1 Definitions. As used in this Agreement, the following terms
shall have the following  meanings  (such  meanings to be equally  applicable to
both the singular and plural forms of the terms defined):

         "Account" is as defined under the UCC.

         "Advance" is as defined in Section 2.1 hereof.

         "Advance   Request"  means  a  request  for  an  Advance  submitted  in
accordance with subsection 2.1.1 hereof.

         "Affiliate" means any other Person who controls, is controlled by or is
under common control with another Person.

         "Agreement"  means this  agreement,  as  amended,  restated,  extended,
supplemented or modified from time to time.

         "Applicable  Interest  Rate" shall mean the interest rate, as it may be
changed  from  time to time,  in  accordance  with the terms  hereof,  due on an
Advance during an Interest Period. The Applicable  Interest Rate shall equal, at
Borrower's  option,  Base  Interest  Rate (the "Base Rate  Option") or the LIBOR
Interest Rate (the "LIBOR Option").

         "Base  Interest  Period" shall mean a period of time from and including
the date of any Advance to and  including  the last day that any  Advance  bears
interest at the Base Interest Rate.

         "Base  Interest  Rate" shall be a variable  interest  rate equal to the
Prime Rate, less 0.75%.

         "BTI"  shall  mean  Barringer  Technologies  Incorporated,  a  Delaware
corporation, with offices at 219 South Street, Murray Hill, New Jersey 07974.

         "BII" shall mean Barringer Instruments, Inc., a New Jersey corporation,
with offices at 219 South Street, Murray Hill, New Jersey 07974.

         "BRL" shall mean Barringer  Research  Limited,  a Canadian  corporation
with offices at 1730 Aimes Boulevard, Mississauga, Ontario, Canada L4W IVI.

         "Books and Records" means all books, records, tapes, information, data,
stored material,  computer media, passwords,  access codes arising or related to
Borrower's business, now existing or hereafter acquired.

         "Borrower" means BTI.

         "Business Day" means a day other than a Saturday,  Sunday, or other day
on which banks are  authorized or required to close under the laws of New Jersey
or under Federal law.

         "CERCLA" means the Comprehensive Environmental Response,  Compensation,
and Liability Act, as amended from time to time.

         "Chattel Paper" is as defined in the UCC.

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

         "Collateral"  means all property that may secure any of the Liabilities
(including,  without  limitation,  all amounts payable or deliverable  under the
Loan Documents,  and all proceeds of the foregoing in whatever form received, in
each case whether now owned or hereafter acquired.)

         "Company" means BTI, BII and BRL.

         "Consolidated"  refers to the consolidation of the accounts of Borrower
in accordance with GAAP, including principles of consolidation.

         "Consolidating"   refers  to  the   separate   entity   reporting   and
consolidation  of the accounts of Borrower and its  subsidiaries  in  accordance
with GAAP, to the best efforts of Borrower.

         "Contingent  Liabilities" means all liabilities that must be classified
as contingent liabilities of Borrower under GAAP.

         "Controlled  Group"  means  all  trades or  businesses  which are under
common control (as defined in ss.4001(b)(1) of ERISA) with Borrower.

         "Credit  Obligation"  means any obligation in excess of $100,000.00 for
the payment of borrowed money, the installment  purchase price of property or on
account of a lease of property that is  capitalized  under GAAP,  and shall also
mean  any  obligation  under  a  guaranty  or  suretyship   agreement   covering
obligations of such type.

         "Current  Assets"  means all assets of the  applicable  person that are
classified as current assets under GAAP.

         "Current  Liabilities"  means  all  liabilities  of  Borrower  that are
classified as current liabilities under GAAP.

         "Current   Ratio"  means  the  ratio  of  Current   Assets  to  Current
Liabilities.

         "Default" means the occurrence or  non-occurrence of an event that, but
for the giving of notice,  the passage of time or both,  constitutes an Event of
Default.

         "Default Rate" means the Prime Rate plus 3%.

         "Defined  Benefit Pension Plan" means an employee  benefit pension plan
(other than a  Multiemployer  Plan)  covered by Title IV of ERISA as provided in
Section 4021 of ERISA.

         "Defined Contribution Plan" means an individual account plan as defined
in ss.3(34) of ERISA.

         "Document" is as defined in the UCC as in effect on the date hereof.

         "Employee Benefit Plan" has the meaning given to such term in ss.3(3)
of ERISA.

         "Environmental  Law" means any federal,  state or local  statute,  law,
ordinance, regulation, rule, standard, permit or requirement,  including but not
limited to those statutes,  ordinances,  laws,  regulations,  rules,  standards,
permits  and  requirements  promulgated  under the laws of the United  States of
America  or  any  other  nation,  concerning  or  relating  to  the  generation,
treatment, storage,  transportation,  disposal and release into the environment,
cleanup and remediation of any "hazardous substance", as that term is defined in
CERCLA.

         "ERISA" means the Employee  Retirement  Income Security Act of 1974 and
the regulations issued thereunder, as amended from time to time.

         "Equipment" is as defined in the UCC.

         "Event of Default" is as defined in Section 7.1.

         "Funded Debt" means the sum of (A) the outstanding principal balance of
the  Advances,   plus  (B)  the  outstanding   principal  amount  of  any  other
indebtedness  of Borrower  (including  without  limitation,  current  maturities
thereof, but excluding trade payables, accrued expenses, current installments of
obligations not to compete,  and taxes payable),  plus (C) any obligation of the
Borrower for the payment of borrowed money or the installment  purchase price of
property or on account of a lease of property  capitalized under GAAP, and shall
also mean any  obligation of Borrower  under a guaranty or suretyship  agreement
covering obligations of such type.

         "GAAP" means generally accepted accounting principles,  as in effect in
the  United  States as of the date of the  Agreement,  applied  in a  consistent
manner.

         "General Intangible" is as defined in the UCC.

         "Guarantor"  means BII, and any other entity that may become a party to
this Agreement.

         "Instrument" is as defined in the UCC.

         "Interest Period" shall mean a LIBOR Interest Period or a Base Interest
Period.

         "Inventory" is as defined in the UCC.

         "Landlord's  Waiver"  means  an  instrument  (in form  satisfactory  to
Lender) by which an owner of real  property in which any Borrower is a tenant or
occupant  waives its right to  distrain on any of the  Collateral,  and by which
such  owner  grants to Lender  the right  (but not the  obligation)  to cure any
default by Borrower under the applicable lease.

         "Lender" shall mean Fleet Bank, N.A., its successors or assigns.

         "Leverage Ratio" means Total Liabilities divided by Tangible Net Worth.

         "Liabilities" shall mean all principal, interest and fees due under the
Loan and all other  liabilities  of  Borrower  to Lender,  whether  absolute  or
contingent,  matured or unmatured,  direct or indirect, sole, joint, several, or
joint and several, similar or dissimilar,  arising under the Loan Documents, due
or to become due or  heretofore or hereafter  contracted  or acquired  under the
Loan Documents.

         "LIBOR  Interest  Period" shall mean a period of time  beginning on and
including  the date of any Advance and ending on and  including  the last day of
the 30th,  60th or 90th day period (as  selected by the  Borrower in its Advance
Request  with  respect  thereto)  following  the  date  of  any  Advance,   and,
thereafter,  a 30,  60 or  90  day  period,  as  selected  by  the  Borrower  by
irrevocable  notice to Lender given not less than three (3) Business  Days prior
to the date of any new  Advance  or the last  day of the then  current  Interest
Period with respect thereto, through and including the Maturity Date.

         "LIBOR  Interest Rate" shall mean an interest rate based upon the LIBOR
Rate, plus 2.0%.

         "LIBOR  Rate" shall mean the London  Interbank  Offered Rate for thirty
(30), sixty (60) or ninety (90) day U.S. Dollar deposits determined by Lender as
of the date of each  Advance  or the date  which is the  beginning  of the LIBOR
Interest Period by reference to the offered rates that appear in The Wall Street
Journal  (Eastern  Edition) under the heading  "London  Interbank  Offered Rates
(LIBOR)" of the "Money  Rates" column on the Advance date (or if The Wall Street
Journal is not published on such date with such information,  the next preceding
date on which The Wall Street  Journal is published with such  information).  If
The Wall Street Journal  ceases  publication or ceases to publish the applicable
LIBOR Rate, Lender shall select a comparable publication or alternative means to
determine the  applicable  LIBOR Rate (such as the Telerate or Reuters  systems)
and provide notice thereof to Borrower.  The  establishment of the LIBOR Rate by
Lender  as of each  Advance  date and  Lender's  calculation  of the  Applicable
Interest Rate for an Interest Period shall (in the absence of manifest error) be
final and binding. The LIBOR Rate may not be the lowest LIBOR Rate available for
U.S. Dollar deposits in the London  interbank  Eurodollar  market as of the date
for which the LIBOR Rate is determined by Lender.

         "Loan" means the Revolving Credit.

         "Loan Documents" means this Agreement, the Note and all other documents
executed and delivered in connection with the Loan.

         "Multiemployer Plan" has the meaning given to such term in ss.3 (37) of
ERISA.

         "Net  Income"  means total  revenues  from  operations,  less  expenses
(including  interest  expenses and taxes),  determined in accordance  with GAAP,
except charges  resulting  solely from the  accounting for costs  resulting from
certain future acquisitions.

         "Note" means the Revolving Credit Note.

         "PBGC" means the Pension Benefit Guaranty Corporation.

         "Permitted  Encumbrances" means (A) liens for taxes not yet delinquent;
(B)  statutory  inchoate  liens  in  connection  with  workmen's   compensation,
unemployment  insurance,  or other social security obligations;  (C) mechanic's,
workman's, materialman's,  landlord's, carrier's, or other similar liens arising
in the ordinary course of business with respect to obligations that are not due;
and (D) liens in favor of Lender.

         "Person"  mean  an  individual,   corporation,   partnership,   limited
liability company, trust or any other entity.

         "Plan"  means an Employee  Benefit  Plan or other plan  maintained  for
employees  of  Borrower  or any member of its  Controlled  Group and  covered by
ERISA.

         "Prime Rate" means the per annum index rate  established  and announced
from  time to time  by  Lender  as its  "Prime  Rate,"  and  used by  Lender  in
establishing interest rates on some of its commercial Loan, and such term is not
intended  to imply that such Prime Rate is, nor is such Prime Rate  necessarily,
the lowest rate of interest charged by Lender on any type of commercial Loan.

         "Prohibited  Transaction"  has the meaning given to such term in ss.406
of ERISA or regulations issued thereunder.

         "Purchaser" means a buyer of goods from Borrower or a customer for whom
services have been rendered or materials furnished by Borrower.

         "Reorganization" has the meaning given such term in ss.4241 of ERISA.

         "Reportable Event" has the meaning given to such term in ss.4043 (b) of
ERISA or regulations issued thereunder.

         "Revolving Credit" means the $5,000,000 revolving credit facility given
by Lender to Borrower, as more particularly described in Section 2.1.

         "Revolving  Credit Limit" means  $5,000,000,  less the aggregate of the
outstanding  principal  balance of all Advances made under the Revolving  Credit
Note.

         "Revolving  Credit  Expiration  Date" means June 30, 1999,  as extended
from time to time,  except that Lender may, in Lender's sole discretion,  extend
the Revolving Credit  Expiration Date for an additional year from each Revolving
Credit Expiration Date.

         "Revolving  Credit Note" means  Borrower's  note in the form of Exhibit
2.3 evidencing the Revolving Credit.

         "Subsidiary"  means  any  person of which  more than 50% of the  voting
capital stock or other ownership interests is owned, directly or indirectly,  by
another Person.

         "Tangible Net Worth" means,  at any time,  the sum of (A) the par value
(or value  stated  on the  books of such  person)  of the  capital  stock of all
classes  of stock,  plus (or  minus in the case of a  deficit)  (B) the  paid-in
capital  in  excess  of par  plus  retained  earnings,  including  undistributed
corporation  earnings  of  all of  Borrower,  and  shall  not  include  minority
interests or intangible assets, as determined in accordance with GAAP.

         "Total  Liabilities"  means  all  liabilities  of a person  under  GAAP
definitions and shall not include minority interests, as defined under GAAP.

         "UCC"  shall  mean the New Jersey  Uniform  Commercial  Code,  N.J.S.A.
12A:1-101 et seq., as from time to time amended.

         "Withdrawal  Liability"  has the  meaning  given  such  term in 4201 of
ERISA.

         SECTION 1.2 Accounting  Terms.  All accounting  terms not  specifically
defined herein shall be construed in accordance with GAAP and all financial data
submitted  pursuant  to this  Agreement  shall,  if  applicable,  be prepared in
accordance with GAAP.

                                   ARTICLE II
                                    THE LOAN

         SECTION 2.1 The Revolving  Credit.  Subject to the terms and conditions
hereinafter provided, Lender shall advance to Borrower, from time to time during
the period from the date hereof to and including the Revolving Credit Expiration
Date, such sums as Borrower may request (each such advance,  an "Advance") in an
outstanding aggregate principal amount not to exceed the Revolving Credit Limit.
Borrower agrees that Advances shall only be used for working  capital  purposes,
for capital  expenditures  in the  ordinary  course of business  and for general
corporate  purposes.  Advances  may also be used  for the  issuance  of  standby
letters of credit and, provided the Borrower has received Lender's prior written
approval, for corporate  acquisitions.  The stated amount of a standby letter of
credit while  outstanding  shall reduce the Revolving  Credit Limit.  Any use of
Advances to support  acquisitions  or to repurchase  Borrower's  stock  requires
Lender's  prior  written  consent.  If the  aggregate  amount  of  the  Advances
outstanding at any time exceeds the Revolving Credit Limit,  then Borrower shall
repay  immediately  the amount of such excess.  Borrower  may borrow,  repay and
reborrow  amounts  available under the Revolving  Credit until but not including
the Revolving  Credit  Expiration  Date,  subject to the terms and conditions of
this  Agreement  and provided  that the  outstanding  Advances  shall at no time
exceed the Revolving Credit Limit.

         SECTION 2.1.1 Making the Advances.  (A) Borrower may request an Advance
(each an "Advance  Request") by telephone or in writing  (including by facsimile
copy) by 11:00 a.m. of the Business Day on which the requested  Advance is to be
made.  All Advance  Requests shall be signed by an officer of Borrower and shall
state the date and amount of the proposed Advance,  the applicable Interest Rate
and Interest  Period,  if  applicable,  and  directions  for making the proposed
Advance.  Any  telephonic  Advance  Requests  shall be  confirmed by Borrower in
writing on the same day by facsimile  copy,  and the original  executed  Advance
Request shall subsequently be submitted to Lender.

         (B) Each Advance Request shall constitute a representation that, at the
time thereof and giving effect to the Advance requested thereby, (1) no Event of
Default  or  Default  has  occurred  and  is  continuing   hereunder;   (2)  the
representations and warranties contained herein are expressly reaffirmed and are
correct  as of the date of such  Advance  Request  and will be correct as of the
date on  which  the  Advance  is to be made  (except  to the  extent  that  such
representation  or warranty  applies to an earlier date, in which event it shall
be  reaffirmed  and  correct as of such  earlier  date);  and (3) the sum of the
outstanding  Advances plus the  requested  Advance will not exceed the Revolving
Credit Limit.  Lender shall make any such Advance  available to Borrower in such
manner as Borrower may reasonably request in the Advance Request. Borrower shall
hold Lender  harmless from any liability  for any loss  resulting  from Lender's
reliance on any writing or facsimile copy purportedly made by any officer of any
Borrower.  Lender's  books and records  shall be deemed  conclusive  evidence of
whether or not an Advance  Request was made and the terms thereof.  Each Advance
Request shall be  irrevocable  once  submitted to Lender,  whether  submitted by
telephone or by facsimile copy.

         SECTION 2.1.2  Interest Rates; Interest Payments on the Advances.

         (A) Interest Rate. Each Advance shall bear interest at the then current
Applicable  Interest Rate until a new Applicable Interest Rate is determined for
each Interest Period in accordance with the provisions  hereof. If Lender at any
time determines, in its reasonable discretion, that Lender has miscalculated the
amount of a payment due to Lender (whether  because of a  miscalculation  of the
Applicable Interest Rate or otherwise),  Lender shall give notice to Borrower of
the corrected amount of such payment and

                  (i)    if the corrected  amount of such payment  represents an
                         increase  over  the  payment  actually  made,  Borrower
                         shall, within ten (10) calendar days thereafter, pay to
                         Lender any additional sums that Lender  determines that
                         Borrower should have made but for such  miscalculation,
                         or;

                  (ii)   if the  corrected  amount of such payment  represents a
                         decrease  below the payment  actually made and Borrower
                         is not  otherwise in default under any of the terms and
                         provisions of the Loan Documents,  Lender shall, within
                         (10) calendar days thereafter, pay to Borrower the sums
                         that Borrower  otherwise  would not have been obligated
                         to pay to Lender but for such miscalculation.

         The Borrower shall select an Applicable Interest Rate for each Advance,
and absent an  affirmative  selection by the  Borrower,  each  Advance  shall be
presumed to be at the Base Interest  Rate. If any Advance bears  interest at the
Base Interest Rate and at the end of any LIBOR  Interest  Period for an Advance,
the  Borrower  may  select  the LIBOR  Option,  and if the  LIBOR  Option is not
selected at the  expiration of any LIBOR Interest  Period,  the interest rate on
such Advance  shall  convert to the Base Rate Option  until the  Borrower  again
selects the LIBOR Option.

         (B) Interest  Payments on Advances.  Borrower shall pay interest on the
unpaid  principal  amounts of all Advances made under the Revolving  Credit from
the  respective  dates on which such Advances are disbursed  until such Advances
have been repaid in full. Borrower shall pay interest on the Advances in arrears
on the last day of each month,  commencing on the end of the month following the
date of such Advance and continuing until the Revolving Credit  Expiration Date,
on which date Borrower shall pay the outstanding principal of all Advances, plus
all  accrued  and unpaid  interest  thereon  and any other fees and costs due in
connection with the Revolving Credit. Notwithstanding the foregoing, interest on
an Advance  bearing  interest at the LIBOR interest Rate shall be payable at the
end of the applicable LIBOR Interest Period.

         SECTION  2.1.3  Repayment  of the  Revolving  Credit;  Reduction of the
Revolving  Credit  Limit.  (A) Lender shall have no  obligation  to fund Advance
Requests under the Revolving  Credit  received after 11:00 a.m. on the Revolving
Credit  Expiration  Date.  Borrower  shall pay the  outstanding  balance  of all
Advances,  plus all accrued and unpaid  interest  thereon and any other fees and
costs due in connection  with the  Revolving  Credit,  on the  Revolving  Credit
Expiration Date.

         (B) Reduction or  Cancellation  of Revolving  Credit Limit. At any time
and from  time to time,  Borrower  may,  upon at least  five (5)  Business  Days
written notice to Lender,  reduce the unutilized portion of the Revolving Credit
Limit by  $100,000.00 or integral  multiples  thereof or terminate the Revolving
Credit.  Each such notice  shall  specify the date upon which such  reduction or
termination  is  to  become  effective,  and  shall  be  irrevocable.  Any  such
termination or reduction of the Revolving Credit Limit shall be permanent.

         SECTION 2.2  Prepayments.  (A) Except as provided  in  Subsection  (B),
Borrower may prepay any or ail unpaid  principal of the Loan without  penalty or
premium  provided  that if such  prepayment  is less than the  entire  principal
amount  of  the  Advances,  then  such  prepayment  shall  be in the  amount  of
$10,000.00 or multiples thereof.

         (B) LIBOR Interest Rate Prepayment Penalties. If the Borrower repays an
Advance that is bearing interest at the LIBOR Interest Rate on a date other than
the last day of the LIBOR Interest Period for that particular Advance,  Borrower
shall pay a prepayment  premium in lieu of the payment of interest  equal to the
amount of the  interest  that  would  have been  payable at the end of the LIBOR
Interest Period on the prepayment amount when discounted to a present value at a
rate per annum equal to the yield to maturity of the  "Applicable  Treasury Bond
Obligation(s)".  The "Applicable  Treasury Bond Obligation(s)" shall mean a debt
obligation of the United States  Treasury having a maturity date nearest in time
to the expiration of the LIBOR Interest  Period of the principal  being prepaid.
The  maturity  date and  yield to  maturity  of such  Applicable  Treasury  Bond
Obligation(s) shall be determined by Lender in its reasonable  discretion on the
basis of quotations  published in The Wall Street Journal (or comparable  source
on the date of prepayment).

         SECTION 2.3 Note.  (A) The  obligations  of Borrower to repay  Advances
under the Revolving Credit are evidenced by a promissory note, dated the date of
this Agreement,  payable to the order of Lender,  in the principal amount of the
Revolving Credit and otherwise substantially in the form of Exhibit 2.3 attached
hereto.

         SECTION 2.4 Fees. Borrower shall pay an annual commitment fee to Lender
on the Revolving  Credit,  which fee shall equal one-half of one percent (0.50%)
of the Revolving  Credit measured on a per annum basis and payable as of the end
of each of Borrower's fiscal quarters.

         SECTION 2.5 Place and Manner of Payments.  Borrower  agrees to make all
payments on account of principal, interest, the fees or any other sums due under
any of the Loan Documents  without setoff or  counterclaim to Lender at Lender's
office located at its address  specified in Section 8.2 below, at or before 3:00
p.m.  New Jersey time on the date due, in lawful  money of the United  States of
America.  All payments  received by Lender from Borrower shall be applied in the
following  order:  (A) to the payment of fees and other costs and expenses  then
due and owing from Borrower,  (B) to the payment of accrued and unpaid  interest
then  due,  (C) to the  payment  of any  other  amounts  outstanding  under  the
Revolving Credit.

         SECTION  2.6  Computation  of  Interest.  The  interest  on the amounts
outstanding  under the Loan shall be computed on the basis of a year of 365 days
for the actual number of days elapsed.

         SECTION 2.7 Late Charges;  Default Rate.  (A) If Borrower fails to make
any payment  required  hereunder or under any of the other Loan Documents within
ten (10) days of the date when due,  Borrower  shall pay to Lender a late charge
equal to three percent (3%) of the amount of such late payment as a late charge,
not to exceed $2,500.00. Late charges assessed by Lender are immediately due and
payable.  Payments  are deemed made on the Business Day that payment is received
by Lender, except that payments received after 3:00 p.m. New Jersey time will be
deemed received on the next Business Day.

         (B) After an Event of Default,  the interest rate then in effect on the
Loan immediately  shall be increased to the Default Rate, and each time that the
Prime Rate  changes,  the  Default  Rate  applicable  to the Loan  shall  change
simultaneously therewith, without notice to Borrower.

         SECTION  2.8.  Clean  Up  Period.   Borrower  shall,  for  thirty  (30)
consecutive between the date of this Agreement and December 31, 1998, and during
each  subsequent  twelve (12) month  period,  reduce the  outstanding  principal
balance of all Advances to zero.

                                   ARTICLE III
                                   COLLATERAL

         SECTION 3.1  Collateral.  The Revolving  Credit is  unsecured.  However
Borrower,  BII and BRL each covenants and agrees that neither  Borrower,  BII or
BRL will  grant,  pledge or assign to any Person a security  interest  in any of
their respective  assets,  whether now owned or hereafter  acquired,  including,
without  limitation,  (A) Accounts,  Chattel  Paper,  Equipment  (whether or not
constituting fixtures), Documents,  Instruments, General Intangibles (including,
but not limited to, any and all interests in trademarks, service marks, patents,
licenses,  permits, and copyrights),  (B) Inventory of Borrower, if any, held by
any Borrower for sale or lease or to be  furnished  under  contracts of service,
(C) Books and  Records,  or (D) all  proceeds  and  products  of the  foregoing,
including  casualty  insurance  thereon,  now  owned or  hereafter  acquired  by
Borrower, BII or BRL (herein defined as "Collateral").

         SECTION  3.2  Records  and  Reports.  Borrower,  BII and BRL shall keep
accurate and complete records of their  respective  Accounts (and the collection
thereof),  General  Intangibles,  Chattel  Paper,  Instruments,   Documents  and
Inventory and furnish Lender such information about Borrower's Accounts, General
Intangibles, Chattel Paper, Instruments,  Documents, and Inventory as Lender may
reasonably  request.  Lender shall have the right, upon reasonable notice during
regular  business hours, to conduct periodic  examinations and  verifications of
their Books and Records,  which  examination  may include,  without  limitation,
verifications of Accounts by contacting Purchasers. Borrower, BII and BRL agree,
upon  reasonable  notice during regular  business hours, to make their Books and
Records  available  to Lender at  Borrowers'  principal  place of  business  for
purposes  of such  examination.  Provided  that there does not exist an Event of
Default,  Lender  agrees  to give at  least  one  week  written  notice  of such
examination  and to conduct  such  examination  during  normal  business  hours.
Borrower, BII and BRL shall reimburse Lender for the costs and expenses (whether
internal or external) of any such examination,  but only if Borrower, BII or BRL
is in default at the time of examination.

                                   ARTICLE IV
                              CONDITIONS OF LENDING

         SECTION  4.1 General  Conditions  Precedent  to  Lender's  Obligations.
Lender's  obligations  hereunder are subject to the  conditions  precedent  that
Lender  shall  have  received  all of  the  following,  in  form  and  substance
satisfactory to Lender:

         (A) a copy,  certified  in writing  by the  Secretary  or an  Assistant
Secretary of BTI, BII and BRL, of (1)  resolutions  of the Board of Directors of
such entity  evidencing  approval of the Loan  Documents  by such entity and the
matters  contemplated  thereby,  (2) each document  evidencing  other  necessary
corporate  action and governmental  approvals,  if any, with respect to the Loan
Documents, and (3) such entity's charter documents and by-laws;

         (B) a favorable opinion of independent  counsel(s) for BTI, BII and BRL
on such matters and in form and substance acceptable to Lender;

         (C) a written certificate by the Secretary or an Assistant Secretary of
BIT, BII and BRL as to the names and  signatures  of the officers of such entity
authorized  to sign the Loan  Documents  to which such entity is a party and the
other  documents or  certificates  of such entity to be executed  and  delivered
pursuant thereto;

         (D) recent certificates, issued by the Secretary of State of the states
or applicable  governmental official for any foreign entity in which BTI, BII or
BRL is incorporated, stating that such entity is a corporation duly incorporated
and in good standing under the laws of that state;

         (E) recent  certificates,  issued by the  Secretaries  of State of each
state in which BTI,  BII or BRL is required to qualify to do  business,  stating
that such entity is in good standing as a foreign  corporation under the laws of
such state;

         (F) the executed Revolving Credit Note;

         (G) the financial  information  required by Section 5.4 hereof relating
to BTI, BII and BRL;

         (H) evidence of insurance  policies in form and substance  satisfactory
to Lender in such amounts and with such insurance companies as are acceptable to
Lender,  insuring  BTI,  BII and BRL against  such risks and with such  coverage
(including, without limitation, property damage, workmen's compensation,  public
liability, products liability, fire with extended coverage, vandalism, malicious
mischief,  and flood) as may be customary  for the business  being  conducted by
BTI, BII and BRL;  with each policy of insurance  providing  that it will not be
terminated or otherwise modified adversely to Lender's interest without at least
30 days' prior written notice to Lender;

         (I) a lien search  prepared by a search  company  acceptable  to Lender
showing  that no  perfected  liens exist of record  against any of the assets of
BTI, BII and BRL;

         (J) such  evidence as Lender may  reasonably  require that BTI, BII and
BRL have all licenses and permits necessary and material to the conduct of their
business as now being  conducted,  together with copies of all such licenses and
permits;

         (K) evidence that BTI, BII and BRL have paid or have made  arrangements
satisfactory  to  Lender  to pay  all  fees,  costs  and  expenses  incurred  in
connection  with  the  transactions   contemplated  hereby  including,   without
limitation, the fees and expenses of Lender's counsel; and

         (L) such other documents as Lender may reasonably require.

         SECTION 4.2 Additional Conditions Precedent.  The obligations of Lender
hereunder are subject to the further conditions precedent that:

         (A) the representations and warranties contained in this Agreement, and
in the other  Loan  Documents  shall be correct  and  accurate  in all  material
respects on and as of the date of each  Advance as though made on and as of such
date (excluding  representations and warranties which only speak as of a certain
date);

         (B)  no  Default  or  Event  of  Default  shall  have  occurred  and be
continuing or will result from the making of any Advance;

         (C)  there  shall  have  occurred  no  material  adverse  change in the
financial  condition,  or results of operations or prospects of BTI or BII since
the effective date of the most recent financial statements provided to Lender.

                                    ARTICLE V
                         REPRESENTATIONS AND WARRANTIES

         In addition to all other  representations  and  warranties set forth in
this Agreement, BTI, BII and BRL represent and warrant as follows:

         SECTION 5.1 Existence.  Each entity is a corporation duly incorporated,
validly existing, and in good standing under the laws of the jurisdiction of its
incorporation.  Each entity has all requisite power and authority, corporate and
otherwise,  to  conduct  its  business  and to own  its  properties  and is duly
qualified as a foreign  corporation in good standing in all other  jurisdictions
in which its failure so to qualify would have a material  adverse  effect on the
financial  condition or business of BTI, BII and BRL on a Consolidated  Basis (a
"Material Adverse Effect").

         SECTION 5.2 Authorization.  The execution, delivery, and performance by
each  entity  of each  Loan  Document  to  which  it is a party  has  been  duly
authorized by all necessary corporate action, and does not violate any provision
of the  charter or by-laws of such  entity and will not result in a breach of or
constitute a default under any agreement, indenture, or instrument to which such
entity is a party or by which  such  entity,  or any of its  properties,  may be
bound or affected which would have a Material Adverse Effect.

         SECTION  5.3  Validity  of  Documents.  Each  Loan  Document  when duly
executed and delivered will constitute the valid and legally binding  obligation
of the party executing it,  enforceable in accordance with its terms,  except as
such enforceability may be limited by bankruptcy,  insolvency,  or other similar
laws affecting the enforcement of creditors' rights generally.

         SECTION  5.4  Financial  Information.  The  financial  information  and
statements of each entity (or their predecessors in interest as the case may be)
(either  separately or on a Consolidated  Basis) previously  delivered to Lender
are true and correct,  and  accurately  reflect the  financial  position of such
entity as of such dates,  subject to year-end  adjustments,  in accordance  with
GAAP.  Since  such  dates,  there has been no  material  adverse  change in such
financial position.

         SECTION 5.5  Litigation.  There are no actions,  suits,  or proceedings
pending or, to the  knowledge of the  officers of BTI,  BII or BRL,  threatened,
against  any  such  entity,  or any of  their  properties  before  any  court or
governmental department,  commission,  board, bureau, agency, or instrumentality
(domestic or foreign) that, if determined adversely to such entity, would have a
Material  Adverse  Effect  or  which  relate  to  their  entering  into the Loan
Documents, or the consummation of the transactions contemplated thereby.

         SECTION 5.6 Places of  Business;  Location of  Collateral.  Each entity
represents  that the properties  listed on Exhibit 5.6 attached  hereto serve as
each entity's  respective chief place of business,  chief executive office,  and
the place where each entity keeps its Books and Records.

         SECTION 5.7 Contingent Liabilities. There are no suretyship agreements,
guarantees, or other Contingent Liabilities of BTI, BII or BRL that are required
to be included on a financial  statement  prepared in accordance  with GAAP that
are not included on the financial  statements described in Section 5.4 hereof or
otherwise disclosed in this Agreement.

         SECTION 5.8 Taxes.  Each BTI, BII and BRL has filed all tax returns and
reports  required  to be filed  before the date  hereof and have paid all taxes,
assessments,  and charges  imposed upon each entity or their  property,  or that
either is  required  to  withhold  and pay over,  to the  extent  that they were
required  to be paid  before the date  hereof,  except for any of the  foregoing
which BTI, BII or BRL may be contesting  in good faith and for which  reasonable
reserves have been established.

         SECTION 5.9  Encumbrances.  Each such entity's  property and assets are
not  subject  to  any  mortgage,  pledge,  security,  interest,  lien  or  other
encumbrance except for Permitted Encumbrances.

         SECTION  5.10  Consents.  To  the  best  of  Borrower'  knowledge,   no
authorization,   consent,   approval,   license,   exemption  by  or  filing  or
registration  with  any  court or  governmental  department,  commission,  board
(including  the Board of  Governors  of the  Federal  Reserve  System),  bureau,
agency, or  instrumentality,  domestic or foreign, or other Person is or will be
necessary for the valid execution,  delivery,  or performance by Borrower of the
Loan Documents.

         SECTION 5.11 ERISA.  No such entity is obligated to  contribute  to any
Multiemployer Plans and no such entity has any Withdrawal Liability with respect
to any  Multiemployer  Plan of which  any such  entity  or any  member  of their
Controlled Group had previously been a member.  All such Defined Benefit Pension
Plans and Defined  Contribution  Plans, as of the date hereof,  meet the minimum
funding  standards  of Section 302 of ERISA and Section 412 of the Code  without
regard to any funding  waiver and no  Prohibited  Transaction  has occurred with
respect to any such plan.

         (A) No  Reportable  Event has  occurred  with  respect  to any  Defined
Benefit  Pension Plan. No Defined  Benefit Pension Plan sponsored by Borrower or
any  member of their  Controlled  Group  has any  amount  of  "unfunded  benefit
liabilities"  (as defined in 4001(a)(18) of ERISA).  No trust was established in
connection  with any such Defined  Benefit  Pension Plan  pursuant to ss.4049 of
ERISA (as in effect on December 17, 1987) and no liability  (whether or not such
liability  is being  litigated)  has been  asserted  against  any  entity or any
Controlled Group member in connection with any such Defined Benefit Pension Plan
by the PBGC or by a trustee  appointed  pursuant to ss.4042 (b) or (c) of ERISA.
No lien has  attached  and no  person  has  threatened  to  attach a lien on any
property of any such entity or any  Controlled  Group  member as a result of any
failure to comply with the Code or ERISA.

         (B) Each such Defined  Benefit  Pension  Plan and Defined  Contribution
Plan, as most recently amended, including, without limitation, amendments to any
trust  agreement,  group annuity,  or insurance  contracts,  or other  governing
instrument,  is the subject of a favorable  determination letter by the Internal
Revenue Service with respect to its  qualification  under ss.401 (a) of the Code
or  an  application  for  such  determination  within  the  applicable  remedial
amendment  period  has been  filed and such  plans  comply,  both in form and in
operation, with the requirements of the Code and ERISA.

         (C) All Plans  maintained  by any such  entity  or any  member of their
Controlled  Group comply in all respects (i) with the  requirements  of the Code
and  the  regulations  thereunder  and  ERISA,  and  (ii)  in  form  with  those
requirements of the Code and the regulations  thereunder and ERISA which must be
met on the date hereof. There is not now, and has not been, any violation of the
Code or the  regulations  thereunder  or ERISA  with  respect  to the  filing of
applicable reports, documents, or notices regarding the Plans of Borrower or any
member of their  Controlled  Group with the Secretary of Labor, the Secretary of
the Treasury,  the PBGC or any other  governmental  entity or the  furnishing of
such documents to the participants or beneficiaries of the Plans.

         (D)  Neither  entity nor any member of their  Controlled  Group has any
unfunded liabilities of unfunded and uninsured "employee welfare benefit planet"
(as  defined  in  ss.3(1) of  ERISA).  There is not now,  and has not been,  any
violation of the "continuation coverage requirements" of "group health plans" of
former ss.162 (k) of the Code and the  regulations  thereunder (as in effect for
tax years  beginning on or before December 31, 1988) and of ss.4980B of the Code
and the regulations thereunder (as in effect for tax years beginning on or after
January  1, 1989) and Part 6 of  Subtitle B of Title i of ERISA with  respect to
any  Employee  Benefit  Plan of any entity or of any member of their  Controlled
Group to which such continuation coverage requirements apply.

         SECTION 5.12  Subsidiaries and Affiliates;  Fictitious Name. No Company
has any Subsidiaries or Affiliates other than as listed on Exhibit 5.12 attached
hereto  and do not trade  under any  fictitious  names,  other than as listed on
Exhibit 5.12 attached hereto.

         SECTION 5.13 Licenses,  Permits,  Etc. Each Company is in possession of
and  operating  in  compliance  with  all  franchises,  grants,  authorizations,
licenses, permits, easements, consents, certificates and orders required for the
conduct of their respective business as now conducted, and all of them are valid
and in full force and effect,  except for those which if not obtained  would not
have a Material Adverse Effect.

         SECTION  5.14  Compliance  with Laws.  To the best of their  knowledge,
Borrower are in material compliance with all laws, rules, regulations and orders
of all federal,  state, and governmental agencies and courts that are applicable
to them, to the conduct of their business,  or to the ownership and use of their
properties which if violated would have a Material Adverse Effect.

         SECTION 5.15  Environmental  Matters.  To the extent  necessary for the
conduct of its business,  each entity is in possession of and in compliance with
all required permits  relating to the discharge or release of liquids,  gases or
solids  into the air,  water,  and soil,  except  when the  failure to have such
permits would not have a material adverse effect on such entity's business. Each
entity does not refine, process,  generate, store, recycle,  transport,  dispose
of, or release into the  environment  any "hazardous  substance" as that term is
defined in CERCLA,  or any hazardous or toxic substances as those terms are used
in any state or local environmental statute or regulation,  except in compliance
with all Environmental Laws. No entity has received notice from any governmental
agency that it is a potentially  responsible  party in any  proceeding  under an
environmental  law. No entity has  received any notice of  violation,  citation,
complaint,  request for  information,  order,  directive,  compliance  schedule,
notice of any claim,  proceeding,  or litigation from any person  concerning any
entity's   compliance  with  any  Environmental  Law,  except  as  disclosed  in
Borrower's financial statements.

         SECTION 5.16 Intellectual Property.  Each entity possesses all patents,
trademarks,   copyrights,  tradenames,  trade  secrets  and  other  intellectual
property rights or licenses therefor,  that are required to conduct its business
without  conflict with the rights or claimed rights of others,  except where the
failure to so own or possess such intellectual  property rights would not have a
Material Adverse Effect.

         SECTION  5.17  Regulation  U,  Etc.  The  Loan  will not  constitute  a
violation  of  Regulation  G, T, U or X of the Board of Governors of the Federal
Reserve  System.  No part  of the  proceeds  of the  Loan  will be used  for any
purposes  which violate or are  inconsistent  with the provisions of any of such
regulations.

         SECTION 5.18 Labor Matters. There are no existing or, to each Company's
actual knowledge,  threatened or contemplated,  strikes, slowdowns, picketing or
work stoppages by any employees against any Company, any lockouts by any Company
of any of its  employees  or any labor  trouble  or other  occurrence,  event or
condition of a similar character which would have a Material Adverse Effect.

         SECTION 5.19 Outstanding  Judgments or Orders. To the best knowledge of
each Company,  each Company has satisfied all judgments against each of them, to
the extent  outstanding  and not stayed pending appeal for more than thirty (30)
days, and, to the best of actual knowledge, no entity is in default with respect
to any  judgment,  writ,  injunction,  decree,  rule or regulation of any court,
arbitrator or commission, board, bureau, agency or instrumentality,  domestic or
foreign,  pertaining to such entity, except for any judgment which will not have
a Material Adverse Effect.

         SECTION  5.20 No  Defaults  on  Other  Agreements.  To the best of each
Company's knowledge,  no entity is in default in the performance,  observance or
fulfillment  of  any  of  the  material  obligations,  covenants  or  conditions
contained in any agreement or instrument to which such entity is a party,  which
obligation,  covenant  or  condition  has not been waived in writing or cured or
which would not have a Material Adverse Effect.

         SECTION 5.21 Full  Disclosure.  No  representation  or warranty by each
entity in this  Agreement  and no  information  in any  statement,  certificate,
schedule or other  document  furnished  or to be  furnished  to Lender  pursuant
hereto, or in connection with the transactions  contemplated hereby, contains or
will contain any untrue  statement of a material  fact, or omits or will omit to
state a material  fact  necessary  to make the  statements  contained  herein or
therein not misleading.

         SECTION 5.22 Debt and Credit Arrangements.  Except for Debt owed by BTI
to Lender, as of the date hereof, neither BTI, BII nor BRL has any material debt
and no such  entity  is a party to any  material  credit  agreement,  indenture,
purchase agreement, guaranty, capital lease or other investments, agreements and
arrangements  presently in effect  providing  for or relating to  extensions  of
credit  in  respect  of which  any such  entity  is in any  manner  directly  or
contingently  obligated,  except for those disclosed on the financial statements
described in Section 5.4 above..

         SECTION 5.23 No Defaults on Other Agreements.  No Company is subject to
any charter or corporate  restriction that has a Materially  Adverse Affect.  No
Company is a party to any indenture,  loan or credit  agreement,  lease or other
agreement or instrument,  nor is subject to any charter or corporate restriction
that has a Material  Adverse Affect on any each  Company's  ability to carry out
its  obligations  under  the  Loan  Documents.  To the  best of  each  Company's
knowledge,  no Company is in default in any material respect in the performance,
observance  or  fulfillment  of any of the  material  obligations,  covenants or
conditions  contained in any agreement or instrument material to its business to
which it is a party.

                                   ARTICLE VI
                                    COVENANTS

         In  addition  to all  other  covenants  set  forth  in this  Agreement,
Borrower  covenants that, so long as any of the Liabilities  shall remain unpaid
and unless Lender shall otherwise consent in writing:

         SECTION 6.1 Use of  Proceeds.  The Loan  proceeds  will be used for the
purposes set forth in Article II hereof.

         SECTION 6.2 Financial Information. (A) Borrower will furnish to Lender,
as soon as  delivered  to any other  creditor,  and in any event  within 90 days
after the close of each fiscal year of Borrower,  audited consolidated financial
statements (income  statements and balance sheet),  and unaudited  consolidating
financial statements. Such audited financial information will contain the report
of a  certified  by  independent  certified  public  accountants  of  recognized
standing  selected by Borrower and  reasonably  acceptable  to Lender.  All such
financial information will be prepared according to GAAP.

         (B) Borrower will furnish to Lender,  as soon as delivered to any other
creditor  and in any event  within  forty-five  (45) days  after the end of each
fiscal quarter, unaudited, unconsolidated and consolidating financial statements
for the period then ended. All of the foregoing  financial  information shall be
in such detail as Lender may  reasonably  require,  and shall be prepared by and
accompanied by the certification referred to in (D) below.

         (C) Borrower will furnish to Lender, within thirty (30) days of the end
of each fiscal quarter,  an accounts receivable agings summary report of BII and
BRL in form and substance satisfactory to Lender.

         (D) Each financial  statement required hereunder will be accompanied by
(a) a  certification  in the form of Exhibit 6.2 attached hereto and made a part
hereof,  and (b) a certificate of the chief executive or chief financial officer
of Borrower stating that such officer has reviewed the Borrower's operations for
that  period  and  that no Event of  Default  or  Default  has  occurred  and is
continuing,  or if any such  Event of Default or  Default  has  occurred  and is
continuing,  a written  statement  setting  forth the  details  of such Event of
Default or Default,  stating  whether or not the same is continuing  and, if so,
the action that Borrower propose to take with respect thereto.  Such certificate
or  statement  will  also  include  a  reasonably  detailed  calculation  of the
financial ratios set forth in Section 6.5 and Section 6.6 below, for the purpose
of establishing whether Borrower was in compliance with the requirements of such
Sections as of the end of the period  covered by the  financial  statements.  In
addition,  the financial  statements  shall be  accompanied by a letter from the
accountant acknowledging that the Lender will rely upon the financial statements
and consenting to the Lender's reliance thereon.

         SECTION 6.3 Insurance.  Borrower will at all times carry insurance,  in
form  and  amount  customary  for  Borrower's  business,   and  underwritten  by
financially sound and reputable insurers reasonably satisfactory to Lender.

         SECTION 6.4 Encumbrances. Borrower, BII and BRL will not create, incur,
assume, or suffer to exist any mortgage,  pledge,  lien, or other encumbrance of
any kind upon, or any security interest in, any of their respective  property or
assets,  whether  now owned or  hereafter  acquired,  except  for the  Permitted
Encumbrances.  Borrower,  BII and BRL will not agree with any Person to restrict
their  respective  abilities  to  grant  mortgages,   pledges,  liens  or  other
encumbrances upon, or security interests in, any of their property or assets.

         SECTION 6.5  Borrower  and BII  Financial  Covenants.  Borrower and BII
shall,  on a consolidated  basis,  maintain the following  financial  covenants,
which shall be tested as of each March 31, June 30,  September  30 and  December
31.

         SECTION 6.5.1 Tangible Net Worth. The  consolidated  Tangible Net Worth
shall  exceed  $10,000,000,  plus 50.0% of the Net Income for the current  year,
plus the net proceeds of any stock offering.

         SECTION  6.5.2 Total  Liabilities  to Tangible Net Worth.  The ratio of
Total Liabilities to Tangible Net Worth shall not equal or exceed 0.30.

         SECTION 6.6  Borrower and  Subsidiary  Financial  Covenants.  Borrower,
together with all of Borrower's  subsidiaries,  shall, on a consolidated  basis,
maintain the  following  financial  covenants,  which shall be tested as of each
March 31, June 30, September 30 and December 31.

         SECTION 6.6.1 Current  Ratio.  The Current Ratio shall not be less than
2.5:1.0.

         SECTION 6.6.2 Tangible Net Worth. The  consolidated  Tangible Net Worth
shall equal or exceed the Tangible Net Worth as of the end of the prior calendar
year,  plus 50.0% of the Net Income for the current year,  plus the net proceeds
of any stock offering.

         SECTION  6.6.3 Net Income.  The  consolidated  Net Income  shall exceed
$2,000,000  on a  rolling  four  quarter  basis,  without  a loss in any two (2)
consecutive calendar year quarters.

         SECTION  6.6.4 Total  Liabilities  to Tangible Net Worth.  The ratio of
Total Liabilities to Tangible Net Worth shall not equal or exceed 0.50.

         SECTION  6.6.5  Capital  Expenditures/Acquisitions.  The  aggregate  of
capital expenditures,  loans,  investments or advances to entities which are not
or do not become a Guarantor  (specifically  to include  BRL), or funds used for
acquisitions  shall not exceed  $5,000,000 in any aggregate four (4) consecutive
calendar year quarters,  without Lender's prior written consent, except that the
limit shall increase to $10,000,000 upon the successful  completion of an equity
offering where the net proceeds to the Borrower would exceed $20,000,000.

         SECTION 6.7 Taxes. Borrower shall pay when due all taxes,  assessments,
and charges imposed upon Borrower or Borrower'  properties or that Borrower' are
required to withhold or pay over. Notwithstanding the foregoing,  Borrower shall
be entitled  to withhold  such  payment for any such tax,  assessment  or charge
while Borrower diligently contest such tax, assessment,  or charge in good faith
and by appropriate proceedings provided that Borrower maintain adequate reserves
therefor and provided that the effect of such proceedings stays the right of the
taxing authority to execute upon the Borrower' assets for such non-payment.

         SECTION 6.8 Guarantees, Etc. Borrower shall not, without Lender's prior
written consent, become liable on the obligation of another Person, except for a
Subsidiary or otherwise incur any consensual Contingent  Liability,  except with
respect to a Subsidiary,  except by  endorsement of negotiable  instruments  for
deposit or collection in the usual course of business.

         SECTION 6.9 Loan and  Investments.  Borrower shall not make any Loan or
investments  (including  without  limitation  Loan  to  officers  or  Loan to or
investments in Affiliates or Subsidiaries) except for:

         (A)      investments in:

                  (1)      assets to be used in the ordinary course of business,

                  (2)      obligations of Lender,

                  (3)      obligations of  the U.S. government and its agencies,

                  (4)      money  market  instruments,   repurchase  agreements,
                           commercial paper,  certificates of deposit,  bankers'
                           acceptances,  Eurodollar  certificates of deposit and
                           approved money market funds,

                  (5)      corporate   bonds,  including   Eurodollar  issues of
                           U.S. corporations and U.S. dollar  denominated issues
                           of foreign corporations,

                  (6)      floating rate securities without interest rate caps,

                  (7)      asset-backed securities,

                  (8)      foreign  government and provincial issues, and issues
                           of  international  agencies  that  are  U. S.  dollar
                           denominated,

                  (9)      Joint ventures where the entity becomes a  Guarantor,
                           and

                  (10)     any now existing or hereafter created Guarantor.

Individual  holdings of  commercial  paper must be rated A-1,  P-1, or better by
either  Standard and Poor's  Corporation  ("S&P") or Moody's  Investor  Services
("Moody's"),  at the time of  purchase.  Securities  of Issuers with a long-term
credit rating must be rated at least [AAA/Asa]  [AA-/Aa3] [A-/A3] [BBB-/Baa3] by
S & P's or Moody's, respectively.

         (B)      Loan to:

                  (1)      any Person,  not  a  Borrower  or  Affiliate   of   a
                           Borrower, not to exceed $100,000.00 in the aggregate,

                  (2)      any Affiliate of a Borrower not to exceed $500,000.00
                           in the aggregate.

         SECTION 6.10 Compliance with Laws. Borrower shall comply with all laws,
rules, and regulations  applicable to it in the operation of its business if the
failure to so comply could have a Material Adverse Effect.

         SECTION 6.11 Environmental Matters. (A) To the extent necessary for the
conduct of their  business,  Borrower  and BII will  obtain and comply  with all
required  permits,  licenses,   registrations  and  approvals  relating  to  the
discharge or release of liquids,  gases or solids into the  environment.  To the
extent that such are applicable to the conduct of their  business,  Borrower and
BII  will  comply  with  all  environmental  laws  relating  to the  generation,
treatment,  storage,  transportation,   disposal,  release  or  cleanup  of  any
"hazardous substance".

         (B) Borrower or BII will  immediately  notify Lender if Borrower or BII
receives (i) any notice from any  governmental  agency that Borrower or BII is a
potentially  responsible party in any proceeding under  environmental  law, (ii)
any notice of any claim, proceeding,  litigation, order, directive, citation, or
request for information concerning  environmental  conditions,  or notice of any
alleged violation of any environmental law, or (iii) any information  concerning
any potentially adverse environmental condition,  including, but not limited to,
any spilling, leaking, discharge, release, or threat of release of any hazardous
substance.

         (C) Borrower and BII shall comply with any notice or directive from any
governmental authority,  whether state, federal, or local, regarding the removal
or discharge of any  hazardous  substance on any of its  properties  within such
period as may be required therein unless the same is being contested by Borrower
or BII in good faith.  Borrower or BII shall,  upon  request,  provide a bond or
title insurance endorsement reasonably  satisfactory to Lender insuring Lender's
continued lien on the Collateral affected by such notice or directive.

         (D) Borrower, BII and BRL hereby indemnify and agree to defend and hold
harmless Lender,  its parent  corporation,  subsidiaries,  successors,  assigns,
officers,  directors,  shareholders,  employees,  agents  and  counsel  from and
against any and all claims, actions, causes of action,  liabilities,  penalties,
fines,  damages,  judgments,  losses, suits,  expenses,  legal or administrative
proceedings,  interest, costs and expenses (including court costs and reasonable
attorneys',  consultants'  and  experts'  fees)  arising  out of or in  any  way
relating to (i) the  presence  of any  substance  which is or becomes  regulated
under any  Environmental  Law whether now or hereafter  enacted,  on, beneath or
arising from any property  used or occupied by  Borrower,  BII or BRL;  (ii) the
failure of  Borrower,  BII or BRL to comply with any  Environmental  Law;  (iii)
Borrower's,  BII's or BRL's breach of any of the  representations and warranties
or  covenants  contained  herein;  (iv)  any  notice  of  violation,   citation,
complaint,  request for  information,  order,  directive,  compliance  schedule,
notice of claim,  consent decree,  action,  litigation or proceeding  brought or
instituted  by  any  governmental  authority  or any  third  party  under  or in
connection with any  Environmental Law or based on the presence of any hazardous
substances;  and (iv) the imposition or recording of a lien against any property
of or occupied by Borrower, BII or BRL pursuant to any Environmental Law, unless
due solely to the gross  negligence  or  willful  misconduct  of  Lender.  IT IS
INTENDED THAT THE INDEMNITY PROVIDED IN THIS SECTION SHALL SURVIVE THE REPAYMENT
OF THE LIABILITIES.

         SECTION  6.12  Maintenance  of  Property.  Borrower,  BII and BRL  will
maintain  all of its  property  (subject to ordinary  wear and tear)  materially
useful to it business in good condition and repair.

         SECTION 6.13  Limitations  on  Borrowing.  Except for  borrowings  from
Lender  hereunder,  Borrower will not incur any indebtedness for borrowed money,
or purchase any assets or property on an installment  or other deferred  payment
basis.  BRL will not incur  indebtedness in excess of $500,000  without Lender's
prior written consent.

         SECTION 6.14 Reports;  Change in  Locations.  (A) Borrower will furnish
the following to Lender:

         (1) as soon as  possible,  and in any event  within five (5) days after
Borrower  becomes aware of the occurrence of any Default or Event of Default,  a
written  statement by the chief executive or chief financial officer of Borrower
setting forth the details of such Default or Event of Default,  stating  whether
or not the same is continuing  and, if so, the action  proposed to be taken with
respect thereto;

         (2) immediately after receiving knowledge thereof, notice in writing of
all actions, suits, or proceedings before any court or governmental  department,
commission,  board,  bureau,  agency, or  instrumentality,  domestic or foreign,
affecting Borrower where the potential liability is reasonably  determined to be
in excess of  $150,000,  individually,  or  $150,000 in the  aggregate  and such
potential liability is uninsured;

         (3) as soon as possible and in any event within five (5) business  days
after Borrower  becomes aware of the occurrence of a material  adverse change in
the business,  properties,  operations, or condition (financial or otherwise) of
Borrower,  a written statement by the chief executive or chief financial officer
of Borrower setting forth details of such material adverse change and the action
proposed to be taken with respect thereto;

         (4) immediately after receiving knowledge thereof, notice in writing of
any strike,  walkout,  boycott or other labor  dispute  involving  the Borrower,
where such labor dispute would have a Material Adverse Effect; and

         (5)  such  other  information  respecting  the  Borrower's  properties,
operations, and condition (financial or otherwise) as Lender may at any time and
from time to time reasonably request.

         SECTION 6.15 ERISA.  For purposes of this  Section,  the term  Borrower
includes any member of Borrower's  Controlled  Group (A) Borrower will comply in
all material  respects with the provisions of ERISA and the Code with respect to
any Defined  Benefit  Pension Plan and Defined  Contribution  Plan including the
timely filing of required annual reports and the payment of PBGC premiums.

         (B) Borrower will furnish to Lender,  upon Lender's  request,  promptly
after the filing thereof with the United States Secretary of Labor and the PBGC,
copies of each  annual or other  report  with  respect to each  Defined  Benefit
Pension Plan and Defined Contribution Plan maintained by Borrower.

         (C) Borrower will cause to be made all contributions  required to avoid
any accumulated  funding deficiency (as defined in ss.412(a) of the Code and the
regulations  thereunder and ss.302 (a) of ERISA), unless waived, with respect to
any pension  plan (as defined in ss.3(2) of ERISA),  other than a  Multiemployer
Plan,  which  is  subject  to Part 3 of the  Subtitle  B of  Title I of ERISA or
Section 412 of the Code and the regulations thereunder and that is maintained by
Borrower or any member of their Controlled Group.

         (D) As soon as possible  (and in any event  within five (5) days) after
Borrower  has reason to know (i) that any  Reportable  Event has  occurred  with
respect to any Defined Benefit  Pension Plan  maintained by Borrower,  (ii) that
any Defined Benefit Pension Plan maintained by Borrower is to be terminated in a
distress  termination  (within the meaning of 4041(c) of ERISA),  (iii) that the
PBGC has  instituted or will  institute  proceedings  under Title IV of ERISA to
terminate any Defined  Benefit  Pension Plan  maintained by Borrower,  (iv) that
Borrower has incurred Withdrawal  Liability from a Multiemployer Plan maintained
by  Borrower,  or (v) that any  Multiemployer  Plan to which  Borrower  has made
contributions is in Reorganization,  Borrower will furnish a statement to Lender
setting forth the details as to such  Reportable  Event,  distress  termination,
termination proceedings, Withdrawal Liability, or Reorganization, and the action
that Borrower proposes to take with respect thereto, together with a copy of any
notice of such Reportable Event or distress  termination given to the PBGC, or a
copy  of  any  notice  of  termination  proceedings,   Withdrawal  Liability  or
Reorganization received by Borrower.

         (E)  Borrower  will  furnish to Lender as soon as possible  (and in any
event  within  five (5) days)  after  receipt  thereof a copy of any notice that
Borrower  receives  from the PBGC or the  Internal  Revenue  Service or from the
sponsor of any  Multiemployer  Plan that sets forth or proposes any action to be
taken or  determination  made by the PBGC or the Internal  Revenue  Service with
respect to any  Defined  Benefit  Pension  Plan,  Defined  Contribution  Plan or
Multiemployer Plan.

         (F)  Borrower  will  promptly  notify  Lender of any taxes,  penalties,
interest  charges  and other  financial  obligation  that have been  assessed or
imposed  or that  Borrower  has  reason to believe  may be  assessed  or imposed
against  Borrower  by the  Internal  Revenue  Service,  the  PBGC  or any  other
governmental entity with respect to any Plan or Multiemployer Plan.

         (G) Borrower will promptly notify Lender of the adoption of any Defined
Benefit  Pension  Plan  or  Defined  Contribution  Plan  or  any  obligation  to
contribute to any Multiemployer Plan by Borrower.

         (H) Borrower will not contribute to any  Multiemployer  Plan.  Borrower
will not permit (i) with respect to any Employee  Benefit Plan,  any  Prohibited
Transaction  or  Prohibited  Transactions  under ERISA or the Code  resulting in
liability of Borrower in excess of $25,000 in the aggregate or (ii) with respect
to any Defined Benefit  Pension Plan, any Reportable  Event under ERISA, if upon
termination  of the  Plan or  Plans  with  respect  to  which  one or more  such
Reportable Events has occurred there is or would be any liability of Borrower to
the PBGC in excess of $25,000 in the  aggregate.  Borrower will not  voluntarily
take or fail to take any action that would  result in any  Withdrawal  Liability
becoming due.

         (I) Borrower will not fail to make required minimum  contributions with
respect to a Defined Benefit  Pension Plan,  resulting in a lien (as provided in
ss.302 (f) of ERISA) against Borrower.

         (J)  Borrower  will not permit the  adoption of a plan  amendment  that
results in significant underfunding (as defined in ss.307 of ERISA) of a Defined
Benefit Pension Plan that requires Borrower to provide collateral or security.

         (K) Borrower will not permit the unfunded  liabilities  of unfunded and
uninsured  employee  welfare benefit plans" (as defined in ss.3 (1) of ERISA) of
Borrower to exceed, in the aggregate, $10,000.

         (L) Borrower will not acquire or permit the acquisition by any of their
Controlled  Group  members,  of any  trade  or  business  that has  directly  or
indirectly  incurred an  unfunded  benefit  liability  (as defined in ss.4001 of
ERISA)  under  any  Defined  Benefit  Pension  Plan  prior to such  acquisition.
Borrower will not acquire or permit the acquisition, by Borrower of any trade or
business that has directly or indirectly  incurred an unfunded benefit liability
under any Defined Benefit Pension Plan.

         SECTION 6.16 Mergers,  Etc. Borrower,  BII or BRL will not, directly or
indirectly  and  without  the prior  written  consent  of  Lender:  (A) merge or
consolidate with any other Person,  (B) sell or lease or otherwise  transfer all
or any substantial  part of any of their  respective  assets to any Person,  (C)
other than as specifically provided for in Section 6.6.5 hereof, acquire whether
through purchase or exchange of capital stock or assets or otherwise, all or any
substantial  part of the assets of any other Person,  or any capital stock of or
other equity interest in any other Person,  unless otherwise  approved by Lender
in writing, (D) consummate any recapitalization or reorganization, or (E) create
or acquire any  Subsidiary.  Any  acquisition by exchange of Borrower's  capital
stock as  specified  herein may not  result in the  violation  of the  financial
covenants or any other  representation  or covenant of this Agreement.  Upon the
acquisition or creation of a Subsidiary,  such  Subsidiary  shall  guarantee the
Borrower's  obligations hereunder and the Borrower shall cause the Subsidiary to
execute this  Agreement,  and such other  documents as the Lender may reasonably
require,  within  thirty  (30)  days  of  the  acquisition  or  creation  of the
Subsidiary.

         SECTION  6.17 Change of Business.  Borrower,  BII and BRL will not make
any material change in the nature of their  respective  business as conducted on
the date hereof.

         SECTION  6.18  Disposal  of  Assets.  Borrower,  BII,  and BRL will not
dispose of any assets except in the ordinary course of business.

         SECTION 6.19 Intellectual Property. Borrower, BII and BRL will maintain
all of their respective patents, trademarks, copyrights, trade secrets and other
intellectual property rights and licenses therefor,  which are material to their
business,  if any, in full force and effect  until their  respective  expiration
dates, if any.

         SECTION 6.20 Dividends and  Distributions.  Borrower,  BII and BRL will
not  declare  or pay any  dividend,  or  declare  or make any other  payment  or
distribution  on, or to  acquire,  any of its capital  stock,  or make any other
payment to  shareholders  if there then  exists a Default or Event of Default or
such  distribution  or  dividend  would  cause a  Default  or Event  of  Default
hereunder.

         SECTION 6.21  Indemnification.  Borrower,  BII and BRL hereby indemnify
and agree to  protect,  defend,  and hold  harmless  Lender  and its  directors,
officers, employees, agents, attorneys and shareholders from and against any and
all losses, damages,  expenses or liabilities of any kind or nature and from any
suits,  claims,  or demands,  including all reasonable  counsel fees incurred in
investigating, evaluating, or defending such claims, suffered by any of them and
caused by, relating to, arising out of,  resulting from, or in any way connected
with this  Agreement,  the Note,  any other Loan  Document  and any  transaction
contemplated herein or therein including,  but not limited to, claims based upon
any act or omission by Lender in connection with this Agreement, the Note or any
Loan Document and any transaction  contemplated  herein or therein to the extent
not caused by the gross negligence, bad faith or willful misconduct of Lender or
its directors, officers, employees, agents or attorneys. If Borrower, BII or BRL
shall have  knowledge  of any claim or  liability  hereby  indemnified  against,
Borrower,  BII and BRL  shall  promptly  give  written  notice to  Lender.  THIS
COVENANT  SHALL  SURVIVE  THE  PAYMENT  OF  THE  INDEBTEDNESS  CREATED  BY  THIS
AGREEMENT, THE NOTES OR THE LOAN DOCUMENTS.

         SECTION 6.22 Licenses; Permits. Borrower, BII and BRL will maintain the
validity,  force and effect of, and operate in compliance  with, all franchises,
grants, authorizations, licenses, permits, easements, consents, certificates and
orders material to the conduct of their respective business.

         SECTION  6.23  RICO.  Borrower,  BII and BRL  shall  not  engage in any
conduct or fail to take any action  which  will,  or would,  under the facts and
circumstances  relative  thereto,  violate the Racketeer  Influenced and Corrupt
Organization Act as amended from time to time, 18 U.S.C. ss.ss.1961-68.

                                   ARTICLE VII
                                     DEFAULT

         SECTION  7.1 Events of Default.  Each of the  following  shall,  at the
option of the Lender, be an event of default (an "Event of Default"):

         (A)  if Borrower shall fail to pay when due  any  interest,  principal,
fees or any other Liabilities;

         (B) if a non-monetary  payment based default shall occur under any Loan
Document and such  default  continues  after thirty (30) days written  notice to
Borrower,  or if Borrower,  BII or BRL fail to perform their covenants under any
Loan Document  (including without limitation this Agreement) when and as due and
such  failure  continues  for more than  thirty (30) days after  written  notice
thereof to Borrower,  provided,  however,  if such default cannot  reasonably be
cured within the thirty (30) day period,  it shall not be a default hereunder so
long as the Borrower commences the cure within the thirty (30) day period and so
long as Borrower diligently pursues the cure to completion;

         (C) if any  representation or warranty made by Borrower,  BII or BRL in
any Loan Document or in any certificate,  agreement,  instrument,  statement, or
report  contemplated  by or made or delivered  pursuant to or in connection with
any thereof,  or if any information  furnished to Lender  pertaining to the Loan
shall prove to have been incorrect in any materially adverse respect as and when
made;

         (D) if  Borrower,  BII or BRL  shall  fail  to pay any  Funded  Debt or
Liabilities  in excess of  $250,000  owing by any of them,  or any  interest  or
premium  thereon,  when due,  whether  owed to Lender  or any other  Person  and
whether such Funded Debt or Liabilities shall become due by scheduled  maturity,
by required prepayment, by acceleration,  by demand, or otherwise, or shall fail
to perform any term,  covenant,  or agreement on its part to be performed  under
any  agreement  or  instrument  evidencing  or  securing or relating to any such
Funded Debt or  Liabilities in excess of $250,000 when required to be performed,
if the  effect of such  failure  is to  accelerate,  or to permit  the holder or
holders of such Funded Debt or Liabilities  to accelerate,  the maturity of such
Funded  Debt or  Liabilities,  whether or not such  failure to perform  shall be
waived by the holder or holders of such Funded Debt or Liabilities,  unless such
waiver  has the  effect of  terminating  the right of such  holder or holders to
accelerate the maturity of such Funded Debt as a result of such failure;

         (E) if Borrower, BII or BRL shall be adjudicated bankrupt or insolvent,
or admit in writing its  inability  to pay its debts as they  mature;  or if any
such entity shall make an assignment for the benefit of its creditors; or if any
such  entity  shall  apply for or consent to the  appointment  of any  receiver,
trustee,  or similar  officer for it or for all or any  substantial  part of its
property;  or any such receiver,  trustee, or similar officer shall be appointed
without  the  application  or  consent  of any such  entity  and shall  continue
undischarged  for a period of 60 days; or if any such entity shall institute (by
petition,   application,   answer,   consent,   or  otherwise)  any  bankruptcy,
insolvency,  reorganization,  arrangement,  readjustment  of debt,  dissolution,
liquidation,  or  similar  proceeding  relating  to them  under  the laws of any
jurisdiction;   or  if  such  proceeding   shall  be  instituted  (by  petition,
application, or otherwise) against any such entity and an order for relief shall
be entered in such proceeding or such proceeding shall remain  undismissed for a
period of 60 days; or if any judgment,  writ, warrant of attachment or execution
or similar process shall be issued or levied against property of any such entity
that  represents a  substantial  portion of the property of such entity and such
judgment,  writ,  or similar  process shall not be released,  vacated,  or fully
bonded within 60 days after its issue or levy;

         (F) if (1) any Reportable Event, or any failure of compliance  required
by Section 6.15 hereof, that Lender reasonably  determines in good faith creates
a reasonable  likelihood of the  termination of any Defined Benefit Pension Plan
of Borrower or of the  appointment  by the  appropriate  United States  District
Court of a trustee to administer any such Plan of Borrower,  shall have occurred
and be continuing 60 days, or (2) any such plan shall be terminated,  or (3) the
plan  administrator  of any such  Plan  shall  file  with  the PBGC a notice  of
intention to terminate such Defined  Benefit Pension Plan, or (4) the PBGC shall
institute  proceedings to terminate any such Defined  Benefit Pension Plan or to
appoint a trustee to administer any such Defined  Benefit  Pension Plan and such
proceedings  shall remain  undismissed or unstayed for 30 days and if, in any of
the  cases  described  in the  foregoing  clauses  (1) to  (4),  Lender  further
determines  that the amount of the  unfunded  guaranteed  benefits  (within  the
meaning of Title IV of ERISA) resulting upon termination of such Defined Benefit
Pension Plan would have a material  adverse effect on the business,  properties,
operation,  or condition  (financial or otherwise) of Borrower,  BII or BRL if a
lien against the assets of Borrower, BII or BRL were to result under ERISA; or

         SECTION  7.2  Remedies.  If any  Event  of  Default  other  than  those
described in Section 7.1(E) shall occur and be continuing, then upon notice from
Lender to Borrower, or if any Event of Default described in Section 7.1(E) shall
occur then automatically,  (A) the Revolving Credit and the right of Borrower to
request Advances  thereunder shall terminate;  (B) the Liabilities  shall be due
and payable immediately without presentment,  demand,  protest or further action
of any kind;  (C)  Lender  may  exercise  its  rights  under  any Loan  Document
(including  this  Agreement);  (D) Lender may set off any  Borrower's,  BII's or
BRL's funds or property in Lender's  possession  against the Liabilities in such
order as Lender  shall  elect;  and (E) Lender may exercise any other rights and
remedies available to Lender whether available at law, in equity, or otherwise.

                                  ARTICLE VIII
                              ADDITIONAL PROVISIONS

         SECTION 8.1 No Waiver;  Cumulative Remedies.  Lender's failure or delay
in  exercising  any right,  power,  or remedy  hereunder  shall not operate as a
waiver  thereof;  nor shall any single or partial  exercise  of any such  right,
power, or remedy preclude any other or further  exercise thereof or the exercise
of any other  right,  power,  or remedy  hereunder.  No waiver of any  provision
hereof  shall be  effective  unless the same  shall be in writing  and signed by
Lender.  The remedies  herein  provided are  cumulative and not exclusive of any
remedies provided by law.

         SECTION  8.2  Notices.  All  notices,  requests,   demands,  and  other
communications required or permitted hereunder shall be in writing, and shall be
given to such party at its  address  below or at such other  address as shall be
designated  by such party in a notice to each  other  party  complying  with the
terms of this Section. All notices, requests,  demands, and other communications
provided  for  hereunder  shall be  effective  (A) if given by mail,  three  (3)
business  days after  deposit in the mails,  with first class  postage  prepaid,
addressed  as  aforesaid,  or  (B)  if  given  by any  other  means,  (including
telecopy), when delivered or received at the aforesaid addresses:

         If to Lender:

                  Fleet Bank, N.A.
                  1125 Route 22 West
                  Bridgewater, NJ 08807
                  Attention: Craig W. Heal, Vice President

         If to Borrower, BII or BRL:

                  Barringer Technologies Incorporated
                  219 South Street
                  Murray Hill, NJ 07974
                  Attention: Chief Financial Officer

         SECTION  8.3  Set-off.  Upon an Event of Default,  Lender  shall have a
right of set-off against,  a lien upon, and a security  interest in all property
of Borrower,  BII or BRL now or at any time in the  possession  of Lender in any
capacity whatever,  including, but not limited to such entities' interest in any
deposit account, as security for the Liabilities,  including without limitation,
the obligations of Borrower under the Loan Documents and to reimburse Lender for
any returned checks.

         SECTION 8.4 Costs and Expenses.  Borrower,  BII and BRL agree to pay on
demand  (A) all  reasonable  out-of-pocket  costs  and  expenses  of  Lender  in
connection  with the  preparation,  execution and delivery of the Loan Documents
and in connection with any request for an amendment,  modification, or waiver of
any  of the  provisions  of any  thereof  (including  the  reasonable  fees  and
out-of-pocket  expenses  of  counsel  with  respect  thereto);  (B) all  filing,
recording,  and  similar  fees and  charges;  and (C) all  reasonable  costs and
expenses,  if any,  of Lender in  connection  with the  enforcement  of any Loan
Document  (including the  reasonable  fees and  out-of-pocket  expenses of legal
counsel with respect  thereto)  after the occurrence of a Default or an Event of
Default.

         SECTION 8.5 Governing  Law. This Agreement and the other Loan Documents
shall be  governed in all  respects  by the law of the State of New Jersey,  the
jurisdiction  in which the Loan Documents have been executed and delivered,  and
for all purposes shall be construed in accordance with such law.

         SECTION 8.6 Survival of Agreements  and  Representations;  JURY WAIVER;
Consent to  Jurisdiction.  All agreements,  representations  and warranties made
herein shall survive the delivery of this  Agreement and the Notes.  Any and all
judicial  proceedings  brought by Lender against Borrower,  BII or BRL or any of
them  with  respect  to this  Agreement  may be  brought  in:  (A) any  court of
competent  jurisdiction in the State of New Jersey; and (B) any Federal district
court having subject matter  jurisdiction  and being located in the State of New
Jersey.   Borrower,  BII  and  BRL  hereby  accept,  for  themselves  and  their
properties,  the non-exclusive jurisdiction of the aforesaid courts and agree to
be bound by any  judgments  rendered  by such  courts  in  connection  with this
Agreement.  Neither  Borrower,  BII  or BRL  will  move  to  transfer  any  such
proceeding  to any  different  court.  Any  such  process  shall  be  served  in
accordance  with New Jersey law.  Nothing  herein  limits the right of Lender to
bring proceedings against Borrower in the courts of any other jurisdiction.

         AFTER   CONSULTATION   WITH   COUNSEL,   AND  WITH   KNOWLEDGE  OF  THE
CONSEQUENCES, BORROWER AND LENDER HEREBY WAIVE ALL RIGHTS TO DEMAND A JURY TRIAL
AND AGREE THAT ALL SUITS WILL BE HEARD BY JUDGE ONLY.

         SECTION 8.7 Binding  Effect;  Assignment.  The Loan Documents  shall be
binding upon and inure to the benefit of Borrower,  BII,  BRL,  Lender and their
respective successors and assigns,  except that Borrower, BII nor BRL shall have
the right to assign or delegate any respective  rights or obligations  under any
of the Loan Documents.

         SECTION 8.8 Captions.  Article, Section and subsection headings used in
this Agreement are for convenience only and shall not affect the construction of
this Agreement.

         SECTION 8.9  Amendments.  This  Agreement's  provisions  may be waived,
modified or amended  only by written  agreement  or  agreements  entered into by
Borrower and Lender.  No such waiver,  modification or amendment shall extend to
or affect any obligation not expressly  waived,  modified or amended,  or impair
any right of Lender related to such obligation.

         SECTION 8.10 Usury.  Nothing herein  contained or in the Notes,  or any
other Loan Document,  nor any transaction  related thereto shall be construed or
shall operate either  presently or  prospectively to require Borrower (i) to pay
interest at an unlawful rate and shall  require  payment of interest only to the
extent of such lawful  rate,  or (ii) to make any payment or do any act contrary
to law, but if any  provision  herein or therein  contained  shall  otherwise so
operate to invalidate this Agreement,  the Notes, or any other Loan Document, in
whole or in part,  then such  provision only shall stricken and the remainder of
this Agreement,  the Note, and the other Loan Documents  shall remain  operative
and in full force and  effect.  Any  interest  paid in excess of the lawful rate
shall be refunded to Borrower.  Such refund shall be made by  application of the
excessive  amount of  interest  paid  against  any sums  outstanding  under this
Agreement  and shall be applied in such  order as Lender may  determine.  If the
excessive  amount of interest paid exceeds the sums outstanding  hereunder,  the
excess portion shall be refunded in cash by Lender. Any such crediting or refund
shall not cure or waive any default by Borrower  hereunder  or under the Note or
any other Loan Document.  Borrower agrees,  however, that in determining whether
or not any  interest  payable  exceeds the highest  rate  permitted  by law, any
non-principal  payment (except payments specifically stated in this Agreement to
be "interest"),  including  without  limitation  prepayment  premiums,  shall be
deemed,  to the extent  permitted  by law,  to be an  expense,  fee,  premium or
penalty rather than interest.

         SECTION 8.11 Entire  Agreement.  This Agreement,  the Exhibits attached
hereto and the Loan  Documents  constitute  the entire  understanding  among the
parties with respect to the subject  matter  hereof,  and supersedes any and all
contemporaneous  and prior agreements between the parties hereto with respect to
the subject matter hereof.

         SECTION 8.12 Counterparts. This Agreement may be executed in any number
of  counterparts,  each of which shall be an original and all of which  together
shall constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties hereto,  intending to be legally bound,
have executed this Agreement, as of the date first written above.

BARRINGER TECHNOLOGIES INCORPORATED BARRINGER INSTRUMENTS, INC.


By: /s/Stanley Binder                                   /s/Stanley Binder
    -------------------                             By: ----------------------
    Name: Stanley Binder                                  Name: Stanley Binder
    Title:   President                                    Title:   President

        /s/Richard S. Rosenfeld                        /s/Richard S. Rosenfeld
Attest: ------------------------                Attest:-----------------------
         Richard S. Rosenfeld                          Richard S. Rosenfeld
         Vice President Finance                        Vice President Finance


BARRINGER RESEARCH LIMITED


By: /s/Stanley Binder
    ---------------------
    Name: Stanley Binder
    Title: Director/Authorized Signatory



FLEET BANK, N.A.


By: /s/Craig W. Heal
    ---------------------
    Name: Craig W. Heal
    Title: Vice President




<PAGE>



                                  EXHIBIT 2. 3

                              REVOLVING CREDIT NOTE

$5,000,000.00                                              Princeton, New Jersey
                                                                  March 13, 1998

         The  undersigned,  BARRINGER  TECHNOLOGIES  INCORPORATED  (the "Maker")
hereby  promises to pay to the order of FLEET BANK,  N.A.  (the  "Payee"} as and
when  due as set  forth in the  Loan  Agreement  (as  hereinafter  defined)  the
principal sum of Five Million Dollars ($5,000,000.00} or, if less, the aggregate
principal  amount (as shown by Payee's  records,  which shall  constitute  prima
facie evidence thereof) of all advances  (collectively,  the "Advances") made by
Payee under the  Revolving  Credit  provided for in and made pursuant to Section
2.1 of the Revolving Credit Loan Agreement, dated the date hereof, between Maker
and Payee (the "Loan Agreement", which Advances shall be due and payable in full
on or before  the  Revolving  Credit  Expiration  Date,  as  defined in the Loan
Agreement.  Capitalized  terms used herein and not otherwise  defined shall have
the meanings given such terms in the Loan Agreement.

         The undersigned  further promises to pay to the order of Payee interest
on the unpaid  principal  amounts of the Advances from the  respective  dates on
which the  Advances  are made until such  principal  amounts have been repaid in
full, payable at the times and rates provided in the Loan Agreement.

         Maker hereby waives presentment, demand for payment, notice of dishonor
or acceleration, protest and notice of protest, and any and all other notices or
demands in connection  with the delivery,  acceptance,  performance,  default or
enforcement  of this Note  except  any  notice  expressly  required  in the Loan
Agreement.  This is the Revolving  Credit Note  mentioned in, and is entitled to
the benefits of, the Loan Agreement.

         IN WITNESS WHEREOF, Maker hereby executes this Note on the day and year
first above written.

         BARRINGER TECHNOLOGIES INCORPORATED

         By:--------------------

         Name: Stanley Binder
         Title: President

         Attest:----------------

         Richard S. Rosenfeld
         Vice President Finance



<PAGE>



                                   EXHIBIT 5.6
                               BUSINESS LOCATIONS

Barringer Technologies Incorporated

         219 South Street
         Murray Hill, New Jersey 07974

Barringer Instruments, Inc.

         219 South Street
         Murray Hill, New Jersey 07974

Barringer Research Limited

         1730 Aimes Boulevard
         Mississauga, Ontario, Canada L4W lV1





<PAGE>



                                  EXHIBIT 5.12
                       LIST OF SUBSIDIARIES AND AFFILIATES

Barringer Technologies Incorporated

         219 South Street
         Murray Hill, New Jersey 07974

Barringer Instruments. Inc.

         219 South Street
         Murray Hill, New Jersey 07974

Barringer Research Limited

         1730 Aimes Boulevard
         Mississauga, Ontario, Canada L4W lV1



<PAGE>



                                   EXHIBIT 6.2

                     FORM OF FINANCIAL STATEMENT ATTESTATION

To: FLEET BANK, N.A.

I (we) hereby  submit to Fleet Bank,  N.A.  ("Lender,')  my (our)  Audited/House
Prepared  Financial  Statement dated ------- covering the period  ------------of
for the  purpose  of either  applying  for credit or for  supporting  continuing
credit accommodations.

I (we) am (are) submitting this statement to Lender as being true,  accurate and
complete  as of the date it has been  submitted.  I  understand  that  knowingly
providing  Lender with false  information  for the purpose of inducing Lender to
extend or continue accommodations is a federal crime.

I (we),  intending  to be legally  bound,  hereby  affirm  and attest  that this
financial statement, consisting of ------- pages (front and reverse counted as 1
) is true and correct to the best of my (our) knowledge.

I certify  that no Event of Default  has  occurred  under the  Revolving  Credit
Agreement as of the date hereof.

As of the date of this Certification:

1. Borrower and BII Financial Covenants.

         (a) The Tangible Net Worth Ratio is -----------; and
         (b) The Total Liabilities to Tangible Net Worth Ratio is -------------

1. Borrower and Subsidiary Financial Covenants.

         (a) The Current Ratio is ------------;
         (b) The Tangible Net Worth Ratio is --------;
         (c) The Net income is --------; and
         (d) The Total Liabilities to Tangible Net Worth Ratio is -----------.

         ---------------------------
         Borrower's Names

         ---------------------------
         Officer's Signature
         (Title, if appropriate)

         ---------------------------
         Date Signed

Note: This form is to be affixed to the financial statements, as submitted.





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