BARRINGER TECHNOLOGIES INC
8-K, 1998-09-02
TESTING LABORATORIES
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549



                                    FORM 8-K

                                 CURRENT REPORT


                     Pursuant to Section 13 or 15(d) of the

                         Securities Exchange Act of 1934



                        Date of Report (Date of earliest
                         event reported) August 26, 1998


                           Barringer Technologies Inc.
             (Exact name of registrant as specified in its charter)



Delaware                          0-3207                       84-0720473
 (State of                 (Commission File Number)           (IRS Employer
incorporation)                                               Identification No.)


219 South Street, Murray Hill, New Jersey                          07974
(Address of principal executive offices)                        (Zip Code)


                                 (908) 665-8200
                         (Registrant's telephone number,
                              including area code)

                                 Not Applicable
          (Former name or former address, if changed since last report)



<PAGE>



Items 1-4. Not Applicable.

Item 5.   Other Events.

          On August 26, 1998,  the Board of Directors of Barringer  Technologies
Inc.,  a Delaware  corporation  (the  "Company"),  declared  a dividend  payable
September 9, 1998 of one right (a "Right") for each outstanding  share of common
stock, par value $.01 per share ("Common Stock"),  of the Company held of record
at the close of business on  September 8, 1998 (the  "Record  Time"),  or issued
thereafter  and  prior to the  Separation  Time  (as  hereinafter  defined)  and
thereafter  pursuant to options and  convertible  securities  outstanding at the
Separation Time. The Rights will be issued pursuant to a Stockholder  Protection
Rights Agreement, dated as of August 26, 1998 (the "Rights Agreement"),  between
the Company and American Stock  Transfer & Trust  Company,  as Rights Agent (the
"Rights Agent").  Each Right entitles its registered holder to purchase from the
Company,   after  the  Separation   Time,  one   one-hundredth  of  a  share  of
Participating  Preferred  Stock,  par  value  $2.00  per  share  ("Participating
Preferred Stock"), for $32.50 (the "Exercise Price"), subject to adjustment.

          The Rights will be evidenced by the Common  Stock  certificates  until
the close of business on the earlier of (either,  the "Separation Time") (i) the
tenth  business day (or such later date as the Board of Directors of the Company
may from time to time fix by  resolution  adopted prior to the  Separation  Time
that  would  otherwise  have  occurred)  after the date on which any  Person (as
defined in the Rights Agreement)  commences a tender or exchange offer which, if
consummated,  would result in such  Person's  becoming an Acquiring  Person,  as
defined  below,  and (ii) the  first  date or such  later  date as the  Board of
Directors of Barringer Technologies Inc. may from time to time fix (the "Flip-in
Date") of public  announcement by the Company or any Person that such Person has
become an  Acquiring  Person (the date of such public  announcement  being,  the
"Stock  Acquisition  Date");  provided  that  if the  foregoing  results  in the
Separation Time being prior to the Record Time, the Separation Time shall be the
Record Time; and provided further that if a tender or exchange offer referred to
in clause (i) is  cancelled,  terminated  or  otherwise  withdrawn  prior to the
Separation  Time without the purchase of any shares of stock  pursuant  thereto,
such offer shall be deemed never to have been made.  An Acquiring  Person is any
Person having  Beneficial  Ownership (as defined in the Rights Agreement) of 15%
or more of the outstanding  shares of Common Stock, which term shall not include
(i) the  Company,  any  wholly-owned  subsidiary  of the Company or any employee
stock ownership or other employee  benefit plan of the Company,  (ii) any person
who is the Beneficial Owner of 15% or more of the outstanding Common Stock as of
the date of the Rights Agreement or who shall become the Beneficial Owner of 15%
or more of the outstanding  Common Stock solely as a result of an acquisition of
Common Stock by the Company,  until such time as such Person acquires additional
Common Stock, other than through a dividend or stock split, (iii) any Person who
becomes the  Beneficial  Owner of 15% or more of the  outstanding  Common  Stock
without  any plan or intent to seek or affect  control  of the  Company  if such
Person  promptly  divests  sufficient  securities  such that such 15% or greater
Beneficial  Ownership ceases or (iv) any Person who Beneficially  Owns shares of
Common Stock consisting  solely of (A) shares acquired  pursuant to the grant or
exercise of an option granted by the Company in connection  with an agreement to
merge with, or acquire,  the Company entered into prior to the Flip-in Date, (B)
shares owned by such Person and its  Affiliates  and  Associates  at the time of
such grant and (C) shares,  amounting to less than 1% of the outstanding  Common
Stock,  acquired by Affiliates  and  Associates of such Person after the time of
such grant. The Rights  Agreement  provides that, until the Separation Time, the
Rights will be  transferred  with and only with the Common  Stock.  Common Stock
certificates issued after the Record Time but prior to the Separation Time shall
evidence one Right for each share of Common Stock represented  thereby and shall
contain a legend  incorporating  by reference the terms of the Rights  Agreement
(as such may be amended from time to time).  Notwithstanding  the absence of the
aforementioned   legend,   certificates   evidencing   shares  of  Common  Stock
outstanding  at the Record Time shall also  evidence one Right for each share of
Common Stock evidenced thereby. Promptly following the Separation Time, separate
certificates  evidencing the Rights  ("Rights  Certificates")  will be mailed to
holders of record of Common Stock at the Separation Time.

          The Rights will not be exercisable  until the Business Day (as defined
in the Rights  Agreement)  following the Separation Time. The Rights will expire
on the earliest of (i) the Exchange Time (as defined  below),  (ii) the close of
business on September  8, 2008,  (iii) the date on which the Rights are redeemed
as  described  below  and (iv)  upon the  merger  of the  Company  into  another
corporation  pursuant to an agreement  entered into prior to a Stock Acquisition
Date (in any such case, the "Expiration Time").

          The Exercise Price and the number of Rights outstanding, or in certain
circumstances  the  securities  purchasable  upon  exercise of the  Rights,  are
subject to  adjustment  from time to time to prevent  dilution in the event of a
Common  Stock  dividend on, or a  subdivision  or a  combination  into a smaller
number of shares of,  Common  Stock,  or the  issuance  or  distribution  of any
securities or assets in respect of, in lieu of or in exchange for Common Stock.

          In the event that prior to the Expiration  Time a Flip-in Date occurs,
the Company  shall take such action as shall be  necessary to ensure and provide
that each Right (other than Rights Beneficially Owned by the Acquiring Person or
any  affiliate  or  associate  thereof,  which  Rights  shall become void) shall
constitute the right to purchase from the Company,  upon the exercise thereof in
accordance  with the terms of the  Rights  Agreement,  that  number of shares of
Common Stock of the Company having an aggregate  Market Price (as defined in the
Rights  Agreement),  on the Stock Acquisition Date that gave rise to the Flip-in
Date,  equal to twice the Exercise Price for an amount in cash equal to the then
current Exercise Price. In addition,  the Board of Directors of the Company may,
at its  option,  at any time after a Flip-in  Date and prior to the time that an
Acquiring  Person  becomes  the  Beneficial  Owner  of  more  than  50%  of  the
outstanding  shares of Common  Stock,  elect to exchange  all (but not less than
all) the then outstanding  Rights (other than Rights  Beneficially  Owned by the
Acquiring  Person or any  affiliate or associate  thereof,  which Rights  become
void) for  shares of Common  Stock at an  exchange  ratio of one share of Common
Stock per Right,  appropriately  adjusted  to  reflect  any stock  split,  stock
dividend or similar transaction  occurring after the date of the Separation Time
(the "Exchange  Ratio").  Immediately upon such action by the Board of Directors
(the "Exchange Time"),  the right to exercise the Rights will terminate and each
Right will thereafter  represent only the right to receive a number of shares of
Common Stock equal to the Exchange Ratio.

          Whenever  the Company  shall  become  obligated,  as  described in the
preceding  paragraph,  to issue  shares of Common  Stock upon  exercise of or in
exchange for Rights, the Company,  at its option, may substitute therefor shares
of Participating  Preferred Stock, at a ratio of one one-hundredth of a share of
Participating Preferred Stock for each share of Common Stock so issuable.

          In the event  that prior to the  Expiration  Time the  Company  enters
into,  consummates or permits to occur a transaction  or series of  transactions
after  the time an  Acquiring  Person  has  become  such in which,  directly  or
indirectly,  (i) the Company  shall  consolidate  or merge or  participate  in a
binding  share   exchange  with  any  other  Person  if,  at  the  time  of  the
consolidation,  merger or share  exchange or at the time the Company enters into
an agreement with respect to such consolidation,  merger or share exchange,  the
Acquiring Person controls the Board of Directors of the Company and (A) any term
of or  arrangement  concerning  the treatment of shares of capital stock in such
merger,  consolidation or share exchange relating to the Acquiring Person is not
identical  to the terms and  arrangements  relating  to other  holders of Common
Stock or (B) the Person  with whom such  transaction  or series of  transactions
occurs is the Acquiring Person or an Affiliate or Associate  thereof or (ii) the
Company  shall sell or otherwise  transfer  (or one or more of its  subsidiaries
shall sell or otherwise  transfer)  assets (A) aggregating  more than 50% of the
assets  (measured by either book value or fair market  value) or (B)  generating
more than 50% of the  operating  income or cash  flow,  of the  Company  and its
subsidiaries  (taken as a whole) to any other Person  (other than the Company or
one or more of its wholly  owned  subsidiaries)  or to two or more such  Persons
which are  affiliated  or otherwise  acting in concert,  if, at the time of such
sale or transfer  of assets or at the time the Company (or any such  subsidiary)
enters into an agreement  with respect to such sale or transfer,  the  Acquiring
Person controls the Board of Directors of the Company (a "Flip-over  Transaction
or Event"),  the Company shall take such action as shall be necessary to ensure,
and  shall  not  enter  into,  consummate  or  permit  to occur  such  Flip-over
Transaction or Event until it shall have entered into a  supplemental  agreement
with the Person  engaging in such  Flip-over  Transaction or Event or the parent
corporation thereof (the "Flip-over Entity"),  for the benefit of the holders of
the Rights,  providing,  that upon  consummation  or occurrence of the Flip-over
Transaction  or Event (i) each Right shall  thereafter  constitute  the right to
purchase from the Flip-over Entity, upon exercise thereof in accordance with the
terms of the  Rights  Agreement,  that  number of shares of common  stock of the
Flip-over Entity having an aggregate Market Price on the date of consummation or
occurrence of such  Flip-over  Transaction  or Event equal to twice the Exercise
Price for an amount in cash equal to the then  current  Exercise  Price and (ii)
the Flip-over Entity shall thereafter be liable for, and shall assume, by virtue
of such Flip-over Transaction or Event and such supplemental agreement,  all the
obligations  and duties of the  Company  pursuant to the Rights  Agreement.  For
purposes of the foregoing description, the term "Acquiring Person" shall include
any Acquiring  Person and its Affiliates and  Associates  counted  together as a
single Person.

          The Board of Directors of the Company may, at its option,  at any time
prior  to the  Flip-in  Date,  redeem  all  (but  not  less  than  all) the then
outstanding  Rights at a price of $.01 per Right) (the "Redemption  Price"),  as
provided in the Rights  Agreement.  Immediately  upon the action of the Board of
Directors  of the Company  electing  to redeem the  Rights,  without any further
action and without any notice,  the right to exercise the Rights will  terminate
and each  Right  will  thereafter  represent  only  the  right  to  receive  the
Redemption Price in cash for each Right so held.

          The holders of Rights  will,  solely by reason of their  ownership  of
Rights,  have no rights  as  stockholders  of the  Company,  including,  without
limitation, the right to vote or to receive dividends.

          The Rights will not prevent a takeover of the  Company.  However,  the
Rights may cause substantial  dilution to a person or group that acquires 15% or
more of the Common  Stock  unless the Rights are first  redeemed by the Board of
Directors of the Company.  Nevertheless,  the Rights should not interfere with a
transaction  that is in the best  interests of the Company and its  stockholders
because the Rights can be redeemed on or prior to the Flip-in  Date,  before the
consummation of such transaction.

          As of August 15,  1998,  there were  7,815,297  shares of Common Stock
issued (of which 7,600,597  shares were outstanding and 214,700 shares were held
in treasury) and  1,640,037  shares  reserved for issuance  pursuant to employee
benefit plans warrants,  and convertible  securities.  As long as the Rights are
attached to the Common  Stock,  the  Company  will issue one Right with each new
share of Common Stock so that all such shares will have Rights attached.

          The Rights  Agreement (which includes as Exhibit A the forms of Rights
Certificate and Election to Exercise and as Exhibit B the form of Certificate of
Designation and Terms of the  Participating  Preferred Stock) is attached hereto
as an exhibit and is incorporated herein by reference. The foregoing description
of the Rights is qualified in its entirety by reference to the Rights  Agreement
and such exhibits thereto.

          In connection with the adoption of the Rights Agreement,  the Board of
Directors  of the Company  also  amended  certain  provisions  of the  Company's
Amended and Restated  By-laws.  Among other things,  special meetings of Company
stockholders  now may only be called by the  Chairman  of the  Board,  the Chief
Executive  Officer or by a majority of the Board of Directors,  and stockholders
will be  required  to  provide  advance  notice  of any  proposals  or  director
nominations to be made at annual and special meetings of stockholders.

Item 6.   Not Applicable.

Item 7.   Exhibits.

     3.1  By-laws of the Company, as  amended and restated, effective August 26,
          1998.

     4.1  Rights  Agreement,  which  includes  as  Exhibit A the forms of Rights
          Certificate  and  Election  to  Exercise  and as Exhibit B the form of
          Certificate of Designation  and Terms of the  Participating  Preferred
          Stock.

     99.1 Press release, dated August 26, 1998, issued by the Company.



<PAGE>


                                    SIGNATURE



          Pursuant to the  requirements of the Securities  Exchange Act of 1934,
the  registrant  has duly  caused  this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                             BARRINGER TECHNOLOGIES INC.



                                             By:    /s/Stanley S. Binder
                                             Name:  Stanley S. Binder
                                             Title: Chairman of the Board and
                                                    Chief Executive Officer


Date:  September 2, 1998


<PAGE>


                                  EXHIBIT INDEX

                                                                   Sequentially
Exhibit No.                Description                             Numbered Page

          3.1  By-laws of Barringer Technologies, Inc.
               (the "Company"), as amended and restated,
               effective August 26, 1998.

          4.1  Stockholder Protection Rights Agreement,
               dated as of August 26, 1998 (the "Rights
               Agreement"),   between the  Company  and
               American Stock Transfer & Trust Company,
               as Rights Agent,  including as Exhibit A
               the forms of Rights  Certificate  and of
               Election  to  Exercise  and as Exhibit B
               the form of  Certificate  of Designation
               and Terms of the Participating Preferred
               Stock of the Company.

          99.1 Press release, dated August 26, 1998, 
               issued by the Company.




                          AMENDED AND RESTATED BY-LAWS

                                       OF

                           BARRINGER TECHNOLOGIES INC.

                           (Effective August 26, 1998)


                                     OFFICES

          Section  1.1.   Registered   Office.  The  registered  office  of  the
Corporation shall be in the City of Wilmington,  County of New Castle,  State of
Delaware.

          Section 1.2. Other  Offices.  The  Corporation  may also establish and
maintain such other offices as the Board of Directors may from time to time deem
necessary or advisable or as the business of the Corporation may require.

                                  STOCKHOLDERS

          Section  2.1.  Place of  Meetings  of  Stockholders.  Meetings  of the
stockholders  shall be held at such place or places as may be fixed from time to
time by the Board of Directors and the Corporation.

          Section 2.2. Annual Meeting of Stockholders. The annual meeting of the
stockholders for the election of directors and for the transaction of such other
business as may  properly  come  before the meeting  shall be held on the second
Wednesday  of May of each  year,  if not a legal  holiday,  and if that day be a
legal holiday, then on the next business day following;  provided, however, that
the annual  meeting may be held on such other day as determined by resolution of
the Board of Directors, as stated in the notice of the meeting.

          Section 2.3.  Notice of the Annual  Meeting of  Stockholders.  Written
notice of the annual  meeting  stating  the place,  date and hour of the meeting
shall be given to each  stockholder  entitled  to vote at such  meeting not less
than ten nor more than sixty days before the date of the meeting.

          Section 2.4. Special Meetings of Stockholders. Special meetings of the
stockholders,  for any purpose or purposes,  unless otherwise prescribed by law,
may be called by the Chairman of the Board of Directors (the  "Chairman") or the
Chief Executive Officer (the "Chief Executive Officer"),  and shall be called by
the Secretary at the request in writing of a majority of the Board of Directors.
Such request shall state the purpose or purposes of the proposed meeting.

          Section  2.5.  Notice of Special  Meetings  of  Stockholders.  Written
notice of a special meeting of stockholders  stating the place, date and hour of
the meeting and the purpose or purposes  for which the meeting is called,  shall
be given not less  than ten nor more  than  sixty  days  before  the date of the
meeting, to each stockholder entitled to vote as such meeting.

          Section 2.6.  Fixing  Record Date.  The Board of Directors may fix, in
advance,  a  date  as the  record  date  for  the  purpose  of  determining  the
stockholders  entitled to notice of or to vote at any meeting of stockholders or
any  adjournment   thereof,  or  for  the  payment  of  any  dividend  or  other
distribution or allotment of any rights, or to exercise any rights in respect of
any change,  conversion  or  exchange of stock,  or for the purpose of any other
lawful  action,  which  record  date shall not  precede  the date upon which the
resolution  fixing the record date is adopted and which record date shall not be
more than sixty or less than ten days before the date of such  meeting,  or more
than sixty days prior to any other lawful action.

          Section 2.7. List of  Stockholders  Entitled to Vote.  The officer who
has charge of the stock ledger of the  Corporation  shall  prepare and make,  at
least ten days before  every  meeting of  stockholders,  a complete  list of the
stockholders  entitled to vote at the meeting,  arranged in alphabetical  order,
and  showing  the  address of each  stockholder.  Such list shall be open to the
examination of any stockholder,  for any purpose germane to the meeting,  during
ordinary business hours, for a period of at least ten days prior to the meeting,
either at a place within the city where the meeting is to be held, or, if not so
specified,  at the place where the meeting is to be held. The list shall also be
produced  and kept at the time and place of the  meeting  during  the whole time
thereof, and may be inspected by any stockholder who is present.

          Section  2.8.  Quorum;  Adjourned  Meetings.  The holders of shares of
stock  having a majority of the votes  entitled to be cast by the holders of all
issued and outstanding shares of stock entitled to vote at the meeting,  present
in person or represented by proxy,  shall constitute a quorum at all meetings of
the stockholders for the transaction of business except as otherwise provided by
statute or by the Certificate of Incorporation.  If, however,  such quorum shall
not  be  present  or  represented  at  any  meeting  of  the  stockholders,  the
stockholders  entitled  to vote  thereat,  present in person or  represented  by
proxy,  shall have the power to adjourn the meeting  from time to time,  without
notice other than  announcement at the meeting,  until a quorum shall be present
or represented.  At such adjourned meeting at which a quorum shall be present or
represented,  any business may be transacted which might have been transacted at
the meeting as originally  notified.  If the adjournment is for more than thirty
days,  or if after the  adjournment a new record date is fixed for the adjourned
meeting, a notice of the adjourned meeting shall be given to each stockholder of
record entitled to vote at the meeting.

          Section  2.9.  Vote  Required to Act.  When a quorum is present at any
meeting,  the vote of the holders of a majority of the voting  power  present in
person or  represented  by proxy shall decide any question  brought  before such
meeting,  unless the  question  is one upon which by  express  provision  of the
statutes or of the Certificate of Incorporation, a different vote is required in
which case such express  provision shall govern and control the decision of such
question;  provided,  however,  that at all  meetings  of  stockholders  for the
election  of  directors  a plurality  of the votes cast shall be  sufficient  to
elect.

          Section  2.10.  Voting  Rights of  Stockholders;  Proxies.  Unless the
Certificate of Incorporation of the Corporation  shall provide  otherwise,  each
stockholder  shall at every meeting of the  stockholders be entitled to one vote
in person or by proxy for each share of the capital  stock  having  voting power
held by such  stockholder.  Each stockholder  entitled to vote at any meeting of
stockholders  or to express  consent or dissent  without a meeting may authorize
another  person or person to act for him or her by proxy,  but no proxy shall be
voted after three years from its date,  unless the proxy  provides  for a longer
period. Without limiting the manner in which a stockholder may authorize another
person or persons to act for him or her as proxy,  a  stockholder  may execute a
writing  authorizing  another  person or persons to act for him or her as proxy.
Execution  may be  accomplished  by  the  stockholder  or his or her  authorized
officer, director,  employee or agent signing such writing or causing his or her
signature to be affixed to such writing by any reasonable means  including,  but
not limited to, by facsimile signature, and shall be filed with the Secretary of
the Corporation.

          Section 2.11. Action Without Meeting.  Any action required to be taken
at any annual or special  meeting of  stockholders  of the  Corporation,  or any
action which may be taken at any annual or special meeting of such stockholders,
may be taken  without a meeting,  without  prior notice and without a vote, if a
consent in writing,  setting  forth the action so taken,  shall be signed by the
holders of  outstanding  stock having not less than the minimum  number of votes
that would be  necessary  to authorize or take such action at a meeting at which
all shares entitled to vote thereon were present and voted. Prompt notice of the
taking of the corporate action without a meeting by less than unanimous  written
consent shall be given to those stockholders who have not consented in writing.

          Section  2.12.  Inspectors  at  Stockholders'  Meeting.  The  Board of
Directors,  in advance of any meeting of  stockholders,  may appoint one or more
inspectors to act at the meeting or any adjournment  thereof.  If inspectors are
not  so  appointed,  the  presiding  officer  may,  and on  the  request  of any
stockholder entitled to vote thereat shall, appoint one or more inspectors. Each
inspector,  before entering upon the discharge of his or her duties,  shall take
and sign an oath  faithfully  to execute the duties of inspector at such meeting
with strict impartiality and according to the best of his or her ability.

          Section 2.13. Advance Notice of Stockholder  Proposals.  At any annual
or special  meeting of  stockholders,  proposals  by  stockholders  and  persons
nominated for election as directors by stockholders  shall be considered only if
advance  notice  thereof  has been  timely  given as  provided  herein  and such
proposals or nominations are otherwise proper for consideration under applicable
law and the certificate of incorporation and by-laws of the Corporation.  Notice
of any proposal to be presented by any  stockholder or of the name of any person
to be nominated by any stockholder for election as a director of the Corporation
at any  meeting of  stockholders  shall be  delivered  to the  Secretary  of the
Corporation at its principal  executive office not less than 60 nor more than 90
days prior to the date of the meeting;  provided,  however,  that if the date of
the meeting is first  publicly  announced  or disclosed  (in a public  filing or
otherwise)  less than 70 days  prior to the date of the  meeting,  such  advance
notice  shall be given  not more  than  ten  days  after  such  date is first so
announced or  disclosed.  Public  notice shall be deemed to have been given more
than 70 days in  advance of the annual  meeting  if the  Corporation  shall have
previously disclosed, in these by-laws or otherwise,  that the annual meeting in
each  year is to be held on a  determinable  date,  unless  and  until the Board
determines to hold the meeting on a different  date. Any  stockholder  who gives
notice of any such proposal shall deliver  therewith the text of the proposal to
be presented and a brief written  statement of the reasons why such  stockholder
favors the proposal and setting forth such stockholder's  name and address,  the
number  and  class of all  shares  of each  class  of  stock of the  Corporation
beneficially  owned  by such  stockholder  and  any  material  interest  of such
stockholder  in the  proposal  (other than as a  stockholder).  Any  stockholder
desiring to nominate  any person for  election as a director of the  Corporation
shall deliver with such notice a statement in writing  setting forth the name of
the person to be nominated,  the number and class of all shares of each class of
stock of the  Corporation  beneficially  owned by such person,  the  information
regarding  such person  required by  paragraphs  (a), (e) and (f) of Item 401 of
Regulation  S-K  adopted  by the  Securities  and  Exchange  Commission  (or the
corresponding   provisions  of  any  regulation   subsequently  adopted  by  the
Securities and Exchange Commission applicable to the Corporation), such person's
signed  consent to serve as a  director  of the  Corporation  if  elected,  such
stockholder's  name and  address  and the number and class of all shares of each
class of stock of the Corporation  beneficially  owned by such  stockholder.  As
used herein,  shares "beneficially owned" shall mean all shares as to which such
person,  together with such person's  affiliates  and  associates (as defined in
Rule  12b-2  under  the  Securities  Exchange  Act of  1934),  may be  deemed to
beneficially own pursuant to Rules 13d-3 and 13d-5 under the Securities Exchange
Act of 1934,  as well as all shares as to which such person,  together with such
person's affiliates and associates, has the right to become the beneficial owner
pursuant to any  agreement or  understanding,  or upon the exercise of warrants,
options or rights to convert or exchange  (whether  such rights are  exercisable
immediately or only after the passage of time or the occurrence of  conditions).
The  person  presiding  at  the  meeting,   in  addition  to  making  any  other
determinations  that may be  appropriate  to the conduct of the  meeting,  shall
determine  whether  such  notice  has been  duly  given and  shall  direct  that
proposals and nominees not be considered if such notice has not been given.

                                    DIRECTORS

          Section  3.1.  Powers of the Board of  Directors.  The business of the
Corporation  shall be managed by its Board of  Directors  which may exercise all
such powers of the Corporation and do all such lawful acts and things as are not
be statute or by the Certificate of  Incorporation  or by these By-laws directed
or required to be exercised or done by the stockholders.

          Section 3.2. Number, Election,  Tenure and Qualification of Directors.
The number of  directors  which shall  constitute  the whole Board of  Directors
shall be not less  than  three nor more  than  nine.  Within  the  limits  above
specified,  the number of directors  shall be  determined  by  resolution of the
Board of Directors at any meeting.  The directors shall be elected at the annual
meeting of the stockholders, except as provided in Section 3.3 of these By-laws,
and each  director  elected  shall hold office  until a successor is elected and
qualified.  Directors need not be stockholders.

          Section 3.3. Newly Created Directorships and Vacancies.  Vacancies and
newly created directorships resulting from any increase in the authorized number
of directors may be filled by a majority of the directors then in office, though
less than a quorum, or by a sole remaining director, and the directors so chosen
shall hold office until the next annual election and until their  successors are
duly  elected  and  shall  qualify,  unless  sooner  displaced.  If there are no
directors  in office,  then an election of  directors  may be held in the manner
provided by statute. If, at the time of filling any vacancy or any newly created
directorship, the directors then in office shall constitute less than a majority
of the whole Board of Directors (as  constituted  immediately  prior to any such
increase),  the Court of Chancery may, upon  application  of any  stockholder or
stockholders  holding at least ten percent of the total  number of the shares at
the time  outstanding  having  the right to vote for such  directors,  summarily
order  an  election  to be held to fill  any such  vacancies  or  newly  created
directorships,  or to replace  the  directors  chosen by the  directors  then in
office.

          Section  3.4.  Resignations.  Any  director  may resign at any time by
giving  written  notice  to the  Secretary.  A  resignation  from  the  Board of
Directors  shall be deemed to take  effect  upon its  receipt by the  Secretary,
unless otherwise specified therein.

          Section 3.5.  Place and Time of Meetings of the Board of Directors.  A
regular  meeting  of  each  newly  elected  Board  of  Directors  shall  be held
immediately  following the Annual  Meeting of  stockholders  and at the place of
such meeting,  or as soon as practicable  thereafter at such place as shall have
been previously  fixed for that purpose by resolution of the Board of Directors.
Other  regular  meetings by the Board of Directors may be held at such times and
places  as the  Board of  Directors  may from  time to time  determine.  Special
meetings of the Board of Directors shall be held whenever called by order of the
Board of  Directors  or by the Chief  Executive  Officer,  the  President or the
Secretary at the written  request of any three  directors,  and at such place or
places as may be fixed by the Board of Directors or  designated in the notice of
such meeting.

          Section 3.6.  Notice of Meetings of the Board of Directors.  Notice of
regular meetings of the Board of Directors need not be given. Notice of the time
and place of every special  meeting of the Board of Directors  shall be given at
least two days before the  meeting.  Except as  otherwise  provided by law or by
these  By-laws,  any  notice of  meeting  need not  specify  the  purpose of the
meeting.

          Section  3.7  Quorum.  At all  meetings  of the Board of  Directors  a
majority of the total  number of  directors  shall  constitute  a quorum for the
transaction  of business and the act of a majority of the  directors  present at
any  meeting  at  which  there  is a  quorum  shall  be the act of the  Board of
Directors, except as may otherwise be specifically provided by statute or by the
Certificate of Incorporation. If a quorum shall not be present at any meeting of
the Board of Directors,  the directors  present  thereat may adjourn the meeting
from time to time, without notice other than announcement at the meeting,  until
a quorum shall be present.

          Section 3.8. Action Without Meeting.  Unless  otherwise  restricted by
the  Certificate  of  Incorporation  or these  By-laws,  any action  required or
permitted  to be taken  at any  meeting  of the  Board  of  Directors  or of any
committee thereof may be taken without a meeting, if all members of the Board of
Directors or committee,  as the case may be, consent thereto in writing, and the
writing or writings  are filed with the minutes of  proceedings  of the Board of
Directors or committee.

          Section 3.9. Compensation and Reimbursement of Directors. The Board of
Directors  may fix the  compensation  of directors for services in any capacity,
and may allow  directors a fixed sum and  expenses of  attendance,  if any,  for
attendance at each  directors'  meeting.  Members of  committees  may be allowed
similar  compensation  and  reimbursement  for their  services as such.  No such
payment  shall  preclude  any  director or  committee  member  from  serving the
Corporation in any other capacity and receiving compensation therefore.

          Section 3.10.  Interest  Directors.  No contract or other  transaction
between the Corporation and one or more of its directors,  officers,  or between
the Corporation  and any other  corporation,  partnership,  association or other
organization  in which one or more of its directors or officers are directors or
officers,  or have a financial  interest,  shall be void or voidable  solely for
this  reason,  or solely  because  such  director  or  officer  is present at or
participates in the meeting of the Board of Directors or committee thereof which
authorizes  such contract or  transaction,  or solely  because his, her or their
votes are counted for such purposes, if:

         (1) the material facts as to his or her relationship or interest and as
         to the contract or transaction  are disclosed or are known to the Board
         of Directors or the committee,  and the Board of Directors or committee
         in good faith authorizes the contract or transaction by the affirmative
         votes of a majority  of the  disinterested  directors,  even though the
         disinterested directors be less than a quorum; or

         (2) the material facts as to his or her relationship or interest and as
         to the  contract  or  transaction  are  disclosed  or are  known to the
         stockholders  entitled to vote thereon, and the contract or transaction
         is specifically approved in good faith by vote of the stockholders; or

         (3) the contract or transaction is fair as to the Corporation as of the
         time it is authorized,  approved or ratified by the Board of Directors,
         a  committee  thereof,  or  the  stockholders.   Common  or  interested
         directors may be counted in  determining  the presence of a quorum at a
         meeting of the Board of  Directors  which  authorizes  the  contract or
         transaction.

          Section 3.11.  Executive  Committee.  The Board of Directors may, from
time to  time,  by  resolution  passed  by a  majority  of the  whole  Board  of
Directors,  designate an Executive Committee consisting of two or more directors
of the Corporation.  The Executive  Committee shall have and exercise all of the
powers of the Board of Directors in the  management  of the business and affairs
of the Corporation,  and may authorize the seal of the Corporation to be affixed
to all papers which may require it. Such  Committee  shall serve at the pleasure
of the Board of Directors,  which shall have the power at any time to change the
members thereof, to fill vacancies therein and to discharge such Committee, with
or without cause.

          Section 3.12. Other Committees.  The Board of Directors may, from time
to time,  by  resolution  passed by a majority of the whole Board of  Directors,
establish one or more  committees of the Board of Directors,  having such powers
and   responsibilities,   and  consisting  of  two  or  more  directors  of  the
Corporation,  as the  Board  of  Directors  shall  designate.  Any and all  such
committees  shall serve at the pleasure of the Board of  Directors,  which shall
have the power at any time to change  the  members  thereof,  to fill  vacancies
therein and to discharge any such committee, with or without cause.

          Section 3.13. Organization. At all meetings of the Board of Directors,
the Chairman,  or in the Chairman's  absence,  the Vice-Chairman of the Board of
Directors (the "Vice Chairman"),  or in the Vice Chairman's  absence,  the Chief
Executive Officer, or in the Chief Executive  Officer's absence,  the President,
or in the  President's  absence,  a  chairman  chosen  by the  directors,  shall
preside.

          Section 3.14.  Chairman of the Board of Directors.  The Chairman shall
preside at all meetings of the Board of Directors and of the stockholders  where
present;  and in general  shall  perform all duties as may be  prescribed by the
Board of Directors from time to time.

          Section 3.15. Vice Chairman of the Board of Directors.  In the absence
of the Chairman or in the event of the Chairman's death or inability to act, the
Vice  Chairman  shall  perform the duties of the  Chairman,  and when so acting,
shall have all the authority of and be subject to all the restrictions  upon the
Chairman. The Vice Chairman shall perform such other duties as from time to time
may be prescribed by the Chairman or by the Board of Directors.

                                    OFFICERS

          Section 4.1.  Authorized  Officers.  The  officers of the  Corporation
shall be a Chief Executive Officer, a President,  one or more Vice Presidents, a
Treasurer and a Secretary. One person may hold more than one office.

          Section 4.2. Election or Appointment and Term of Office.  The officers
of the  corporation,  other than  subordinate  or assistant  officers,  shall be
elected or appointed  annually by the Board of  Directors  at its first  meeting
held after each Annual Meeting of Stockholders.  The Board of Directors may from
time to time appoint such  subordinate or assistant  officers,  with such powers
and duties,  as it may deem  desirable,  and may from time to time authorize any
officer to  appoint  and remove  such  subordinate  or  assistant  officers  and
prescribe  their powers and duties.  Each officer shall hold office until his or
her successor has been elected or appointed and qualified or until the office is
declared  vacant by the Board of  Directors,  unless he or she shall sooner die,
resign or be removed as hereinafter provided.

          Section  4.3.  Removal.  Any  officer  of the  Corporation  elected or
appointed  by  the  Board  of  Directors  may be  removed  at  any  time  by the
affirmative vote of a majority of the Board of Directors . Any vacancy occurring
in any office of the Corporation shall be filled by the Board of Directors.

          Section 4.4. Resignation. Any officer may resign at any time by giving
written  notice  to the  Chief  Executive  Officer  or the  Secretary.  Any such
resignation  shall  take  effect  at the  time  specified  therein,  and  unless
otherwise  specified  therein,  the acceptance of such resignation  shall not be
necessary to make it effective.

          Section 4.5. Security.  The Board of Directors may require any officer
to give  security  for  the  faithful  performance  of his or her  duties.  Such
security  may be in the  form of a bond in such  form and with  such  surety  or
sureties as the Board of Directors may approve.

          Section 4.6. Compensation.  The Board of Directors shall have power to
fix the  compensation of all officers of the  Corporation.  It may authorize any
officers upon whom the power of appointing subordinate or assistant officers may
have been  conferred to fix the  compensation  of such  subordinate or assistant
officers.

          Section 4.7. Chief Executive  Officer.  The Chief  Executive  Officer,
subject to the control of the Board of Directors  shall have general  charge and
supervision  over  and  responsibility  for  the  business  and  affairs  of the
Corporation and corporate development,  expansion and contraction and long-range
planning of the Corporation,  including,  without  limitation,  the acquisition,
development and disposition of facilities  necessary to implement the foregoing;
and shall have the authority to instruct,  direct, and control the Corporation's
other officers, employees and agents. The Chief Executive Officer may sign, with
the  Secretary  or  any  other  proper  officer  of  the  Corporation  thereunto
authorized by the Board of Directors,  certificates  representing  shares of the
Corporation,  and deeds, mortgages, bonds, contracts, or other instruments which
the Board of Directors has authorized to be executed,  except in cases where the
signing and  execution  thereof  shall be  expressly  delegated  by the Board of
Directors or by these By-laws to some other officer or agent of the Corporation,
or shall be required by law to be otherwise  signed or executed;  and in general
shall perform all duties incident to the office of chief executive  officer of a
corporation,  and  such  other  duties  as may be  prescribed  by the  Board  of
Directors or the Chairman from time to time.

          Section 4.8  President.  The  President  shall be the chief  operating
officer of the Corporation and, subject to the control of the Board of Directors
shall have  general and active  management  of the  business  and affairs of the
Corporation  and  shall  see that all  orders  and  resolutions  of the Board of
Directors are carried into effect. The President may sign, with the Secretary or
any other proper officer of the Corporation thereunto authorized by the Board of
Directors,  certificates  representing  shares of the  Corporation,  and  deeds,
mortgages,  bonds,  contracts, or other instruments which the Board of Directors
has  authorized to be executed,  except in cases where the signing and execution
thereof  shall be  expressly  delegated  by the Board of  Directors  or by these
By-laws to some other officer or agent of the Corporation,  or shall be required
by law to be otherwise  signed or  executed;  and in general  shall  perform all
duties as may be  prescribed by the Board of Directors or the Chairman from time
to time.

          Section 4.9. Vice  Presidents.  In the absence of the Chief  Executive
Officer or the  President or in the event of the Chief  Executive  Officer's and
the  President's  death or inability to act, the Vice President (or in the event
there  be more  than one  Vice  President,  the  Vice  Presidents  in the  order
designated at the time of their election,  or in the absence of any designation,
then in the order of their  seniority)  shall  perform  the  duties of the Chief
Executive Officer and/or the President,  and when so acting,  shall have all the
authority  of and be subject to all the  restrictions  upon the Chief  Executive
Officer and/or the President. Any Vice President may sign, with the Secretary or
any other proper officer of the Corporation thereunto authorized by the Board of
Directors,  certificates  representing  shares  of the  Corporation;  and  shall
perform  such other duties as from time to time may be  prescribed  by the Chief
Executive Officer, the President or by the Board of Directors.

          Section 4.10.  Secretary.  The Secretary shall keep the minutes of the
meetings of the  stockholders,  of the Board of Directors  and of the  Executive
Committee in books  provided for the purpose.  The Secretary  shall see that all
notices are duly given in accordance  with the provisions of these By-laws or as
required by law and shall be custodian of the corporate  records and of the seal
of the  Corporation.  The Secretary shall see that the corporate seal is affixed
to all documents,  the execution of which on behalf of the corporation under its
seal is duly  authorized,  and when so affixed may attest the same.  In general,
the Secretary shall perform all duties incident to the office of Secretary,  and
such other duties as from time to time may be prescribed by the Chief  Executive
Officer, the President or by the Board of Directors.

          Section 4.11.  Treasurer.  The  Treasurer  shall have charge of and be
responsible  for  all  funds,  securities,  receipts  and  disbursements  of the
Corporation  and  shall  deposit  or  cause to be  deposited  in the name of the
Corporation all moneys or other valuable effects in such banks,  trust companies
or other  depositories  as shall from time to time be designated by the Board of
Directors. The Treasurer shall have charge and custody of and be responsible for
the  keeping of correct  and  complete  books and  records of the account of the
Corporation  and shall  render to the Board of Directors  whenever  requested an
account of the financial condition of the Corporation.  In general the Treasurer
shall perform all the duties  incident to the office of Treasurer and such other
duties as may be prescribed by the Chief Executive Officer,  the President or by
the Board of Directors.

          Section 4.12.  Assistant  Secretaries  and Assistant  Treasurers.  The
Assistant  Secretary and Assistant  Treasurer or, if there be more than one, the
Assistant  Secretaries and Assistant  Treasurers in the order  determined by the
Board of Directors,  shall,  in the absence or inability of the Secretary or the
Treasurer,  perform the duties and exercise the powers of the  Secretary and the
Treasurer, respectively, and shall perform such other duties and have such other
powers as from time to time may be  assigned to them or any of them by the Chief
Executive Officer, the President or by the Board of Directors

                             SHARES AND STOCKHOLDERS

          Section 5.1.  Certificates.  Each  stockholder  shall be entitled to a
share  certificate  or  certificates  in a form to be  approved  by the Board of
Directors,  certifying  the number of shares owned by him or her,  signed by the
Chief Executive Officer,  the President or a Vice President and by the Treasurer
or an Assistant  Treasurer or the Secretary or an Assistant Secretary and sealed
with the seal of the Corporation or a facsimile thereof.

          Section  5.2.  Transfer of Shares.  Transfer of shares of stock of the
Corporation  shall be made only on the books of the  corporation  by the  holder
thereof or by duly authorized power of attorney duly executed and filed with the
Secretary of the  Corporation,  or its transfer agent, and upon the surrender of
the certificate  representing the shares to be transferred properly endorsed and
bearing the requisite amount of stock transfer stamps, if any, duly canceled. No
transfer  of shares of stock of the  Corporation  shall be valid as against  the
Corporation, its stockholders and creditors for any purpose, until it shall have
been entered in the stock books of the  corporation by an entry showing from and
to whom transferred.

          Section 5.3. Lost,  Mutilated or Destroyed  Certificates.  In case any
share  certificate is lost,  mutilated or destroyed,  the Board of Directors may
authorize the issuance of a new certificate in place thereof upon such terms and
conditions as it may deem advisable.

                                  DEPOSITORIES

          Section  6.  The  Board  of  Directors   may  designate  one  or  more
depositaries  for the funds of the  Corporation and shall determine what officer
or officers or other agents or  employees  shall be entitled to act on behalf of
the  Corporation   with  respect  to  accounts  of  the  Corporation  with  such
depositories.

                                   FISCAL YEAR

          Section  7. The fiscal  year of the  Corporation  shall be fixed,  and
shall be subject to change, by resolution of the Board of Directors.

                                      SEAL

         Section 8. The Board of Directors  shall provide a suitable seal having
inscribed  thereon  the name of the  Corporation,  the year 1967 and such  other
appropriate  legend  as may  from  time to time be  determined  by the  Board of
Directors.  If deemed  advisable by the Board of Directors,  a duplicate seal or
seals may be provided and kept for the necessary purposes of the Corporation.

                                     NOTICES

          Section 9.1.  Manner of Notice.  Whenever by law, the  Certificate  of
Incorporation  or these By-laws,  notice is required or permitted to be given to
any  stockholder,  director,  officer or member of a committee,  it shall not be
construed to require personal  notice,  but such notice may be given in writing,
by mail,  addressed  to such person at his or her address as the same appears on
the books of the  Corporation  or to such other  address as such person may have
designated  in a written  request  to the  Secretary  of the  Corporation,  with
postage prepaid thereon, and such notice shall be deemed to be given at the time
when the same shall be so deposited in the United States mail.

          Section  9.2.  Waiver of Notice to  Stockholders.  Notice of a meeting
need not be given to any  stockholder  who submits a signed  waiver of notice in
person or by proxy,  whether before or after the meeting.  The attendance of any
stockholder  at a  meeting,  in person or by proxy,  except  for the  purpose of
objecting at the beginning of the meeting to the lack of notice to such meeting,
shall constitute a waiver of notice by that stockholder.

          Section 9.3.  Waiver of Notice to Directors.  Notice of a meeting need
not be given to any  director  who  submits a signed  waiver  of notice  whether
before or after the meeting,  or who attends the meeting without  protesting the
lack of notice, either prior thereto or at its commencement.  A waiver of notice
need not specify  the purpose of any regular or special  meeting of the Board of
Directors.

          Section  9.4.  When Notice or Lapse of Time  Unnecessary.  Whenever by
law, the  Certificate  of  Incorporation  or these By-laws or by the term of any
agreement or instrument, the Corporation or the Board of Directors is authorized
to take any action  after  notice to any person or  persons,  such action may be
taken without notice if at any time before or after such action is completed the
person or persons  entitled to such notice or  entitled  to  participate  in the
action   to  be  taken  or,   in  the  case  of  a   stockholder,   his  or  her
attorney-in-fact, submit a signed waiver of notice of such requirements.

                                 INDEMNIFICATION

          Section 10.  Indemnification.  Every person (and the heirs,  executors
and administrators of such person) who is or was a director,  officer,  employee
or agent of the  Corporation,  or any other  company which such person serves or
served as such at the request of the  Corporation,  shall be  indemnified by the
Corporation  against  all  judgments,  payments  in  settlement  (whether or not
approved by court),  fines,  penalties and other  reasonable  costs and expenses
(including fees and  disbursements  of counsel) imposed upon or incurred by such
person in  connection  with or  resulting  from any  action,  suit,  proceeding,
investigation or claim, civil,  criminal,  administrative,  legislative or other
(including any criminal action, suit or proceeding in which such person enters a
plea of guilty or nolo  contendere or its  equivalent),  or any appeal  relating
thereto,  which  is  brought  or  threatened  either  by or in the  right of the
Corporation or such other company  (herein  called a "derivative  action") or by
any other person,  governmental  authority or  instrumentality  (herein called a
"third-party  action"),  and in which such person is made a part or is otherwise
involved by reason of being or having been such director,  officer,  employee or
agent or by  reason  of any  action  or  omission  by such  person in his or her
capacity as such director,  officer, employee or agent if either (a) such person
is wholly successful,  on the merits or otherwise,  in defending such derivative
or  third-party  action  or  (b)  in  the  judgment  of  a  court  of  competent
jurisdiction  or, in the absence of such a  determination,  in the judgment of a
majority of a quorum of the directors of the Corporation (which quorum shall not
include any director who is a party to or is otherwise  involved in such action)
or, in the absence of such a disinterested quorum, in the opinion of independent
legal counsel (i) in the case of a derivative action,  such person acted without
negligence  or  misconduct  in the  performance  of his  or  her  duties  to the
Corporation or such other company,  or (ii) in the case of a third-party action,
such person acted in good faith in what he or she reasonably  believed to be the
best interests of the Corporation or such other company and, in addition, in any
criminal action,  such person had no reasonable cause to believe that his or her
action was unlawful;  provided  that, in the case of a derivative  action,  such
indemnification  shall not be made in respect of any payment to the  Corporation
or such other company or any stockholder  thereof in satisfaction of judgment or
in settlement  unless either (x) a court of competent  jurisdiction has approved
such  settlement,  if any, and the  reimbursement  of such payment or (y) if the
court in which such action has been instituted lacks  jurisdiction to grant such
approval  or  such  action  is  settled  before  the   institution  of  judicial
proceedings,  in the  opinion  of  independent  legal  counsel,  the  applicable
standard of conduct  specified in this  sentence  has been met,  such action was
without merit,  such  settlement was in the best interests of the Corporation or
such other company and the  reimbursement  of such payment is permissible  under
applicable  law. In case such person is successful,  on the merits or otherwise,
in  defending  part of such  action or, in the  judgment of such a court or such
directors or in the opinion of such counsel,  has met the applicable standard of
conduct specified in the preceding sentence with respect to part of such action,
he or she  shall  be  indemnified  by the  Corporation  against  the  judgments,
settlement payments,  fines, penalties and other costs and expenses attributable
to such part of such action.

          The foregoing  rights of  indemnification  shall be in addition to any
rights to which any such director,  officer,  employee or agent may otherwise be
entitled under any agreement or vote of  stockholders  or at law or in equity or
otherwise,  including,  but not  limited to, any  indemnification  to which such
director,  officer,  employee or agent may now or  hereafter  be entitled  under
Section 145 of the General Corporation Law of the State of Delaware.

          In any  case  in  which,  in the  judgment  of a  majority  of  such a
disinterested quorum of the directors, any such director,  officer,  employee or
agent will be entitled to indemnification under the foregoing provisions of this
Article,  such amounts as they deem necessary to cover the reasonable  costs and
expenses  incurred  by  such  person  in  connection  with  the  action,   suit,
proceeding,  investigation  or claim prior to final  disposition  thereof may be
advanced to such person,  in the case of a director or officer,  upon receipt of
an  undertaking  by or on behalf of such  person to repay such  amounts if it is
ultimately  determined that he or she is not so entitled to indemnification  and
in the case of an employee or agent, upon such terms and conditions,  if any, as
the Board of Directors deems appropriate.

                              AMENDMENT AND REPEAL

          Section 11. Mode of Amendment or Appeal. These By-laws may be amended,
repealed  or new  By-laws  adopted,  by vote of the holders of a majority of the
stock having voting power or by the affirmative vote of a majority of the entire
Board of  Directors,  at any  meeting  duly called and held at which a quorum is
present. Any By-law adopted by the Board of Directors may be amended or repealed
by the stockholders entitled to vote thereon as herein provided.



                                  EXHIBIT 4.1

                     STOCKHOLDER PROTECTION RIGHTS AGREEMENT

                                   dated as of

                                 August 26, 1998

                                     between

                           BARRINGER TECHNOLOGIES INC.

                                       and

                    AMERICAN STOCK TRANSFER & TRUST COMPANY,

                                 as Rights Agent


















<PAGE>



<TABLE>

                     STOCKHOLDER PROTECTION RIGHTS AGREEMENT

                                Table of Contents

                                                                                                            Page


                                    Article I
                                   DEFINITIONS

<S>     <C>                                                                                                 <C>
Section 1.1       Definitions................................................................................2

                                   Article II
                                   THE RIGHTS

Section 2.1       Summary of Rights.........................................................................10
Section 2.2       Legend on Common Stock Certificates.......................................................10
Section 2.3       Exercise of Rights; Separation of Rights..................................................11
Section 2.4       Adjustments to Exercise Price; Number of Rights...........................................14
Section 2.5       Date on Which Exercise is Effective.......................................................16
Section 2.6       Execution, Authentication, Delivery
                    and Dating of Rights Certificates.......................................................16
Section 2.7       Registration, Registration of Transfer and Exchange.......................................17
Section 2.8       Mutilated, Destroyed, Lost and Stolen Rights Certificates.................................18
Section 2.9       Persons Deemed Owners.....................................................................19
Section 2.10      Delivery and Cancellation of Certificates.................................................20
Section 2.11      Agreement of Rights Holders...............................................................20

                                   Article III
                    ADJUSTMENTS TO THE RIGHTS IN THE EVENT OF
                              CERTAIN TRANSACTIONS

Section 3.1       Flip-in...................................................................................21
Section 3.2       Flip-over.................................................................................24

                                   Article IV
                                THE RIGHTS AGENT

Section 4.1       General...................................................................................25
Section 4.2       Merger or Consolidation or Change of Name of Rights Agent.................................26
Section 4.3       Duties of Rights Agent....................................................................27
Section 4.4       Change of Rights Agent....................................................................30



<PAGE>



                                      -iii-

                                    Article V
                                  MISCELLANEOUS

Section 5.1       Redemption................................................................................31
Section 5.2       Expiration................................................................................32
Section 5.3       Issuance of New Rights Certificates.......................................................32
Section 5.4       Supplements and Amendments................................................................33
Section 5.5       Fractional Shares.........................................................................33
Section 5.6       Rights of Action..........................................................................34
Section 5.7       Holder of Rights Not Deemed a Stockholder.................................................34
Section 5.8       Notice of Proposed Actions................................................................35
Section 5.9       Notices...................................................................................35
Section 5.10      Suspension of Exercisability..............................................................36
Section 5.11      Costs of Enforcement......................................................................36
Section 5.12      Successors................................................................................37
Section 5.13      Benefits of this Agreement................................................................37
Section 5.14      Determination and Actions by the Board of Directors, etc..................................37
Section 5.15      Descriptive Headings......................................................................37
Section 5.16      Governing Law.............................................................................37
Section 5.17      Counterparts..............................................................................38
Section 5.18      Severability..............................................................................38

</TABLE>

                                    EXHIBITS

Exhibit A         Form of Rights Certificate (Together with Form of
                    Election to Exercise)

Exhibit B         Form of Certificate of Designation and Terms of
                    Participating Preferred Stock




<PAGE>


                     STOCKHOLDER PROTECTION RIGHTS AGREEMENT


     STOCKHOLDER PROTECTION RIGHTS AGREEMENT (as amended from time to time, this
"Agreement"),  dated as of August 26, 1998, between Barringer Technologies Inc.,
a Delaware  corporation  (the  "Company"),  and American  Stock Transfer & Trust
Company, a New York corporation, as Rights Agent (the "Rights Agent", which term
shall include any successor Rights Agent hereunder).

                                   WITNESSETH:

     WHEREAS,  the Board of  Directors  of the  Company has (a)  authorized  and
declared a dividend  of one right  ("Right")  in respect of each share of Common
Stock (as  hereinafter  defined)  held of record as of the close of  business on
September  8, 1998 (the  "Record  Time") and (b) as  provided  in  Section  2.4,
authorized  the  issuance of one Right in respect of each share of Common  Stock
issued after the Record Time and prior to the  Separation  Time (as  hereinafter
defined) and, to the extent  provided in Section 5.3, each share of Common Stock
issued after the Separation Time;

     WHEREAS,  subject to the terms and conditions  hereof,  each Right entitles
the holder thereof,  after the Separation Time, to purchase securities or assets
of the Company (or, in certain  cases,  securities  of certain  other  entities)
pursuant to the terms and subject to the conditions set forth herein; and

     WHEREAS,  the Company  desires to appoint the Rights Agent to act on behalf
of the Company,  and the Rights Agent is willing so to act, in  connection  with
the issuance, transfer,

<PAGE>


exchange and replacement of Rights  Certificates (as hereinafter  defined),  the
exercise of Rights and other matters referred to herein;

     NOW  THEREFORE,  in  consideration  of  the  premises  and  the  respective
agreements set forth herein, the parties hereby agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

     1.1 Definitions.  For purposes of this Agreement,  the following terms have
the meanings indicated:

     "Acquiring  Person" shall mean any Person who is a Beneficial  Owner of 15%
or more of the outstanding shares of Common Stock;  provided,  however, that the
term  "Acquiring  Person" shall not include any Person (i) who is the Beneficial
Owner of 15% or more of the  outstanding  shares of Common  Stock on the date of
this  Agreement or who shall become the  Beneficial  Owner of 15% or more of the
outstanding  shares of Common Stock solely as a result of an  acquisition by the
Company of shares of Common  Stock,  until such time  hereafter or thereafter as
any of such Persons shall become the Beneficial  Owner (other than by means of a
stock  dividend or stock split) of any additional  shares of Common Stock,  (ii)
who becomes the  Beneficial  Owner of 15% or more of the  outstanding  shares of
Common  Stock but who  acquired  Beneficial  Ownership of shares of Common Stock
without any plan or intention to seek or affect control of the Company, if, upon
notice  by  the  Company,  such  Person  promptly  enters  into  an  irrevocable
commitment with the Company to divest, and thereafter  promptly divests (without
exercising  or  retaining  any power,  including  voting,  with  respect to such
shares),  sufficient  shares of Common Stock (or  securities  convertible  into,
exchangeable into or exercisable for Common Stock) so that such Person ceases to
be the Beneficial Owner of 15% or more of the outstanding shares of Common Stock
or (iii) who Beneficially  Owns shares of Common Stock consisting  solely of one
or more of (A) shares of Common Stock  Beneficially  Owned pursuant to the grant
or  exercise of an option  granted to such  Person (an  "Option  Holder") by the
Company in connection  with an agreement to merge with, or acquire,  the Company
entered into prior to a Flip-in Date,  (B) shares of Common Stock (or securities
convertible   into,   exchangeable   into  or  exercisable  for  Common  Stock),
Beneficially  Owned by such Option Holder or its Affiliates or Associates at the
time of grant of such  option  and (C)  shares  of Common  Stock (or  securities
convertible into, exchangeable into or exercisable for Common Stock) acquired by
Affiliates  or  Associates  of such Option  Holder  after the time of such grant
which,  in the aggregate,  amount to less than 1% of the  outstanding  shares of
Common  Stock.  In addition,  the Company,  any  wholly-owned  Subsidiary of the
Company and any employee stock  ownership or other employee  benefit plan of the
Company or a  wholly-owned  Subsidiary  of the Company shall not be an Acquiring
Person.

     "Affiliate" and "Associate" shall have the respective  meanings ascribed to
such terms in Rule 12b-2  under the  Exchange  Act, as such Rule is in effect on
the date of this Agreement.

     "Agreement" shall have the meaning set forth in the Preamble.

     A Person shall be deemed the "Beneficial  Owner",  and to have  "Beneficial
Ownership" of, and to "Beneficially Own", any securities as to which such Person
or any of such  Person's  Affiliates or Associates is or may be deemed to be the
beneficial  owner of pursuant to Rule 13d-3 and 13d-5 under the Exchange Act, as
such  Rules  are in  effect  on the  date  of  this  Agreement,  as  well as any
securities  as to  which  such  Person  or any of such  Person's  Affiliates  or
Associates  has the right to become  Beneficial  Owner  (whether  such  right is
exercisable  immediately  or only after the passage of time or the occurrence of
conditions) pursuant to any agreement, arrangement or understanding, or upon the
exercise of conversion rights,  exchange rights, rights (other than the Rights),
warrants or options, or otherwise; provided, however, that a Person shall not be
deemed the  "Beneficial  Owner",  or to have  "Beneficial  Ownership"  of, or to
"Beneficially  Own",  any  security (i) solely  because  such  security has been
tendered  pursuant to a tender or  exchange  offer made by such Person or any of
such Person's  Affiliates or Associates until such tendered security is accepted
for  payment or  exchange  or (ii)  solely  because  such  Person or any of such
Person's  Affiliates or Associates has or shares the power to vote or direct the
voting of such  security  pursuant to a  revocable  proxy given in response to a
public proxy or consent  solicitation made to more than ten holders of shares of
a class of stock of the Company  registered under Section 12 of the Exchange Act
and pursuant to, and in accordance  with, the applicable  rules and  regulations
under the  Exchange  Act,  except if such  power (or the  arrangements  relating
thereto) is then reportable  under Item 6 of Schedule 13D under the Exchange Act
(or any similar provision of a comparable or successor report).  For purposes of
this  Agreement,  in  determining  the percentage of the  outstanding  shares of
Common Stock with respect to which a Person is the Beneficial  Owner, all shares
as to which  such  Person  is  deemed  the  Beneficial  Owner  shall  be  deemed
outstanding.

     "Business Day" shall mean any day other than a Saturday, Sunday or a day on
which banking  institutions in The City of New York are generally  authorized or
obligated by law or executive order to close.


<PAGE>

     "Close of  business"  on any given date shall mean 5:00 p.m.  New York City
time on such date or, if such date is not a  Business  Day,  5:00 p.m.  New York
City time on the next succeeding Business Day.

     "Common  Stock" shall mean the shares of Common  Stock,  par value $.01 per
share, of the Company.

     "Company" shall have the meaning set forth in the Preamble.

     "Election to Exercise"  shall have the meaning set forth in Section  2.3(d)
hereof.

     "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended.

     "Exchange Ratio" shall have the meaning set forth in Section 3.1(c) hereof.

     "Exchange  Time"  shall  mean the time at which the right to  exercise  the
Rights shall terminate pursuant to Section 3.1(c) hereof.

     "Exercise  Price" shall mean,  as of any date,  the price at which a holder
may purchase the  securities  issuable upon  exercise of one whole Right.  Until
adjustment thereof in accordance with the terms hereof, the Exercise Price shall
equal $32.50.

     "Expansion  Factor"  shall have the  meaning  set forth in  Section  2.4(a)
hereof.

     "Expiration  Time" shall mean the earliest of (i) the Exchange  Time,  (ii)
the Redemption Time, (iii) the close of business on the tenth anniversary of the
Record Time and (iv) immediately prior to the effective time of a consolidation,
merger or share exchange of the Company (A) into another corporation or (B) with
another corporation in which the Company is the surviving corporation but Common
Stock is converted into cash and/or securities of another corporation, in either
case  pursuant to an  agreement  entered  into by the  Company  prior to a Stock
Acquisition Date.

     "Flip-in Date" shall mean any Stock  Acquisition Date or such later date as
the Board of  Directors  of the Company may from time to time fix by  resolution
adopted prior to the Flip-in Date that would otherwise have occurred.

     "Flip-over Entity," for purposes of Section 3.2, shall mean (i) in the case
of a Flip-over  Transaction  or Event  described in clause (i) of the definition
thereof, the Person issuing any securities into which shares of Common Stock are
being  converted or exchanged and, if no such  securities are being issued,  the
other  party to such  Flip-over  Transaction  or Event and (ii) in the case of a
Flip-over  Transaction  or Event  referred to in clause  (ii) of the  definition
thereof,  the Person  receiving  the  greatest  portion of the (A) assets or (B)
operating income or cash flow being transferred in such Flip-over Transaction or
Event,  provided in all cases if such Person is a subsidiary  of a  corporation,
the parent corporation shall be the Flip-Over Entity.

     "Flip-over Stock" shall mean the capital stock (or similar equity interest)
with the greatest voting power in respect of the election of directors (or other
persons similarly  responsible for direction of the business and affairs) of the
Flip-Over Entity.

     "Flip-over  Transaction  or Event"  shall mean a  transaction  or series of
transactions  after a Flip-in  Date in which,  directly or  indirectly,  (i) the
Company shall  consolidate  or merge or participate in a share exchange with any
other Person if, at the time of the  consolidation,  merger or share exchange or
at the time the  Company  enters  into any  agreement  with  respect to any such
consolidation, merger or share exchange, the Acquiring Person controls the Board
of Directors of the Company and either (A) any term of or arrangement concerning
the treatment of shares of capital stock in such consolidation,  merger or share
exchange  relating to the  Acquiring  Person is not  identical  to the terms and
arrangements  relating  to other  holders of the Common  Stock or (B) the Person
with whom the  transaction  or series of  transactions  occurs is the  Acquiring
Person or an Affiliate or Associate of the Acquiring  Person or (ii) the Company
shall sell or otherwise  transfer (or one or more of its Subsidiaries shall sell
or  otherwise  transfer)  assets  (A)  aggregating  more than 50% of the  assets
(measured by either book value or fair market value) or (B) generating more than
50% of the operating  income or cash flow,  of the Company and its  Subsidiaries
(taken as a whole) to any Person  (other  than the Company or one or more of its
wholly owned  Subsidiaries)  or to two or more such Persons which are Affiliates
or  Associates or otherwise  acting in concert,  if, at the time of the entry by
the Company (or any such Subsidiary) into an agreement with respect to such sale
or transfer of assets,  the Acquiring  Person Controls the Board of Directors of
the Company.  An Acquiring Person shall be deemed to Control the Company's Board
of Directors  when,  following a Flip-in Date, the persons who were directors of
the Company (or persons  nominated  and/or  appointed  as directors by vote of a
majority  of such  persons)  before the Stock  Acquisition  Date shall  cease to
constitute a majority of the Company's Board of Directors.

     "Market  Price"  per share of any  securities  on any date  shall  mean the
average of the daily closing prices per share of such securities  (determined as
described  below)  on  each  of the 20  consecutive  Trading  Days  through  and
including the Trading Day immediately  preceding such date;  provided,  however,
that if an event of a type  analogous to any of the events  described in Section
2.4 hereof  shall have caused the closing  prices used to  determine  the Market
Price on any Trading  Days during such period of 20 Trading Days not to be fully
comparable  with the closing price on such date, each such closing price so used
shall be  appropriately  adjusted in order to make it fully  comparable with the
closing price on such date. The closing price per share of any securities on any
date shall be the last  reported  sale price,  regular  way, or, in case no such
sale takes  place or is quoted on such date,  the average of the closing bid and
asked prices, regular way, for each share of such securities,  in either case as
reported in the principal consolidated transaction reporting system with respect
to securities listed or admitted to trading on the New York Stock Exchange, Inc.
or, if the  securities  are not  listed or  admitted  to trading on the New York
Stock  Exchange,  Inc.,  as reported in the principal  consolidated  transaction
reporting  system with respect to securities  listed on the  principal  national
securities  exchange on which the  securities  are listed or admitted to trading
or, if the  securities  are not listed or  admitted  to trading on any  national
securities  exchange,  as reported by the  National  Association  of  Securities
Dealers,  Inc. Automated  Quotation System or such other system then in use, or,
if on any such date the  securities are not listed or admitted to trading on any
national securities exchange or quoted by any such organization,  the average of
the closing bid and asked  prices as furnished  by a  professional  market maker
making a market in the  securities  selected  by the Board of  Directors  of the
Company;  provided,  however,  that if on any such date the  securities  are not
listed or admitted to trading on a national securities exchange or traded in the
over-the-counter  market, the closing price per share of such securities on such
date  shall  mean  the  fair  value  per  share of  securities  on such  date as
determined  in good  faith  by the  Board of  Directors  of the  Company,  after
consultation with a nationally recognized investment banking firm, and set forth
in a certificate delivered to the Rights Agent.

     "Option  Holder"  shall have the  meaning  set forth in the  definition  of
Acquiring Person.

     "Person" shall mean any individual, firm, partnership,  association,  group
(as such term is used in Rule 13d-5 under the  Securities  Exchange Act of 1934,
as such Rule is in effect on the date of this  Agreement),  corporation or other
entity.

     "Preferred  Stock" shall mean the series of Participating  Preferred Stock,
par  value  $2.00  per  share,  of  the  Company  created  by a  Certificate  of
Designation  and Terms in  substantially  the form set forth in Exhibit B hereto
appropriately completed.

     "Record Time" shall have the meaning set forth in the Recitals.

     "Redemption Price" shall mean an amount equal to one cent, $0.01.

     "Redemption  Time" shall mean the time at which the right to  exercise  the
Rights shall terminate pursuant to Section 5.1 hereof.

     "Right" shall have the meaning set forth in the Recitals.

     "Rights Agent" shall have the meaning set forth in the Preamble.

     "Rights  Certificate"  shall have the meaning  set forth in Section  2.3(c)
hereof.

     "Rights  Register"  shall  have the  meaning  set forth in  Section  2.7(a)
hereof.

     "Separation  Time"  shall mean the close of  business on the earlier of (i)
the tenth  business  day (or such  later date as the Board of  Directors  of the
Company may from time to time fix by resolution  adopted prior to the Separation
Time that  would  otherwise  have  occurred)  after the date on which any Person
commences a tender or exchange offer which, if consummated, would result in such
Person's becoming an Acquiring Person and (ii) the Flip-in Date; provided,  that
if the foregoing  results in the Separation Time being prior to the Record Time,
the Separation Time shall be the Record Time and provided  further,  that if any
tender  or  exchange  offer  referred  to in  clause  (i) of this  paragraph  is
cancelled,  terminated  or  otherwise  withdrawn  prior to the  Separation  Time
without the purchase of any shares of Common Stock pursuant thereto,  such offer
shall be deemed, for purposes of this paragraph, never to have been made.

     "Stock  Acquisition Date" shall mean the first date of public  announcement
by the Company (by any means) or by an Acquiring  Person  (including by means of
filing a Schedule 13D or Schedule 13G under the Securities  Exchange Act of 1934
(or any  comparable  or successor  report or schedule) or an amendment  thereto)
that a Person has become an Acquiring Person.

     "Subsidiary"  of any specified  Person shall mean any  corporation or other
entity of which a majority  of the voting  power of the equity  securities  or a
majority of the equity interest is Beneficially  Owned,  directly or indirectly,
by such Person.

     "Trading Day," when used with respect to any  securities,  shall mean a day
on which  the New York  Stock  Exchange,  Inc.  is open for the  transaction  of
business or, if such securities are not listed or admitted to trading on the New
York Stock  Exchange,  Inc., a day on which the  principal  national  securities
exchange on which such  securities are listed or admitted to trading is open for
the transaction of business or, if such securities are not listed or admitted to
trading on any national securities exchange, a Business Day.

                                   ARTICLE II

                                   THE RIGHTS

     2.1 Summary of Rights.  As soon as  practicable  after the Record Time, the
Company will mail a letter summarizing the terms of the Rights to each holder of
record of Common Stock as of the Record Time, at such holder's  address as shown
by the records of the Company.

     2.2 Legend on Common Stock Certificates.  Certificates for the Common Stock
issued after the Record Time but prior to the Separation Time shall evidence one
Right  for each  share of  Common  Stock  represented  thereby  and  shall  have
impressed on, printed on, written on or otherwise  affixed to them the following
legend:

               Until the Separation  Time (as defined in the
               Rights  Agreement  referred  to below),  this
               certificate  also  evidences and entitles the
               holder hereof to certain  Rights as set forth
               in a Rights Agreement, dated as of August 26,
               1998  (as such may be  amended  from  time to
               time,   the  "Rights   Agreement"),   between
               Barringer  Technologies  Inc. (the "Company")
               and American  Stock Transfer & Trust Company,
               as  Rights  Agent,  the  terms of  which  are
               hereby incorporated herein by reference and a
               copy of  which  is on  file at the  principal
               executive  offices  of  the  Company.   Under
               certain  circumstances,  as set  forth in the
               Rights   Agreement,   such   Rights   may  be
               redeemed,    may   become   exercisable   for
               securities   or  assets  of  the  Company  or
               securities   of   another   entity,   may  be
               exchanged for shares of Common Stock or other
               securities  or  assets  of the  Company,  may
               expire,   may   become   void  (if  they  are
               "Beneficially Owned" by an "Acquiring Person"
               or an Affiliate or Associate thereof, as such
               terms are defined in the Rights Agreement, or
               by any transferee of any of the foregoing) or
               may be evidenced by separate certificates and
               may  no   longer   be   evidenced   by   this
               certificate. The Company will mail or arrange
               for  the  mailing  of a copy  of  the  Rights
               Agreement  to the holder of this  certificate
               without charge after the receipt of a written
               request therefor.

Certificates representing shares of Common Stock that are issued and outstanding
at the Record  Time  shall  evidence  one Right for each  share of Common  Stock
evidenced thereby notwithstanding the absence of the foregoing legend.

     2.3 Exercise of Rights;  Separation of Rights. (a) Subject to Sections 3.1,
5.1 and 5.10 and  subject to  adjustment  as herein  set forth,  each Right will
entitle  the  holder  thereof,  after  the  Separation  Time  and  prior  to the
Expiration  Time, to purchase,  for the Exercise Price,  one  one-hundredth of a
share of Preferred Stock.

     (b) Until the Separation  Time, (i) no Right may be exercised and (ii) each
Right will be evidenced by the  certificate  for the associated  share of Common
Stock  (together,  in the case of certificates  issued prior to the Record Time,
with the letter mailed to the record holder thereof pursuant to Section 2.1) and
will be  transferable  only together with, and will be transferred by a transfer
(whether with or without such letter) of, such associated share.

     (c) Subject to the terms and conditions  hereof,  after the Separation Time
and prior to the  Expiration  Time, the Rights (i) may be exercised and (ii) may
be  transferred  independent of shares of Common Stock.  Promptly  following the
Separation  Time,  the Rights Agent will mail to each holder of record of Common
Stock as of the Separation  Time (other than any Person whose Rights have become
void  pursuant  to Section  3.1(b)),  at such  holder's  address as shown by the
records of the Company (the Company  hereby  agreeing to furnish  copies of such
records to the Rights  Agent for this  purpose),  (x) a  certificate  (a "Rights
Certificate")  in  substantially  the form of  Exhibit  A  hereto  appropriately
completed,  representing  the  number  of  Rights  held  by such  holder  at the
Separation Time and having such marks of  identification or designation and such
legends,  summaries  or  endorsements  printed  thereon as the  Company may deem
appropriate and as are not  inconsistent  with the provisions of this Agreement,
or as may be required to comply with any law or with any rule or regulation made
pursuant  thereto  or with any rule or  regulation  of any  national  securities
exchange or quotation system on which the Rights may from time to time be listed
or traded, or to conform to usage, and (y) a disclosure statement describing the
Rights.

     (d) Subject to the terms and conditions hereof,  Rights may be exercised on
any Business Day after the Separation  Time and prior to the Expiration  Time by
submitting  to the Rights Agent the Rights  Certificate  evidencing  such Rights
with an Election to Exercise (an  "Election to Exercise")  substantially  in the
form attached to the Rights  Certificate duly completed,  accompanied by payment
in cash,  or by certified or official  bank check or money order  payable to the
order of the Company,  of a sum equal to the Exercise  Price  multiplied  by the
number of Rights being  exercised and a sum sufficient to cover any transfer tax
or charge  which may be  payable  in respect  of any  transfer  involved  in the
transfer  or  delivery  of Rights  Certificates

<PAGE>

or the issuance or delivery of  certificates  for shares or depositary  receipts
(or both) in a name other than that of the holder of the Rights being exercised.

     (e) Upon  receipt of a Rights  Certificate,  with an  Election  to Exercise
accompanied by payment as set forth in Section 2.3(d),  and subject to the terms
and  conditions   hereof,  the  Rights  Agent  will  thereupon  promptly  (i)(A)
requisition from a transfer agent stock  certificates  evidencing such number of
shares or other  securities  to be  purchased  (the Company  hereby  irrevocably
authorizing its transfer agents to comply with all such requisitions) and (B) if
the  Company  elects   pursuant  to  Section  5.5  not  to  issue   certificates
representing fractional shares,  requisition from the depositary selected by the
Company depositary  receipts  representing the fractional shares to be purchased
or  requisition  from  the  Company  the  amount  of  cash to be paid in lieu of
fractional  shares in accordance with Section 5.5 and (ii) after receipt of such
certificates,  depositary  receipts and/or cash, deliver the same to or upon the
order of the registered  holder of such Rights  Certificate,  registered (in the
case of  certificates  or  depositary  receipts) in such name or names as may be
designated by such holder.

     (f) In case the  holder  of any  Rights  shall  exercise  less than all the
Rights evidenced by such holder's Rights  Certificate,  a new Rights Certificate
evidencing the Rights  remaining  unexercised will be issued by the Rights Agent
to such holder or to such holder's duly authorized assigns.

     (g) The Company  covenants and agrees that it will (i) take all such action
as may be necessary to ensure that all shares  delivered upon exercise of Rights
shall, at the time of delivery of the  certificates  for such shares (subject to
payment of the Exercise Price), be duly and validly authorized, executed, issued
and delivered and fully paid and nonassessable; (ii) take all such action as may
be necessary to comply with any applicable requirements of the Securities Act

<PAGE>

of 1933 or the Exchange Act, and the rules and regulations  thereunder,  and any
other applicable law, rule or regulation, in connection with the issuance of any
shares upon  exercise of Rights;  and (iii) pay when due and payable any and all
federal and state  transfer taxes and charges which may be payable in respect of
the original  issuance or delivery of the Rights  Certificates  or of any shares
issued upon the  exercise  of Rights,  provided,  that the Company  shall not be
required to pay any  transfer  tax or charge  which may be payable in respect of
any transfer involved in the transfer or delivery of Rights  Certificates or the
issuance or delivery of certificates for shares in a name other than that of the
holder of the Rights being transferred or exercised.

     2.4 Adjustments to Exercise Price;  Number of Rights.  (a) In the event the
Company shall at any time after the Record Time and prior to the Separation Time
(i)  declare or pay a dividend on Common  Stock  payable in Common  Stock,  (ii)
subdivide the outstanding  Common Stock or (iii) combine the outstanding  Common
Stock into a smaller number of shares of Common Stock, (x) the Exercise Price in
effect  after  such  adjustment  will be equal to the  Exercise  Price in effect
immediately  prior to such adjustment  divided by the number of shares of Common
Stock  (the  "Expansion  Factor")  that a holder of one  share of  Common  Stock
immediately  prior to such  dividend,  subdivision  or  combination  would  hold
thereafter as a result thereof and (y) each Right held prior to such  adjustment
will  become  that  number  of Rights  equal to the  Expansion  Factor,  and the
adjusted  number of Rights will be deemed to be distributed  among the shares of
Common Stock with respect to which the original  Rights were associated (if they
remain  outstanding)  and  the  shares  issued  in  respect  of  such  dividend,
subdivision  or  combination,  so that each such share of Common Stock will have
exactly one Right  associated  with it. Each  adjustment  made  pursuant to this
paragraph  shall be made as of the payment or effective  date for the applicable
dividend, subdivision or combination.

<PAGE>

     In the event the Company  shall at any time after the Record Time and prior
to the  Separation  Time issue any shares of Common  Stock  otherwise  than in a
transaction  referred to in the preceding  paragraph,  each such share of Common
Stock so issued shall automatically have one new Right associated with it, which
Right shall be  evidenced by the  certificate  representing  such share.  To the
extent provided in Section 5.3, Rights shall be issued by the Company in respect
of shares of  Common  Stock  that are  issued or sold by the  Company  after the
Separation Time.

     (b) In the event the  Company  shall at any time after the Record  Time and
prior to the  Separation  Time issue or distribute  any  securities or assets in
respect of, in lieu of or in exchange for Common Stock (other than pursuant to a
regular  periodic  cash  dividend  or a dividend  paid  solely in Common  Stock)
whether by dividend,  in a reclassification or  recapitalization  (including any
such  transaction  involving  a merger,  consolidation  or share  exchange),  or
otherwise,  the Company  shall make such  adjustments,  if any, in the  Exercise
Price,  number of Rights and/or  securities or other property  purchasable  upon
exercise  of  Rights  as the  Board of  Directors  of the  Company,  in its sole
discretion,  may deem to be  appropriate  under  the  circumstances  in order to
adequately  protect the  interests of the holders of Rights  generally,  and the
Company and the Rights Agent shall amend this  Agreement as necessary to provide
for such adjustments.

     (c) Each adjustment to the Exercise Price made pursuant to this Section 2.4
shall be calculated to the nearest cent.  Whenever an adjustment to the Exercise
Price is made  pursuant to this  Section  2.4,  the Company  shall (i)  promptly
prepare a certificate setting forth such adjustment and a brief statement of the
facts accounting for such adjustment and (ii)

<PAGE>

promptly file with the Rights Agent and with each transfer  agent for the Common
Stock a copy of such certificate.

     (d) Rights  certificates  shall represent the securities  purchasable under
the  terms  of  this  Agreement,  including  any  adjustment  or  change  in the
securities   purchasable   upon  exercise  of  the  Rights,   even  though  such
certificates  may continue to express the securities  purchasable at the time of
issuance  of the  initial  Rights  Certificates.

     2.5 Date on Which  Exercise  is  Effective.  Each  person in whose name any
certificate  for  shares is issued  upon the  exercise  of Rights  shall for all
purposes be deemed to have become the holder of record of the shares represented
thereby on the date upon which the Rights Certificate evidencing such Rights was
duly  surrendered  and  payment of the  Exercise  Price for such Rights (and any
applicable taxes and other governmental charges payable by the exercising holder
hereunder) was made; provided,  however,  that if the date of such surrender and
payment is a date upon which the stock transfer books of the Company are closed,
such person shall be deemed to have become the record  holder of such shares on,
and such certificate  shall be dated, the next succeeding  Business Day on which
the stock transfer books of the Company are open. 

     2.6 Execution, Authentication,  Delivery and Dating of Rights Certificates.
(a) The Rights  Certificates  shall be  executed on behalf of the Company by its
Chairman of the Board,  the President or one of its Vice  Presidents,  under its
corporate  seal  reproduced  thereon  attested  by its  Secretary  or one of its
Assistant  Secretaries.  The  signature  of any of these  officers on the Rights
Certificates may be manual or facsimile.  

     Rights  Certificates   bearing  the  manual  or  facsimile   signatures  of
individuals  who were at any time the proper  officers of the Company shall bind
the Company, notwithstanding

<PAGE>

that such  individuals  or any of them have ceased to hold such offices prior to
the countersignature and delivery of such Rights Certificates.

     Promptly after the Company learns of the Separation  Time, the Company will
notify  the  Rights  Agent  of such  Separation  Time and  will  deliver  Rights
Certificates executed by the Company to the Rights Agent for  counter-signature,
and, subject to Section 3.1(b), the Rights Agent shall manually  countersign and
deliver  such  Rights  Certificates  to the  holders of the Rights  pursuant  to
Section  2.3(c)  hereof.  No Rights  Certificate  shall be valid for any purpose
unless manually countersigned by the Rights Agent.

     (b) Each  Rights  Certificate  shall be dated the date of  countersignature
thereof.

     2.7  Registration,  Registration  of Transfer and  Exchange.  (a) After the
Separation  Time,  the  Company  will cause to be kept a register  (the  "Rights
Register") in which, subject to such reasonable regulations as it may prescribe,
the Company will provide for the registration and transfer of Rights. The Rights
Agent is hereby appointed "Rights  Registrar" for the purpose of maintaining the
Rights Register for the Company and  registering  Rights and transfers of Rights
after the Separation Time as herein provided. In the event that the Rights Agent
shall cease to be the Rights Registrar,  the Rights Agent will have the right to
examine the Rights Register at all reasonable times after the Separation Time.

     After the Separation Time and prior to the Expiration  Time, upon surrender
for registration of transfer or exchange of any Rights Certificate,  and subject
to the provisions of Section  2.7(c) and (d), the Company will execute,  and the
Rights  Agent will  countersign  and  deliver,  in the name of the holder or the
designated  transferee  or  transferees,  as required  pursuant to the  holder's
instructions,  one or more new Rights Certificates evidencing the same aggregate
number of Rights as did the Rights  Certificate  so  surrendered.

<PAGE>

     (b) Except as otherwise  provided in Section 3.1(b), all Rights issued upon
any  registration  of transfer or exchange of Rights  Certificates  shall be the
valid obligations of the Company,  and such Rights shall be entitled to the same
benefits under this Agreement as the Rights  surrendered upon such  registration
of transfer or exchange.

     (c) Every Rights  Certificate  surrendered for  registration of transfer or
exchange  shall be duly endorsed,  or be accompanied by a written  instrument of
transfer in form  satisfactory  to the Company or the Rights Agent,  as the case
may be,  duly  executed by the holder  thereof or such  holder's  attorney  duly
authorized  in  writing.  As a  condition  to the  issuance  of any  new  Rights
Certificate under this Section 2.7, the Company may require the payment of a sum
sufficient to cover any tax or other governmental  charge that may be imposed in
relation thereto.

     (d) The Company  shall not be required to register the transfer or exchange
of any Rights  after such Rights have become  void under  Section  3.1(b),  been
exchanged under Section 3.1(c) or been redeemed under Section 5.1.

     2.8 Mutilated,  Destroyed, Lost and Stolen Rights Certificates.  (a) If any
mutilated  Rights  Certificate  is  surrendered to the Rights Agent prior to the
Expiration Time, then,  subject to Sections 3.1(b),  3.1(c) and 5.1, the Company
shall  execute and the Rights  Agent shall  countersign  and deliver in exchange
therefor a new Rights  Certificate  evidencing  the same number of Rights as did
the Rights Certificate so surrendered.

     (b) If there shall be  delivered  to the Company and the Rights Agent prior
to the Expiration Time (i) evidence to their  satisfaction  of the  destruction,
loss or theft of any Rights  Certificate  and (ii) such security or indemnity as
may be required by them to save each of them and any of their  agents  harmless,
then, subject to Sections 3.1(b), 3.1(c) and 5.1 and in the absence of notice to
the Company or the Rights Agent that such Rights Certificate has been

<PAGE>

acquired  by a bona fide  purchaser,  the  Company  shall  execute  and upon its
request the Rights  Agent shall  countersign  and  deliver,  in lieu of any such
destroyed,  lost  or  stolen  Rights  Certificate,   a  new  Rights  Certificate
evidencing the same number of Rights as did the Rights Certificate so destroyed,
lost or stolen.

     (c) As a condition to the issuance of any new Rights Certificate under this
Section  2.8, the Company may require the payment of a sum  sufficient  to cover
any tax or other governmental charge that may be imposed in relation thereto and
any  other  expenses  (including  the fees and  expenses  of the  Rights  Agent)
connected therewith.

     (d) Every new Rights  Certificate  issued  pursuant to this  Section 2.8 in
lieu of any  destroyed,  lost or stolen  Rights  Certificate  shall  evidence an
original additional  contractual  obligation of the Company,  whether or not the
destroyed, lost or stolen Rights Certificate shall be at any time enforceable by
anyone,  and, subject to Section 3.1(b) shall be entitled to all the benefits of
this Agreement  equally and  proportionately  with any and all other Rights duly
issued  hereunder. 

     2.9 Persons Deemed Owners. Prior to due presentment of a Rights Certificate
(or, prior to the Separation Time, the associated Common Stock  certificate) for
registration  of transfer,  the  Company,  the Rights Agent and any agent of the
Company  or the  Rights  Agent may deem and treat the  person in whose name such
Rights  Certificate  (or,  prior  to the  Separation  Time,  such  Common  Stock
certificate)  is  registered  as the  absolute  owner  thereof and of the Rights
evidenced  thereby for all  purposes  whatsoever,  including  the payment of the
Redemption  Price and neither the Company nor the Rights Agent shall be affected
by any notice to the  contrary.  As used in this  Agreement,  unless the context
otherwise requires, the term "holder" of

<PAGE>

any Rights  shall mean the  registered  holder of such Rights (or,  prior to the
Separation Time, the associated shares of Common Stock).

     2.10 Delivery and  Cancellation of  Certificates.  All Rights  Certificates
surrendered  upon exercise or for registration of transfer or exchange shall, if
surrendered  to any person  other than the Rights  Agent,  be  delivered  to the
Rights Agent and, in any case, shall be promptly  cancelled by the Rights Agent.
The Company may at any time  deliver to the Rights  Agent for  cancellation  any
Rights Certificates  previously  countersigned and delivered hereunder which the
Company may have acquired in any manner whatsoever,  and all Rights Certificates
so  delivered  shall be  promptly  cancelled  by the  Rights  Agent.  No  Rights
Certificates  shall be  countersigned  in lieu of or in exchange  for any Rights
Certificates  cancelled  as provided in this Section  2.10,  except as expressly
permitted by this Agreement. The Rights Agent shall destroy all cancelled Rights
Certificates and deliver a certificate of destruction to the Company.

     2.11 Agreement of Rights  Holders.  Every holder of Rights by accepting the
same  consents  and agrees with the Company and the Rights  Agent and with every
other holder of Rights that:

     (a) prior to the  Separation  Time,  each Right will be  transferable  only
together with, and will be transferred by a transfer of, the associated share of
Common Stock;

     (b) after the Separation Time, the Rights Certificates will be transferable
only on the Rights Register as provided herein;

     (c) prior to due  presentment  of a Rights  Certificate  (or,  prior to the
Separation  Time, the associated  Common Stock  certificate) for registration of
transfer,  the  Company,  the Rights  Agent and any agent of the  Company or the
Rights Agent may deem and treat the person in whose name the Rights  Certificate
(or, prior to the Separation Time, the associated  Common 

<PAGE>

Stock certificate) is registered as the absolute owner thereof and of the Rights
evidenced thereby for all purposes  whatsoever,  and neither the Company nor the
Rights Agent shall be affected by any notice to the contrary;

     (d)  Rights   beneficially   owned  by  certain  Persons  will,  under  the
circumstances set forth in Section 3.1(b), become void; and

     (e)  this  Agreement  may be  supplemented  or  amended  from  time to time
pursuant to Section 2.4(b) or 5.4 hereof.

                                   ARTICLE III

                          ADJUSTMENTS TO THE RIGHTS IN
                        THE EVENT OF CERTAIN TRANSACTIONS

     3.1 Flip-in.  (a) In the event that prior to the Expiration  Time a Flip-in
Date shall  occur,  except as provided  in this  Section  3.1,  each Right shall
constitute  the right to purchase  from the Company,  upon  exercise  thereof in
accordance  with the terms hereof (but subject to Section 5.10),  that number of
shares of Common Stock having an aggregate Market Price on the Stock Acquisition
Date  equal to twice the  Exercise  Price  for an  amount  in cash  equal to the
Exercise Price (such right to be appropriately  adjusted in order to protect the
interests of the holders of Rights  generally in the event that on or after such
Stock  Acquisition  Date  an  event  of a type  analogous  to any of the  events
described  in Section  2.4(a) or (b) shall  have  occurred  with  respect to the
Common Stock).

                  (b) Notwithstanding the foregoing, any Rights that are or were
Beneficially Owned on or after the Stock Acquisition Date by an Acquiring Person
or an Affiliate or Associate  thereof or by any transferee,  direct or indirect,
of any of the  foregoing  shall  become  void  and any  holder  of  such  Rights
(including  transferees)  shall thereafter have no right to 

<PAGE>


exercise or transfer such Rights under any provision of this  Agreement.  If any
Rights  Certificate  is  presented  for  assignment  or exercise  and the Person
presenting the same will not complete the  certification set forth at the end of
the form of  assignment  or notice of  election to  exercise  and  provide  such
additional  evidence of the identity of the Beneficial  Owner and its Affiliates
and Associates (or former Beneficial Owners and their Affiliates and Associates)
as the Company  shall  reasonably  request,  then the Company  shall be entitled
conclusively to deem the Beneficial  Owner thereof to be an Acquiring  Person or
an Affiliate or Associate  thereof or a transferee  of any of the  foregoing and
accordingly  will  deem  the  Rights  evidenced  thereby  to  be  void  and  not
transferable or exercisable.

     (c) The Board of Directors  of the Company may, at its option,  at any time
after a Flip-in Date and prior to the time that an Acquiring  Person becomes the
Beneficial  Owner of more than 50% of the  outstanding  shares  of Common  Stock
elect to exchange all (but not less than all) the then outstanding Rights (which
shall not include  Rights that have become void  pursuant to the  provisions  of
Section  3.1(b)) for shares of Common Stock at an exchange ratio of one share of
Common Stock per Right, appropriately adjusted in order to protect the interests
of holders of Rights  generally in the event that after the  Separation  Time an
event of a type  analogous to any of the events  described in Section  2.4(a) or
(b) shall have occurred with respect to the Common Stock (such  exchange  ratio,
as adjusted from time to time,  being  hereinafter  referred to as the "Exchange
Ratio").

     Immediately  upon the  action  of the  Board of  Directors  of the  Company
electing to  exchange  the  Rights,  without any further  action and without any
notice,  the right to exercise the Rights will  terminate  and each Right (other
than Rights that have become void  pursuant to Section  3.1(b)) will  thereafter
represent  only the right to receive a number of shares of Common 

<PAGE>

Stock equal to the  Exchange  Ratio.  Promptly  after the action of the Board of
Directors electing to exchange the Rights, the Company shall give notice thereof
(specifying  the steps to be taken to receive shares of Common Stock in exchange
for Rights) to the Rights Agent and the holders of the Rights (other than Rights
that have become void pursuant to Section 3.1(b)) outstanding  immediately prior
thereto by mailing such notice in accordance with Section 5.9.

     Each  Person in whose name any  certificate  for shares is issued  upon the
exchange of Rights  pursuant to this Section  3.1(c) or Section 3.1(d) shall for
all  purposes  be  deemed to have  become  the  holder  of record of the  shares
represented thereby on, and such certificate shall be dated, the date upon which
the Rights  Certificate  evidencing such Rights was duly surrendered and payment
of any applicable taxes and other governmental charges payable by the holder was
made;  provided,  however,  that if the date of such  surrender and payment is a
date upon which the stock transfer books of the Company are closed,  such Person
shall be deemed to have  become  the record  holder of such  shares on, and such
certificate shall be dated, the next succeeding  Business Day on which the stock
transfer books of the Company are open.

     (d) Whenever the Company shall become obligated under Section 3.1(a) or (c)
to issue shares of Common Stock upon exercise of or in exchange for Rights,  the
Company,  at its option, may substitute therefor shares of Preferred Stock, at a
ratio of one  one-hundredth  of a share of  Preferred  Stock  for each  share of
Common Stock so issuable.

     (e) In the event  that there  shall not be  sufficient  treasury  shares or
authorized but unissued shares of Common Stock or Preferred Stock of the Company
to permit the  exercise  or exchange  in full of the Rights in  accordance  with
Section 3.1(a) or (c), and the Company elects not to, or is otherwise unable to,
make the exchange  referred to in Section  3.1(c),  the Company shall either (i)
call a meeting of stockholders seeking approval to cause sufficient

<PAGE>

additional  shares  to be  authorized  (provided  that if such  approval  is not
obtained  the  Company  will take the action  specified  in clause  (ii) of this
sentence)  or (ii) take such action as shall be necessary to ensure and provide,
to the extent  permitted by applicable  law and any agreements or instruments in
effect on the Stock  Acquisition  Date to which it is a party,  that each  Right
shall thereafter  constitute the right to receive,  (x) at the Company's option,
either (A) in return for the Exercise Price,  debt or equity securities or other
assets  (or a  combination  thereof)  having a fair  value  equal  to twice  the
Exercise  Price, or (B) without  payment of  consideration  (except as otherwise
required by  applicable  law),  debt or equity  securities or other assets (or a
combination  thereof) having a fair value equal to the Exercise Price, or (y) if
the  Board of  Directors  of the  Company  elects  to  exchange  the  Rights  in
accordance with Section 3.1(c),  debt or equity securities or other assets (or a
combination  thereof)  having a fair  value  equal to the  product of the Market
Price of a share of Common Stock on the Flip-in Date times the Exchange Ratio in
effect on the Flip-in Date,  where in any case set forth in (x) or (y) above the
fair  value  of such  debt or  equity  securities  or other  assets  shall be as
determined  in good  faith  by the  Board of  Directors  of the  Company,  after
consultation with a nationally recognized investment banking firm.



     3.2  Flip-over.  (a) Prior to the  Expiration  Time,  the Company shall not
enter into any  agreement  with  respect to,  consummate  or permit to occur any
Flip-over  Transaction  or Event  unless and until it shall have  entered into a
supplemental agreement with the Flip-over Entity, for the benefit of the holders
of the Rights,  providing that, upon consummation or occurrence of the Flip-over
Transaction  or Event (i) each Right shall  thereafter  constitute  the right to
purchase from the Flip-over Entity, upon exercise thereof in accordance with the
terms hereof,  that number of shares of Flip-over Stock of the Flip-over  Entity
having an aggregate 

<PAGE>


Market  Price  on the  date of  consummation  or  occurrence  of such  Flip-over
Transaction  or Event  equal to twice the  Exercise  Price for an amount in cash
equal to the Exercise Price (such right to be appropriately adjusted in order to
protect the interests of the holders of Rights generally in the event that after
such date of  consummation  or occurrence an event of a type analogous to any of
the events  described in Section  2.4(a) or (b) shall have occurred with respect
to the Flip-over Stock) and (ii) the Flip-over Entity shall thereafter be liable
for, and shall assume, by virtue of such Flip-over Transaction or Event and such
supplemental  agreement,  all the obligations and duties of the Company pursuant
to this Agreement.  The provisions of this Section 3.2 shall apply to successive
Flip-over  Transactions or Events.  

     (b) Prior to the  Expiration  Time,  unless  the  Rights  will be  redeemed
pursuant to Section 5.1 hereof in  connection  therewith,  the Company shall not
enter into any  agreement  with  respect to,  consummate  or permit to occur any
Flip-over  Transaction  or Event if at the time  thereof  there are any  rights,
warrants or  securities  outstanding  or any other  arrangements,  agreements or
instruments  that would eliminate or otherwise  diminish in any material respect
the benefits  intended to be afforded by this Rights Agreement to the holders of
Rights upon consummation of such transaction.

                                   ARTICLE IV

                                THE RIGHTS AGENT

     4.1  General.  (a) The Company  hereby  appoints the Rights Agent to act as
agent for the Company in accordance  with the terms and conditions  hereof,  and
the Rights Agent hereby accepts such  appointment.  The Company agrees to pay to
the  Rights  Agent  reasonable  compensation  for all  services  rendered  by it
hereunder and, from time to time, on 

<PAGE>

demand of the Rights Agent,  its reasonable  expenses and counsel fees and other
disbursements incurred in the administration and execution of this Agreement and
the exercise and performance of its duties hereunder. The Company also agrees to
indemnify  the Rights  Agent for,  and to hold it  harmless  against,  any loss,
liability,  or  expense,  incurred  without  negligence,  bad  faith or  willful
misconduct on the part of the Rights  Agent,  for anything done or omitted to be
done by the Rights Agent in connection with the acceptance and administration of
this Agreement,  including the costs and expenses of defending against any claim
of liability.

     (b) The Rights Agent shall be protected and shall incur no liability for or
in respect of any action taken, suffered or omitted by it in connection with its
administration of this Agreement in reliance upon any certificate for securities
purchasable upon exercise of Rights,  Rights Certificate,  certificate for other
securities  of the Company,  instrument  of  assignment  or  transfer,  power of
attorney,   endorsement,   affidavit,   letter,  notice,   direction,   consent,
certificate,  statement, or other paper or document believed by it to be genuine
and to be signed,  executed and, where necessary,  verified or acknowledged,  by
the proper person or persons.


     4.2  Merger or  Consolidation  or Change of Name of Rights  Agent.  (a) Any
corporation  into which the Rights  Agent or any  successor  Rights Agent may be
merged or with which it may be consolidated,  or any corporation  resulting from
any merger or  consolidation  to which the Rights Agent or any successor  Rights
Agent is a party,  or any  corporation  succeeding to the  shareholder  services
business  of the  Rights  Agent  or any  successor  Rights  Agent,  will  be the
successor  to the Rights  Agent under this  Agreement  without the  execution or
filing of any paper or any further act on the part of any of the parties hereto,
provided that such corporation  would be eligible for appointment as a successor
Rights  Agent under the  provisions  of Section 4.4 hereof.  In case at the time
such successor Rights Agent succeeds to the agency created by this 

<PAGE>

Agreement  any of the  Rights  Certificates  have  been  countersigned  but  not
delivered, any such successor Rights Agent may adopt the countersignature of the
predecessor Rights Agent and deliver such Rights  Certificates so countersigned;
and in  case  at  that  time  any of  the  Rights  Certificates  have  not  been
countersigned,   any  successor   Rights  Agent  may  countersign   such  Rights
Certificates  either in the name of the predecessor  Rights Agent or in the name
of the successor  Rights Agent;  and in all such cases such Rights  Certificates
will  have  the full  force  provided  in the  Rights  Certificates  and in this
Agreement.

     (b) In case at any time the name of the Rights Agent is changed and at such
time any of the  Rights  Certificates  shall  have  been  countersigned  but not
delivered,  the Rights Agent may adopt the countersignature under its prior name
and deliver Rights  Certificates so countersigned;  and in case at that time any
of the Rights Certificates shall not have been  countersigned,  the Rights Agent
may  countersign  such  Rights  Certificates  either in its prior name or in its
changed name; and in all such cases such Rights Certificates shall have the full
force provided in the Rights Certificates and in this Agreement.

     4.3 Duties of Rights  Agent.  The Rights  Agent  undertakes  the duties and
obligations  imposed by this Agreement upon the following  terms and conditions,
by all of which the  Company and the  holders of Rights  Certificates,  by their
acceptance thereof, shall be bound:

     (a) The  Rights  Agent may  consult  with legal  counsel  (who may be legal
counsel  for the  Company),  and the  opinion of such  counsel  will be full and
complete authorization and protection to the Rights Agent as to any action taken
or omitted by it in good faith and in accordance with such opinion.

     (b)  Whenever in the  performance  of its duties under this  Agreement  the
Rights Agent deems it  necessary or desirable  that any fact or matter be proved
or established by

<PAGE>

the Company  prior to taking or  suffering  any action  hereunder,  such fact or
matter  (unless  other  evidence  in  respect  thereof  be  herein  specifically
prescribed)  may be  deemed  to be  conclusively  proved  and  established  by a
certificate  signed by a person  believed by the Rights Agent to be the Chairman
of the Board,  the  President or any Vice  President and by the Treasurer or any
Assistant  Treasurer or the Secretary or any Assistant  Secretary of the Company
and  delivered  to  the  Rights  Agent;   and  such  certificate  will  be  full
authorization to the Rights Agent for any action taken or suffered in good faith
by it under the provisions of this Agreement in reliance upon such certificate.

     (c) The Rights Agent will be liable  hereunder only for its own negligence,
bad faith or willful misconduct.

     (d) The  Rights  Agent  will not be  liable  for or by reason of any of the
statements  of  fact  or  recitals   contained  in  this  Agreement  or  in  the
certificates  for securities  purchasable  upon exercise of Rights or the Rights
Certificates (except its countersignature  thereof) or be required to verify the
same,  but all such  statements and recitals are and will be deemed to have been
made by the Company only.

     (e) The Rights Agent will not be under any responsibility in respect of the
validity of this Agreement or the execution and delivery  hereof (except the due
authorization,  execution and delivery hereof by the Rights Agent) or in respect
of the validity or execution of any certificate for securities  purchasable upon
exercise of Rights or Rights Certificate (except its countersignature  thereof);
nor will it be  responsible  for any breach by the  Company of any  covenant  or
condition contained in this Agreement or in any Rights Certificate;  nor will it
be responsible for any change in the exercisability of the Rights (including the
Rights  becoming  void  pursuant  to Section  3.1(b)  hereof) or any  adjustment
required under the provisions of Section

<PAGE>

2.4, 3.1 or 3.2 hereof or  responsible  for the manner,  method or amount of any
such adjustment or the ascertaining of the existence of facts that would require
any such adjustment (except with respect to the exercise of Rights after receipt
of the certificate  contemplated by Section 2.4 describing any such adjustment);
nor  will it by any act  hereunder  be  deemed  to make  any  representation  or
warranty as to the  authorization  or reservation of any securities  purchasable
upon  exercise  of  Rights  or  any  Rights  or as  to  whether  any  securities
purchasable  upon  exercise of Rights  will,  when  issued,  be duly and validly
authorized, executed, issued and delivered and fully paid and nonassessable.

     (f) The  Company  agrees that it will  perform,  execute,  acknowledge  and
deliver or cause to be performed, executed,  acknowledged and delivered all such
further and other acts, instruments and assurances as may reasonably be required
by the Rights Agent for the carrying  out or  performing  by the Rights Agent of
the provisions of this Agreement.

     (g)  The  Rights  Agent  is  hereby   authorized  and  directed  to  accept
instructions  with respect to the  performance of its duties  hereunder from any
person  believed  by the  Rights  Agent to be the  Chairman  of the  Board,  the
President or any Vice  President or the Secretary or any Assistant  Secretary or
the  Treasurer or any Assistant  Treasurer of the Company,  and to apply to such
persons for advice or instructions  in connection with its duties,  and it shall
not be liable for any action taken or suffered by it in good faith in accordance
with instructions of any such person.

     (h) The Rights Agent and any stockholder,  director, officer or employee of
the  Rights  Agent  may  buy,  sell or deal in  Common  Stock,  Rights  or other
securities of the Company or become pecuniarily interested in any transaction in
which the  Company  may be  interested,  or  contract  with or lend money to the
Company or otherwise act as fully and freely as though it were

<PAGE>

not Rights Agent under this Agreement.  Nothing herein shall preclude the Rights
Agent from acting in any other  capacity  for the Company or for any other legal
entity.

     (i) The Rights  Agent may execute and  exercise any of the rights or powers
hereby vested in it or perform any duty hereunder either itself or by or through
its  attorneys  or  agents,  and the  Rights  Agent  will not be  answerable  or
accountable for any act, default, neglect or misconduct of any such attorneys or
agents or for any loss to the  Company  resulting  from any such  act,  default,
neglect or misconduct,  provided  reasonable care was exercised in the selection
and continued employment thereof.

     4.4 Change of Rights  Agent.  The Rights Agent may resign and be discharged
from its duties under this Agreement upon 90 days' notice (or such lesser notice
as is  acceptable  to the Company) in writing  mailed to the Company and to each
transfer  agent of Common  Stock by  registered  or certified  mail,  and to the
holders of the Rights in accordance with Section 5.9. The Company may remove the
Rights Agent upon 30 days' notice in writing,  mailed to the Rights Agent and to
each transfer agent of the Common Stock by registered or certified  mail, and to
the holders of the Rights in  accordance  with  Section 5.9. If the Rights Agent
should resign or be removed or otherwise become incapable of acting, the Company
will appoint a successor to the Rights Agent.  If the Company fails to make such
appointment  within a period of 30 days after such  removal or after it has been
notified  in writing of such  resignation  or  incapacity  by the  resigning  or
incapacitated  Rights Agent or by the holder of any Rights  (which holder shall,
with such notice,  submit such holder's Rights Certificate for inspection by the
Company),  then the  holder of any  Rights  may apply to any court of  competent
jurisdiction  for the  appointment of a new Rights Agent.  Any successor  Rights
Agent,  whether  appointed  by the  Company  or by  such  a  court,  shall  be a
corporation  organized and doing business under the laws of the United States

<PAGE>

or any state of the United States,  in good standing,  which is authorized under
such laws to  exercise  the  powers of the  Rights  Agent  contemplated  by this
Agreement  and is  subject to  supervision  or  examination  by federal or state
authority  and  which  has at the  time of its  appointment  as  Rights  Agent a
combined capital and surplus of at least  $50,000,000.  After  appointment,  the
successor Rights Agent will be vested with the same powers,  rights,  duties and
responsibilities  as if it had been  originally  named as Rights  Agent  without
further act or deed; but the predecessor Rights Agent shall deliver and transfer
to the successor Rights Agent any property at the time held by it hereunder, and
execute and deliver any further assurance, conveyance, act or deed necessary for
the purpose.  Not later than the  effective  date of any such  appointment,  the
Company will file notice  thereof in writing with the  predecessor  Rights Agent
and each  transfer  agent of the  Common  Stock,  and mail a notice  thereof  in
writing to the holders of the Rights. Failure to give any notice provided for in
this Section 4.4, however, or any defect therein,  shall not affect the legality
or validity of the resignation or removal of the Rights Agent or the appointment
of the successor Rights Agent, as the case may be.

                                    ARTICLE V

                                  MISCELLANEOUS

     5.1  Redemption.  (a) The Board of  Directors  of the  Company  may, at its
option, at any time prior to the Flip-in Date, elect to redeem all (but not less
than all) the then  outstanding  Rights at the Redemption Price and the Company,
at its option,  may pay the Redemption  Price either in cash or shares of Common
Stock or other  securities of the Company  deemed by the Board of Directors,  in
the exercise of its sole  discretion,  to be at least equivalent in value to the
Redemption  Price.  

<PAGE>

     (b)  Immediately  upon the action of the Board of  Directors of the Company
electing to redeem the Rights (or, if the  resolution  of the Board of Directors
electing to redeem the Rights states that the  redemption  will not be effective
until the occurrence of a specified future time or event, upon the occurrence of
such future time or event),  without any further  action and without any notice,
the right to exercise the Rights will  terminate and each Right will  thereafter
represent only the right to receive the Redemption  Price in cash or securities,
as determined by the Board of Directors. Promptly after the Rights are redeemed,
the Company  shall give notice of such  redemption  to the Rights  Agent and the
holders of the then outstanding Rights by mailing such notice in accordance with
Section 5.9. 

     5.2  Expiration.  The  Rights  and  this  Agreement  shall  expire  at  the
Expiration  Time and no Person shall have any rights  pursuant to this Agreement
or any Right after the Expiration Time,  except,  if the Rights are exchanged or
redeemed, as provided in Section 3.1 or 5.1 hereof, respectively.

     5.3  Issuance  of  New  Rights  Certificates.  Notwithstanding  any  of the
provisions of this Agreement or of the Rights to the contrary,  the Company may,
at its option,  issue new Rights Certificates  evidencing Rights in such form as
may be approved by its Board of Directors to reflect any adjustment or change in
the  number or kind or class of shares of stock  purchasable  upon  exercise  of
Rights made in accordance with the provisions of this Agreement. In addition, in
connection  with the  issuance or sale of shares of Common  Stock by the Company
following the Separation  Time and prior to the Expiration  Time pursuant to the
terms of securities  convertible or redeemable into shares of Common Stock or to
options,  in each case  issued or  granted  prior to,  and  outstanding  at, the
Separation Time, the Company shall issue to the holders of such shares of Common
Stock,  Rights  Certificates  representing  the appropriate  

<PAGE>

number of Rights  in  connection  with the  issuance  or sale of such  shares of
Common Stock;  provided,  however,  in each case, (i) no such Rights Certificate
shall be issued,  if, and to the extent  that,  the Company  shall be advised by
counsel that such issuance would create a significant  risk of material  adverse
tax  consequences  to  the  Company  or  to  the  Person  to  whom  such  Rights
Certificates would be issued,  (ii) no such Rights  Certificates shall be issued
if, and to the extent that,  appropriate  adjustment  shall have  otherwise been
made in lieu of the  issuance  thereof,  and (iii)  the  Company  shall  have no
obligation  to  distribute  Rights  Certificates  to  any  Acquiring  Person  or
Affiliate or Associate of an Acquiring  Person or any  transferee  of any of the
foregoing.

     5.4 Supplements  and Amendments.  The Company and the Rights Agent may from
time to time  supplement  or amend this  Agreement  without the  approval of any
holders of Rights (i) prior to the Flip-in  Date,  in any respect and (ii) on or
after the Flip-in Date, to make any changes that the Company may deem  necessary
or desirable and which shall not  materially  adversely  affect the interests of
the holders of Rights  generally or in order to cure any ambiguity or to correct
or supplement any provision  contained herein which may be inconsistent with any
other  provisions  herein or  otherwise  defective.  The Rights  Agent will duly
execute and deliver any supplement or amendment  hereto requested by the Company
which satisfies the terms of the preceding  sentence. 


     5.5  Fractional  Shares.  If the Company  elects not to issue  certificates
representing  fractional  shares upon  exercise  or  redemption  of Rights,  the
Company  shall,  in  lieu  thereof,  in the  sole  discretion  of the  Board  of
Directors,  either (a) evidence such  fractional  shares by depositary  receipts
issued pursuant to an appropriate agreement between the Company and a depositary
selected by it,  providing  that each holder of a depositary  receipt shall have
all of the

<PAGE>

rights,  privileges and  preferences to which such holder would be entitled as a
beneficial owner of such fractional  share, or (b) pay to the registered  holder
of such Rights the appropriate fraction of the Market Price per share in cash.

     5.6 Rights of Action.  Subject  to the terms of this  Agreement  (including
Sections 3.1(b) and 5.14), rights of action in respect of this Agreement,  other
than  rights of action  vested  solely in the  Rights  Agent,  are vested in the
respective  holders of the  Rights;  and any holder of any  Rights,  without the
consent of the Rights Agent or of the holder of any other  Rights,  may, on such
holder's  own behalf and for such  holder's own benefit and the benefit of other
holders of Rights,  enforce,  and may institute and maintain any suit, action or
proceeding against the Company to enforce,  or otherwise act in respect of, such
holder's right to exercise such holder's  Rights in the manner  provided in such
holder's  Rights  Certificate  and  in  this  Agreement.  Without  limiting  the
foregoing or any remedies available to the holders of Rights, it is specifically
acknowledged that the holders of Rights would not have an adequate remedy at law
for any breach of this Agreement and will be entitled to specific performance of
the  obligations  under,  and  injunctive  relief  against  actual or threatened
violations of, the obligations of any Person subject to this Agreement.


     5.7 Holder of Rights Not Deemed a Stockholder.  No holder,  as such, of any
Rights shall be entitled to vote, receive dividends or be deemed for any purpose
the holder of shares or any other  securities  which may at any time be issuable
on the exercise of such Rights,  nor shall anything  contained  herein or in any
Rights  Certificate  be  construed  to confer upon the holder of any Rights,  as
such, any of the rights of a stockholder of the Company or any right to vote for
the election of directors or upon any matter  submitted to  stockholders  at any
meeting thereof,  or to give or withhold consent to any corporate  action, or to
receive notice of meetings

<PAGE>

or other  actions  affecting  stockholders  (except as  provided  in Section 5.8
hereof),  or to receive dividends or subscription  rights,  or otherwise,  until
such Rights  shall have been  exercised  or  exchanged  in  accordance  with the
provisions  hereof.  

5.8 Notice of Proposed  Actions.  In case the Company shall
propose after the Separation Time and prior to the Expiration Time (i) to effect
or permit a Flip-over  Transaction  or Event or (ii) to effect the  liquidation,
dissolution  or winding up of the Company,  then, in each such case, the Company
shall give to each holder of a Right, in accordance  with Section 5.9 hereof,  a
notice of such  proposed  action,  which  shall  specify  the date on which such
Flip-over Transaction or Event,  liquidation,  dissolution,  or winding up is to
take place, and such notice shall be so given at least 20 Business Days prior to
the date of the taking of such proposed action. 

     5.9 Notices. Notices or demands authorized or required by this Agreement to
be given or made by the Rights Agent or by the holder of any Rights to or on the
Company shall be sufficiently  given or made if delivered or sent by first-class
mail, postage prepaid, addressed (until another address is filed in writing with
the Rights Agent) as follows:


                         Barringer  Technologies  Inc. 
                         219 South Street 
                         Murray Hill, NJ 07974  
                         Attention:  Secretary

Any notice or demand  authorized  or required by this  Agreement  to be given or
made by the  Company or by the  holder of any  Rights to or on the Rights  Agent
shall be  sufficiently  given or made if delivered or sent by first-class  mail,
postage  prepaid,  addressed (until another address is filed in writing with the
Company) as follows:

                          American Stock Transfer & Trust Company
                          40 Wall Street
                          New York, New York  10005
                          Attention:  Corporate Trust Department

<PAGE>

Notices or demands  authorized or required by this Agreement to be given or made
by the  Company or the Rights  Agent to or on the holder of any Rights  shall be
sufficiently  given or made if delivered or sent by  first-class  mail,  postage
prepaid,  addressed  to such  holder at the address of such holder as it appears
upon the registry books of the Rights Agent or, prior to the Separation Time, on
the registry books of the transfer agent for the Common Stock.  Any notice which
is mailed in the manner herein  provided  shall be deemed given,  whether or not
the holder receives the notice.

     5.10  Suspension  of  Exercisability.   To  the  extent  that  the  Company
determines  in good faith that some  action  will or need be taken  pursuant  to
Section 3.1 or to comply with federal or state  securities laws, the Company may
suspend the  exercisability  of the Rights for a  reasonable  period in order to
take such action or comply with such laws. In the event of any such  suspension,
the Company shall issue as promptly as practicable a public announcement stating
that the  exercisability or  exchangeability  of the Rights has been temporarily
suspended. Notice thereof pursuant to Section 5.9 shall not be required.

     Failure to give a notice pursuant to the provisions of this Agreement shall
not affect the validity of any action taken hereunder.

     5.11 Costs of  Enforcement.  The Company  agrees that if the Company or any
other Person the  securities  of which are  purchasable  upon exercise of Rights
fails to fulfill any of its  obligations  pursuant to this  Agreement,  then the
Company or such Person will reimburse the holder of any Rights for the costs and
expenses  (including  legal fees)  incurred by such holder in actions to enforce
such holder's rights pursuant to any Rights or this Agreement.

<PAGE>

     5.12  Successors.  All the covenants and provisions of this Agreement by or
for the benefit of the  Company or the Rights  Agent shall bind and inure to the
benefit of their respective successors and assigns hereunder.

     5.13  Benefits  of this  Agreement.  Nothing  in this  Agreement  shall  be
construed to give to any Person other than the Company, the Rights Agent and the
holders of the Rights any legal or equitable  right,  remedy or claim under this
Agreement and this Agreement shall be for the sole and exclusive  benefit of the
Company, the Rights Agent and the holders of the Rights.

     5.14 Determination and Actions by the Board of Directors, etc. The Board of
Directors  of the  Company  shall  have the  exclusive  power and  authority  to
administer  this  Agreement  and to exercise all rights and powers  specifically
granted to the Board or to the  Company,  or as may be necessary or advisable in
the administration of this Agreement,  including,  without limitation, the right
and power to (i)  interpret the  provisions of this  Agreement and (ii) make all
determinations  deemed  necessary or advisable  for the  administration  of this
Agreement.  All such actions,  calculations,  interpretations and determinations
(including,  for purposes of clause (y) below, all omissions with respect to the
foregoing)  which  are done or made by the  Board in good  faith,  shall  (x) be
final,  conclusive and binding on the Company,  the Rights Agent, the holders of
the Rights and all other parties,  and (y) not subject the Board of Directors of
the Company to any  liability  to the holders of the  Rights.

     5.15  Descriptive   Headings.   Descriptive   headings  appear  herein  for
convenience  only and shall not control or affect the meaning or construction of
any of the provisions hereof.

     5.16 Governing Law. THIS AGREEMENT AND EACH RIGHT ISSUED HEREUNDER SHALL BE
DEEMED TO BE A CONTRACT MADE UNDER THE LAWS OF 

<PAGE>

THE STATE OF DELAWARE AND FOR ALL PURPOSES SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE  WITH THE LAWS OF SUCH STATE  APPLICABLE  TO CONTRACTS TO BE MADE AND
PERFORMED ENTIRELY WITHIN SUCH STATE.

     5.17  Counterparts.  This  Agreement  may  be  executed  in any  number  of
counterparts and each of such  counterparts  shall for all purposes be deemed to
be an original,  and all such counterparts shall together constitute but one and
the same instrument.

     5.18  Severability.  If any term or  provision  hereof  or the  application
thereof to any circumstance  shall, in any  jurisdiction  and to any extent,  be
invalid or unenforceable, such term or provision shall be ineffective as to such
jurisdiction  to the  extent  of such  invalidity  or  unenforceability  without
invalidating  or rendering  unenforceable  the  remaining  terms and  provisions
hereof or the application of such term or provision to circumstances  other than
those as to which it is held invalid or unenforceable.

<PAGE>


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


                                          BARRINGER TECHNOLOGIES INC.


                                          By:    /s/ Stanley S. Binder
                                          Name:  Stanley S. Binder
                                          Title: Chairman of the Board and
                                                 Chief Executive Officer


                                          AMERICAN STOCK TRANSFER & 
                                             TRUST COMPANY


                                          By:    /s/ Herbert J. Lemmer
                                          Name:  Herbert J. Lemmer
                                          Title: Vice President


<PAGE>

                                                                   EXHIBIT A

                   [Form of Rights Certificate]


Certificate No. W-                                               _______ Rights


          THE  RIGHTS  ARE  SUBJECT TO  REDEMPTION  OR  MANDATORY
          EXCHANGE,  AT THE OPTION OF THE  COMPANY,  ON THE TERMS
          SET FORTH IN THE RIGHTS AGREEMENT.  RIGHTS BENEFICIALLY
          OWNED BY ACQUIRING  PERSONS OR AFFILIATES OR ASSOCIATES
          THEREOF  (AS  SUCH  TERMS  ARE  DEFINED  IN THE  RIGHTS
          AGREEMENT) OR  TRANSFEREES OF ANY OF THE FOREGOING WILL
          BE VOID.


                               Rights Certificate


                           BARRINGER TECHNOLOGIES INC.


     This certifies that  ____________________,  or registered  assigns,  is the
registered  holder  of the  number  of Rights  set  forth  above,  each of which
entitles the registered  holder  thereof,  subject to the terms,  provisions and
conditions of the Stockholder  Protection Rights  Agreement,  dated as of August
26,  1998 (as  amended  from  time to time,  the  "Rights  Agreement"),  between
Barringer  Technologies  Inc.,  a  Delaware  corporation  (the  "Company"),  and
American Stock Transfer & Trust Company, a New York corporation, as Rights Agent
(the "Rights Agent",  which term shall include any successor  Rights Agent under
the  Rights  Agreement),  to  purchase  from the  Company  at any time after the
Separation  Time (as such term is defined in the Rights  Agreement) and prior to
the close of business on September 8, 2008,  one  one-hundredth  of a fully paid
share  of  Participating  Preferred  Stock,  par  value  $2.00  per  share  (the
"Preferred  Stock"),  of the Company  (subject to  adjustment as provided in the
Rights 

<PAGE>

Agreement)  at the  Exercise  Price  referred to below,  upon  presentation  and
surrender of this Rights  Certificate with the Form of Election to Exercise duly
executed at the  principal  office of the Rights  Agent in The City of New York.
The Exercise  Price shall  initially be $32.50 per Right and shall be subject to
adjustment in certain events as provided in the Rights Agreement.

     In certain  circumstances  described  in the Rights  Agreement,  the Rights
evidenced  hereby  may  entitle  the  registered   holder  thereof  to  purchase
securities  of an entity  other than the  Company or  securities  of the Company
other than  Preferred  Stock or assets of the  Company,  all as  provided in the
Rights Agreement.

     This  Rights  Certificate  is subject to all of the terms,  provisions  and
conditions of the Rights Agreement,  which terms,  provisions and conditions are
hereby  incorporated  herein by  reference  and made a part  hereof and to which
Rights Agreement  reference is hereby made for a full description of the rights,
limitations  of rights,  obligations,  duties and  immunities  hereunder  of the
Rights Agent, the Company and the holders of the Rights Certificates.  Copies of
the Rights  Agreement are on file at the principal office of the Company and are
available without cost upon written request.

     This Rights Certificate,  with or without other Rights  Certificates,  upon
surrender at the office of the Rights Agent designated for such purpose,  may be
exchanged for another Rights  Certificate or Rights  Certificates  of like tenor
evidencing an aggregate number of Rights equal to the aggregate number of Rights
evidenced by the Rights Certificate or Rights Certificates surrendered.  If this
Rights  Certificate  shall be exercised in part, the registered  holder shall be
entitled to receive, upon surrender hereof, another Rights Certificate or Rights
Certificates for the number of whole Rights not exercised.

<PAGE>

     Subject to the provisions of the Rights Agreement,  each Right evidenced by
this Certificate may be (a) redeemed by the Company under certain circumstances,
at its option,  at a redemption price of $0.01 per Right or (b) exchanged by the
Company  under  certain  circumstances,  at its option,  for one share of Common
Stock or one  one-hundredth  of a share of  Preferred  Stock per Right  (or,  in
certain cases, other securities or assets of the Company),  subject in each case
to adjustment in certain events as provided in the Rights Agreement.

     No holder of this Rights Certificate, as such, shall be entitled to vote or
receive  dividends  or be deemed for any  purpose  the holder of any  securities
which may at any time be issuable on the  exercise  hereof,  nor shall  anything
contained  in the Rights  Agreement  or herein be  construed  to confer upon the
holder hereof, as such, any of the rights of a stockholder of the Company or any
right to vote for the  election of  directors  or upon any matter  submitted  to
stockholders  at any  meeting  thereof,  or to give or  withhold  consent to any
corporate  action,  or to receive notice of meetings or other actions  affecting
stockholders  (except  as  provided  in the  Rights  Agreement),  or to  receive
dividends or subscription  rights,  or otherwise,  until the Rights evidenced by
this Rights  Certificate  shall have been  exercised or exchanged as provided in
the Rights Agreement.

     This Rights  Certificate  shall not be valid or obligatory  for any purpose
until it shall have been countersigned by the Rights Agent.

<PAGE>

     WITNESS the facsimile  signature of the proper  officers of the Company and
its corporate seal.

Date:  ____________

ATTEST:                                              BARRINGER TECHNOLOGIES INC.


___________________________                          By_________________________
       Secretary

Countersigned:

AMERICAN STOCK TRANSFER & TRUST COMPANY


By____________________________
   Authorized Signature


<PAGE>



                                    [Form of Reverse Side of Rights Certificate]


                               FORM OF ASSIGNMENT

                (To be executed by the registered holder if such
              holder desires to transfer this Rights Certificate.)

     FOR VALUE  RECEIVED  ______________________________________  hereby  sells,
assigns and transfers unto  ____________________________________________________
                              (Please print name
________________________________________________________________________________
                              and address of transferee)

this Rights  Certificate,  together with all right,  title and interest therein,
and does hereby irrevocably constitute and appoint _______________  Attorney, to
transfer the within Rights Certificate on the books of the within-named Company,
with full power of substitution.

Dated:  _______________, ____

     Signature   Guaranteed:               _________________________    
                                           Signature
                                           (Signature must correspond to name as
                                           written upon the face of  this Rights
                                           Certificate    in  every  particular,
                                           without alteration or enlargement or 
                                           any change whatsoever)



     Signatures must be guaranteed by an eligible guarantor  institution (banks,
stockbrokers, savings and loan associations and credit unions with membership in
an  approved  signature  guarantee  Medallion  program),  pursuant  to SEC  Rule
17Ad-15.


<PAGE>


- --------------------------------------------------------------------------------
                            (To be completed if true)

The undersigned hereby represents,  for the benefit of all holders of Rights and
shares of Common Stock, that the Rights evidenced by this Rights Certificate are
not, and, to the  knowledge of the  undersigned,  have never been,  Beneficially
Owned by an Acquiring Person or an Affiliate or Associate thereof (as defined in
the Rights Agreement).

                                                    __________________________
                                                         Signature

- --------------------------------------------------------------------------------

                                     NOTICE

     In the  event  the  certification  set  forth  above  is not  completed  in
connection  with a purported  assignment,  the Company will deem the  Beneficial
Owner of the  Rights  evidenced  by the  enclosed  Rights  Certificate  to be an
Acquiring Person or an Affiliate or Associate  thereof (as defined in the Rights
Agreement) or a transferee of any of the foregoing and accordingly will deem the
Rights  evidenced by such Rights  Certificate to be void and not transferable or
exercisable.


<PAGE>

                                   [To be attached to each Rights Certificate]

                          FORM OF ELECTION TO EXERCISE

                      (To be executed if holder desires to
                        exercise the Rights Certificate.)

TO:  BARRINGER TECHNOLOGIES INC.

     The     undersigned     hereby     irrevocably     elects    to    exercise
_______________________   whole  Rights   represented  by  the  attached  Rights
Certificate  to purchase the shares of  Participating  Preferred  Stock issuable
upon the exercise of such Rights and requests that  certificates for such shares
be issued in the name of:


                  ___________________________________
                  Address:
                  ___________________________________
                  Social Security or Other Taxpayer
                  Identification Number:

If such number of Rights  shall not be all the Rights  evidenced  by this Rights
Certificate,  a new Rights  Certificate  for the balance of such Rights shall be
registered in the name of and delivered to:

                  ___________________________________
                  Address:
                  ___________________________________
                  Social Security or Other Taxpayer
                  Identification Number:

Dated:  _______________, ____



Signature Guaranteed:                    _________________________
                                         Signature
                                         (Signature  must  correspond to name as
                                         written upon the  face of the  attached
                                         Rights Certificate in every particular,
                                         without  alteration or  enlargement  or
                                         any change whatsoever)

<PAGE>

          Signatures  must be  guaranteed by an eligible  guarantor  institution
(banks,  stockbrokers,  savings  and loan  associations  and credit  unions with
membership in an approved signature guarantee  Medallion  program),  pursuant to
SEC Rule 17Ad-15.


________________________________________________________________________________
                            (To be completed if true)

          The undersigned hereby  represents,  for the benefit of all holders of
Rights and shares of Common  Stock,  that the Rights  evidenced  by the attached
Rights Certificate are not, and, to the knowledge of the undersigned, have never
been,  Beneficially  Owned by an  Acquiring  Person or an Affiliate or Associate
thereof (as defined in the Rights Agreement).


                                                              __________________
                                                              Signature

________________________________________________________________________________

                                     NOTICE

          In the event the  certification  set forth above is not  completed  in
connection with a purported exercise, the Company will deem the Beneficial Owner
of the Rights  evidenced by the attached  Rights  Certificate to be an Acquiring
Person or an Affiliate or Associate thereof (as defined in the Rights Agreement)
or a transferee  of any of the foregoing  and  accordingly  will deem the Rights
evidenced  by such  Rights  Certificate  to be  void  and  not  transferable  or
exercisable.



<PAGE>



                                                                EXHIBIT B

                       FORM OF CERTIFICATE OF DESIGNATION
                      AND TERMS OF PARTICIPATING PREFERRED
                      STOCK OF BARRINGER TECHNOLOGIES INC.


                     Pursuant to Section 151 of the General
                    Corporation Law of the State of Delaware


          We, the undersigned, _______________________ and ____________________,
the   _______________,   and   _______________,   respectively,   of   Barringer
Technologies Inc., a Delaware corporation (the "Corporation"), do hereby certify
as follows:  

          Pursuant to authority  granted by Article FOURTH of the Certificate of
Incorporation  of the  Corporation,  as  amended,  and in  accordance  with  the
provisions  of  Section  151 of the  General  Corporation  Law of the  State  of
Delaware,  the Board of Directors of the  Corporation  has adopted the following
resolutions  fixing the designation and certain terms,  powers,  preferences and
other rights of a new series of the  Corporation's  Preferred  Stock,  par value
$2.00 per  share,  and  certain  qualifications,  limitations  and  restrictions
thereon: 

          RESOLVED,  that  there is hereby  established  a series  of  Preferred
     Stock, par value $2.00 per share, of the  Corporation,  and the designation
     and certain terms,  powers,  preferences  and other rights of the shares of
     such  series,  and certain  qualifications,  limitations  and  restrictions
     thereon, are hereby fixed as follows:

          (i) The  distinctive  serial  designation  of  this  series  shall  be
          "Participating  Preferred Stock"  (hereinafter  called "this Series").
          Each share of this Series shall be identical in all respects  with the
          other  shares of this  Series  except  as to the dates  from and after
          which dividends thereon shall be cumulative.

          (ii) The number of shares in this Series shall  initially be _______,*
          which number may from time to time be increased or decreased  (but not
          below the number then  outstanding) by the Board of Directors.  Shares
          of this Series  purchased by the  


- --------
* Insert a number  equivalent  to 1/100 of the sum of the number of  outstanding
shares of Common Stock,  reserved conversion shares (if any), and stock options,
rounded up to a round number.



<PAGE>

          Corporation  shall be  cancelled  and shall revert to  authorized  but
          unissued shares of Preferred Stock  undesignated as to series.  Shares
          of this Series may be issued in fractional  shares,  which  fractional
          shares  shall  entitle  the holder,  in  proportion  to such  holder's
          fractional  share,  to all rights of a holder of a whole share of this
          Series.

          (iii) The holders of full or fractional shares of this Series shall be
          entitled to receive,  when and as declared by the Board of  Directors,
          but only out of funds legally available  therefor,  dividends,  (A) on
          each date that dividends or other distributions  (other than dividends
          or  distributions  payable  in Common  Stock of the  Corporation)  are
          payable  on or in  respect  of  Common  Stock  comprising  part of the
          Reference  Package (as defined below), in an amount per whole share of
          this  Series  equal to the  aggregate  amount  of  dividends  or other
          distributions (other than dividends or distributions payable in Common
          Stock of the  Corporation)  that  would be  payable  on such date to a
          holder  of the  Reference  Package  and (B) on the last day of  March,
          June,  September  and  December  in each year,  in an amount per whole
          share of this  Series  equal to the excess (if any) of $____* over the
          aggregate  dividends  paid per whole share of this  Series  during the
          three month period ending on such last day.  Each such dividend  shall
          be paid to the holders of record of shares of this Series on the date,
          not  exceeding  sixty days  preceding  such  dividend or  distribution
          payment  date,  fixed for the  purpose  by the Board of  Directors  in
          advance  of  payment  of each  particular  dividend  or  distribution.
          Dividends on each full and each fractional  share of this Series shall
          be  cumulative  from  the  date  such  full  or  fractional  share  is
          originally  issued;  provided that any such full or  fractional  share
          originally  issued after a dividend record date and on or prior to the
          dividend  payment date to which such record date relates  shall not be
          entitled to receive the dividend payable on such dividend payment date
          or any amount in respect of the period from such original  issuance to
          such dividend payment date.

                    The term "Reference Package" shall initially mean 100 shares
          of Common Stock, par value $.01  per  share  ("Common Stock"),  of the
          Corporation. In the  event  the  Corporation  shall at any time  after
          the close of business   on  __________,  ____** (A)   declare or pay a
          dividend  on any Common Stock payable in Common  Stock,  (B) subdivide
          any Common Stock or (C) combine any Common Stock into a smaller number
          of shares,  then and in  each  such  case the 


- ---------
* Insert an  amount  equal to 1/4 of 1% of the  Exercise  Price  divided  by the
number of shares of Preferred Stock purchasable upon exercise of one Right.

** For a certificate of designation  relating to shares to be issued pursuant to
Section  2.3  of  the  Rights  Agreement,  insert  the  Separation  Time.  For a
certificate of designation  relating to shares to be issued  pursuant to Section
3.1(d) of the Rights Agreement, insert the Flip-in Date.



          Reference  Package  after such event shall be the Common  Stock that a
          holder of the Reference Package  immediately prior to such event would
          hold thereafter as a result thereof.

                    Holders of shares  of  this  Series  shall  not be  entitled
          to any  dividends, whether payable  in cash,  property  or  stock,  in
          excess of fullcumulative dividends, as herein provided on this Series.

                    So long as any shares of this  Series  are  outstanding,  no
          dividend (other than a dividend in Common  Stock or in any other stock
          ranking junior  to  this Series as to dividends and upon  liquidation)
          shall  be  declared  or  paid  or  set  aside  for  payment  or  other
          distribution  declared  or  made  upon  the  Common  Stock or upon any
          other  stock  ranking  junior  to  this Series as to dividends or upon
          liquidation,  nor shall any  Common  Stock  nor any other stock of the
          Corporation ranking junior to or on  a  parity  with this Series as to
          dividends  or  upon  liquidation  be  redeemed, purchased or otherwise
          acquired for  any  consideration  (or  any   moneys be paid to or made
          available  for a sinking  fund for the redemption of any shares of any
          such stock) by the Corporation (except by conversion  into or exchange
          for  stock of the  Corporation  ranking junior  to  this  Series as to
          dividends  and upon  liquidation),  unless, in  each  case,  the  full
          cumulative dividends (including the  dividend to be due  upon  payment
          of   such  dividend,  distribution,  redemption,  purchase   or  other
          acquisition)  on all  outstanding  shares  of this Series  shall  have
          been, or shall contemporaneously be, paid.

          (iv) In the event of any merger,  consolidation,  reclassification  or
          other  transaction  in which the shares of Common Stock are  exchanged
          for or changed into other stock or  securities,  cash and/or any other
          property, then in any such case the shares of this Series shall at the
          same time be  similarly  exchanged  or  changed in an amount per whole
          share equal to the aggregate amount of stock, securities,  cash and/or
          any  other  property  (payable  in kind),  as the case may be,  that a
          holder of the  Reference  Package  would be  entitled  to receive as a
          result of such transaction.

          (v) In the event of any liquidation,  dissolution or winding up of the
          affairs of the  Corporation,  whether  voluntary or  involuntary,  the
          holders  of full  and  fractional  shares  of  this  Series  shall  be
          entitled,  before any  distribution  or payment is made on any date to
          the holders of the Common Stock or any other stock of the  Corporation
          ranking junior to this Series upon liquidation,  to be paid in full an
          amount  per whole  share of this  Series  equal to the  greater of (A)
          $__________*  or  (B)  the  aggregate  amount  distributed  or  to  be
          distributed  prior to such date in connection  with such  liquidation,
          dissolution  or winding up to a holder of the 

<PAGE>

          Reference Package (such greater amount being  hereinafter  referred to
          as the "Liquidation  Preference"),  together with accrued dividends to
          such distribution or payment date,  whether or not earned or declared.
          If such payment  shall have been made in full to all holders of shares
          of this  Series,  the  holders of shares of this  Series as such shall
          have  no  right  or  claim  to  any  of the  remaining  assets  of the
          Corporation.

                    In the event the  assets of the  Corporation  available  for
          distribution  to the  holders  of  shares  of  this  Series  upon  any
          liquidation,  dissolution  or winding up of the  Corporation,  whether
          voluntary or  involuntary,  shall be  insufficient  to pay in full all
          amounts to which  such  holders  are  entitled  pursuant  to the first
          paragraph of this Section (v), no such  distribution  shall be made on
          account of any shares of any other class or series of Preferred  Stock
          ranking  on a  parity  with  the  shares  of  this  Series  upon  such
          liquidation,   dissolution   or   winding   up  unless   proportionate
          distributive  amounts  shall be paid on  account of the shares of this
          Series,  ratably in proportion to the full  distributable  amounts for
          which holders of all such parity shares are respectively entitled upon
          such liquidation, dissolution or winding up.

                    Upon  the  liquidation,  dissolution  or  winding  up of the
          Corporation,  the holders of shares of this  Series  then  outstanding
          shall  be  entitled  to be  paid  out of  assets  of  the  Corporation
          available for  distribution to its  stockholders  all amounts to which
          such  holders are  entitled  pursuant to the first  paragraph  of this
          Section (v) before any payment  shall be made to the holders of Common
          Stock  or any  other  stock of the  Corporation  ranking  junior  upon
          liquidation to this Series.

                    For the purposes of this Section (v), the  consolidation  or
          merger of, or binding  share  exchange  by, the  Corporation  with any
          other  corporation  shall not be deemed to  constitute a  liquidation,
          dissolution or winding up of the Corporation.

          (vi) The shares of this Series shall not be redeemable.

          (vii)  In  addition  to any  other  vote or  consent  of  stockholders
          required by law or by the Certificate of Incorporation, as amended, of
          the Corporation, each whole share of this Series shall, on any matter,
          vote as a class with any other  capital stock  comprising  part of the
          Reference  Package and voting on such matter and shall have the number
          of votes thereon that a holder of the Reference Package would have.


* Insert an amount  equal to 100  times the  Exercise  Price in effect as of the
Separation Time.


<PAGE>

          IN WITNESS  WHEREOF,  the  undersigned  have signed and attested  this
certificate on the ____ day of _____________, _______.

                                                            ____________________


Attest:


_____________________






FOR IMMEDIATE RELEASE
         CONTACT: Cheryl Schneider/Tessa Lavender
Press: Michael McMullan
Morgen-Walke Associates, Inc.
(212) 850-5600

BARRINGER TECHNOLOGIES INC. ADOPTS A STOCKHOLDER PROTECTION RIGHTS PLAN

Murray Hill, NJ, August 26, 1998 - Barringer  Technologies Inc., (Nasdaq:  BARR,
BARRW),  announced  today that its Board of Directors  has adopted a Stockholder
Protection  Rights  Plan  ("Plan").  Pursuant  to the Plan,  one  Right  will be
distributed as a dividend on each  outstanding  share of Barringer Common Stock.
The  dividend  will be paid on September  9, 1998 to  stockholders  of record on
September 8, 1998.

The  Rights  are not being  distributed  in  response  to any  effort to acquire
control  of the  Company  and the  Board of  Directors  is not aware of any such
effort. Rather, it was adopted to assure that all Barringer stockholders receive
fair and equal  treatment in the event of any  proposed  takeover of the Company
and  to  guard  against  partial  tender  offers,   squeeze-outs,   open  market
accumulations  and other tactics  intended to gain control of Barringer  without
paying all stockholders a fair control premium.

The Rights will be  exercisable  only if a person or a group has acquired 15% or
more of Barringer's Common Stock or commences a tender offer that will result in
such person or group owning 15% or more of Barringer's  Common Stock, and, until
that time, the Rights will be evidenced by the Common Stock  certificates,  will
automatically  trade  with  the  Common  Stock,  and  will  not be  exercisable.
Thereafter, separate Rights certificates will be distributed and each Right will
entitle its holder to purchase Participating Preferred Stock having economic and
voting terms  equivalent  to one share of Common Stock for an exercise  price of
$32.50.

Among its other provisions, the Plan provides that if a person or group acquires
15% or more of Barringer's  outstanding  Common Stock (an  "Acquiring  Person"),
each Right  (other than Rights  beneficially  owned by any  Acquiring  Person or
transferees  thereof,  which  Rights  become  void) will more entitle its holder
(other than such person or members of such  group) to  purchase,  at the Right's
then-current  exercise price, a number of shares of Barringer's Common Stock (or
Participating  Preferred  Stock) having a market value of twice such price.  The
Rights may be  redeemed by the Board of  Directors  for $0.01 per Right prior to
the occurrence of such event.

Additionally,  if  after  an  Acquiring  Person  controls  Barringer's  Board of
Directors,  Barringer is involved in certain business combinations or sells more
than 50% of its assets or earning  power (or has entered an  agreement to do any
of the  foregoing),  each Right will  entitle  its  holder to  purchase,  at the
Right's  then-current  exercise price, a number of shares of common stock of the
Acquiring Person having a market value of twice such price.

If any person or group acquires between 15% and 50% of Barringer's Common Stock,
Barringer's  Board of  Directors  may,  at its  option,  exchange  one  share of
Barringer  Common  Stock  (or  one  one-hundredth  of a share  of  Participating
Preferred Stock) for each Right.

A letter to stockholders regarding the Rights Agreement and a summary of certain
terms of the Rights Agreement will be mailed to stockholders.

In connection with the adoption of the Rights Agreement,  the Board of Directors
of Barringer also amended certain provisions of Barringer's Amended and Restated
By-laws.  Among other things, special meetings of Barringer stockholders now may
only be called by the Chairman of the Board, the Chief Executive Officer or by a
majority of the Board of Directors, and stockholders will be required to provide
advance notice of any proposals or director nominations to be made at annual and
special meetings of stockholders.

Headquartered  in Murray  Hill,  New  Jersey,  Barringer  Technologies  Inc.  is
principally  engaged  in  developing,   manufacturing,  and  marketing  of  high
technology  products for drug and  explosive  detection  and other  security and
industrial  applications.  The  IONSCAN[R] is the  Company's  proprietary  trace
particle drug and explosive detection unit.




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