Exhibit 10.9

                              CONSULTING AGREEMENT

     AGREEMENT,  dated as of June 2, 1999,  by and  between  TECH  LABORATORIES,
INC.,  a New Jersey  corporation  with  offices  at 955  Belmont  Avenue,  North
Haledon,  New Jersey  07608 (the  "Company")  and COBY  CAPITAL  CORPORATION,  a
Connecticut  corporation  with offices at 1055 Warlington  Blvd.,  Stanford,  CT
06901  ("Consultant").  This  Consulting  Agreement  between  Consultant and the
Company shall be hereinafter referred to as the "Agreement."

                              W I T N E S S E T H:

     WHEREAS,  the Company is engaged in the business of developing,  acquiring,
marketing and selling various products including,  among other things,  security
and   anti-terrorist   products  and   communication/networking   products  (the
"Products"); and

     WHEREAS,  the  Company  wishes  to engage  Consultant  to  provide  certain
financial and business development services; and

     WHEREAS,  Consultant  has  experience in providing the services the Company
wishes to have performed; and

     WHEREAS,  the  Company  and  Consultant  mutually  desire to enter  into an
Consulting Agreement with respect to Consultant's engagement by the Company;

     NOW, THEREFORE,  in consideration of the mutual covenants herein contained,
and for other good and  valuable  consideration  the  receipt of which is hereby
acknowledged, the Company and Consultant hereby agree as follows:

     1.   Engagement of Consultant.

          (a) The Company hereby engages Consultant to provide certain services,
     as described in Section 2.  Consultant  hereby accepts such engagement with
     the Company upon the terms and conditions  hereinafter set forth and agrees
     to perform the  services.  The parties agree that the  Consultant  shall be
     engaged by the Company as an independent  contractor on a consulting basis,
     and neither  Consultant,  nor any employee of Consultant shall be deemed an
     employee of the Company.

          (b)  Consultant  acknowledges  that  Company  is  entering  into  this
     Agreement in reliance upon the continued  employment  by  Consultant,  on a
     full-time basis, of Scott Coby ("Coby"). Consultant agrees that the failure
     of Coby to be  employed  by  Consultant,  including  by  reason of death or
     disability,  on a  full-time  basis  at any  time  during  the term of this
     Agreement  shall be deemed an  attempted  assignment  of this  Agreement by
     Consultant and subject to the provisions of Section 14(e) hereof.

     2. Services To Be Rendered.

          (a) During the term of this Agreement, Consultant shall furnish to the
     Company advice and recommendations with respect to the business and affairs
     of the Company in general,  and in connection  with the  development of the
     Company's  business  plan,  particularly  with  respect  to  the  financial
     requirements  of the Company in the  development of its business and in the
     negotiation and securing the necessary capital,  including debt and equity,
     and the marketing of the Company's  Products.  The Company shall, from time
     to time, request upon reasonable notice those services from Consultant that





     shall be necessary in the sole discretion of the Company's management.  The
     services  shall  also  include   advising  and  assisting  the  Company  in
     connection with (i) the development and  implementation of a marketing plan
     for the Products and (ii) customer development.

          (b)  Consultant  shall perform such services for the Company and other
     entities now or hereafter  affiliated  with the  Company.  Consultant  will
     devote  that amount of its time and effort to the affairs of the Company as
     is reasonably necessary to perform the services.

          (c) Consultant  shall perform the services at the  Consultant's or the
     Company's offices and, if applicable,  the business  locations of customers
     and  potential  customers  or at  such  other  location  as  is  reasonably
     necessary.

     3. Term.

          (a) The term of this Agreement shall commence as of May ___, 1999, and
     shall  continue to and including May ___, 2001 (the  "Consulting  Period"),
     unless sooner terminated as hereinafter provided. The Consulting Period may
     be  extended  by the  mutual  agreement  of  the  Company  and  Consultant;
     provided,  however,  notwithstanding  anything  to  the  contrary  in  this
     Agreement,  this Agreement shall be automatically extended for one (1) year
     (the "Extension  Period") so long as neither Consultant nor the Company has
     provided written notice to the other party that this Agreement is not being
     renewed.  Such notice must be sent at least 90 days prior to the end of the
     Consulting Period.  Notwithstanding  anything herein to the contrary,  this
     Agreement  shall terminate in the event the Company has not raised $200,000
     in equity financing to fund its operations by June 1, 1999.

          (b) This Agreement may be terminated by Company, without notice, if at
     any time:

               i)   Consultant   commits  a  breach  of  any  of  the   material
                    obligations  under this  Agreement  and such  breach has not
                    been cured  within  fifteen  (15) days of written  notice of
                    such breach;

               ii)  Consultant  or its  owner  or  any  employee  of  Consultant
                    performing  service for Company on behalf of Consultant  has
                    been  convicted  of  an  indictable   offence  resulting  in
                    incarceration  or  has  improperly  enriched  itself  at the
                    expense  of  Company  or has  committed  an  act  evidencing
                    dishonesty, including, without limitation, an act of theft;

               iii) Consultant becomes bankrupt or in the event that a receiving
                    order (or any analogous  order under any applicable  law) is
                    made  against it or in the event  that it makes any  general
                    disposition  or assignment for the benefit of its respective
                    creditors;

               iv)  The Consultant attempts to assign this Agreement without the
                    consent of the Company.

          (c) Upon the termination of Consultant's engagement, the Company shall
     pay  Consultant  any unpaid  amounts due under this  Agreement for services
     rendered through the date of such termination.

          (d) It is expressly  agreed that  notwithstanding  termination  of the
     Agreement  by  either  party,   for  any  reason  in  an  any  circumstance
     whatsoever, such termination shall be without prejudice to


                                        2



     the rights of the Company,  in relation to, up to and including the date of
     termination;  and the  provisions  of Section 7 respecting  confidentiality
     shall  remain and  continue  in full force and effect  unless and until the
     Company,  in its absolute  discretion,  resolves  otherwise and so notifies
     Consultant in writing.

     4. Compensation

          (a) So long as Consultant performs the services set forth in Section 2
     for the Company and the Company has raised proceeds of at least Two Hundred
     Thousand  Dollars  ($200,000)  on or  before  June  ,  1999  (the  "Interim
     Financing"),  through the sale of its shares of common  stock at a price of
     not less than $2.22 per share, the Company shall issue to Consultant (i) an
     option  exercisable  for four (4) years to  purchase  50,000  shares of its
     common stock at $1.85 per share,  which option (in the form attached hereto
     as Exhibit A) shall vest upon the completion of the Interim Financing,  and
     (ii) an option (in the form attached hereto as Exhibit B) to purchase up to
     200,000 shares of the Company's common stock exercisable for four (4) years
     at $3.50 per  share,  such  option to vest in  increments  of not less than
     25,000 shares,  which vesting shall occur upon the Company's receipt of the
     proceeds  from the sale of its Products of $250,000 or more up to a maximum
     of sales of  $2,000,000  at any time and from time to time  during  the two
     year term of this  Agreement  (such 25,000 shares to increase pro rata with
     sales in excess of $250,000) as a result of Consultant's  efforts.  Options
     shall  continue to vest with  respect to any  proceeds  received  after the
     expiration of the two (2) year term of this Agreement,  which proceeds were
     derived from contracts or firm orders  received by the Company prior to the
     expiration  of the two (2)  year  term of this  Agreement  or from  parties
     introduced by the Consultant for the Company prior to the expiration of the
     two (2) year term as more fully described in Exhibit B.

          (b) The Company shall, as soon as practicable  after the close of each
     calendar  month,  prepare and  deliver to  Consultant  a  statement  of the
     amounts of revenues from the sale of all Products sold due to  Consultant's
     efforts and of the number of shares vested for the reported period.

          (c) If Consultant's engagement is terminated pursuant to Sections 3(a)
     or (b),  or if  Consultant  terminates  its  engagement  voluntarily,  then
     Consultant  shall not be entitled to any  compensation  from and after such
     date of  termination,  except any sales proceeds or the  fulfillment of any
     firm orders generated by Consultant prior to the date of termination  shall
     cause the corresponding portion of the option described above to vest.

     5. Expenses.

     The  Consultant  shall be  solely  responsible  for  paying  any  expenses,
including,   without  limitation,   salaries  and  commissions  of  Consultant's
employees, if any, and expenses for equipment,  supplies and licenses,  incurred
by  Consultant  or its  employees in  connection  with the  performance  of this
Agreement.  The Company shall reimburse  Consultant against appropriate vouchers
or  other  receipts  for  business  expenses  reasonably  incurred  by it in the
performance  of its  duties  pursuant  to the terms  hereof,  provided  that the
Company has previously approved such expenses.

     6. Non-Competition.

          (a) During the period of  Consultant's  engagement  by the Company and
     for a  period  of  one  (1)  year  following  termination  of  Consultant's
     engagement,  other than by reason of the Company's  breach of any provision
     of this Agreement (the "Non-Competition Period"), Consultant agrees that it
     will not, anywhere in the United States,  directly or indirectly enter into
     or  participate  in  (whether  as  owner,  partner,  shareholder,  officer,
     director, salesman,  consultant,  employee or otherwise) any business which
     is in competition with any material business in which the Company or any of
     its subsidiaries may engage


                                       -3-



     after the date hereof,  without having first  obtained the Company's  prior
     written  consent;  provided,  however,  that (a) the  Company  specifically
     acknowledges and agrees that Consultant may own up to 5% of the outstanding
     equity  securities  of any entity  that is subject to the public  reporting
     requirements of the Securities Exchange Act of 1934.

          (b)  Consultant  shall not at any time within a period of one (1) year
     following  the  termination  of its  engagement,  without the prior written
     consent of the Company, directly or indirectly, (i) solicit, request, cause
     or induce any person who is at the time,  or within 12 months prior thereto
     had been, an employee or a consultant  to the Company,  to leave the employ
     of or  terminate  his  relationship  with the  Company or (ii)  solicit the
     employment, engagement or association with, or endeavor to entice away from
     the Company to any business that is competitive  with any of the businesses
     engaged in by the Company during the time that Consultant, any such person.

          (c) Consultant may perform services, including services similar to the
     services it performs for the Company, for other individuals and businesses;
     provided,  however,  that Consultant shall not provide services to entities
     that compete directly with the business of the Company.

     7. Non-Disclosure of Confidential Information.

          (a) Subject in all respects to the provisions of, and as  contemplated
     by,  clause (a) of Section 6 hereof,  Consultant  shall at all times,  both
     during and after the Consulting  Period,  hold in a fiduciary  capacity for
     the benefit of the Company and each of its subsidiaries,  and shall not use
     or disclose or permit the use of the disclosure to any third party, any and
     all trade secrets, information,  knowledge and data not generally known to,
     or easily  obtainable by, the public that it may have learned,  discovered,
     developed,  conceived,  originated or prepared during or as a result of its
     relationship  with the Company or any of its subsidiaries (as a stockholder
     or otherwise) or any predecessor-in-interest to any of the Company's or any
     of its  subsidiaries'  business or assets with  respect to the  operations,
     business,  New  Technology  as  hereinafter  defined,  affairs,   products,
     technology or services of the Company or any of its subsidiaries.

          (b)  Consultant  acknowledges  that any  breach of the  provisions  of
     Sections 6 and 7 hereof can cause  irreparable  harm to the Company and its
     subsidiaries  for which the  Company  and its  subsidiaries  would  have no
     adequate  remedy at law. In the event of a breach or  threatened  breach by
     Consultant  of any of such  provisions,  in  addition  to any and all other
     rights and  remedies it may have under this  Agreement  or  otherwise,  the
     Company or any of its subsidiaries may immediately seek any judicial action
     it deems necessary, including, without limitation,  temporary, preliminary,
     and/or permanent injunctive relief.

     8. Rights to Technology.

          (a) The  property  rights  in and to all  items of New  Technology  as
     defined below herein,  shall be deemed to have been created for the Company
     as work for hire and are and shall be the sole and  exclusive  property  of
     the Company,  and  Consultant  does hereby agree that he will make full and
     prompt  disclosure to the Company of any and all such New  Technology.  For
     the purposes of this Agreement,  the term "New Technology"  shall mean each
     and every invention, discovery and development,  device, design, apparatus,
     practice, method, product, item of know-how, improvement,  process, item of
     technical  knowledge,  formula,  trade secret, trade name and modification,
     whether or not patentable, trademarkable or copyrightable, which were made,
     developed or first reduced to practice by Consultant  (whether acting alone
     or  with  others)  during  the  term  of  its  engagement   hereunder  (the
     "Technology Term"), and which relate primarily to the Company's business.


                                       -4-



          (b) During the Technology  Term, and at any time and from time to time
     thereafter,  Consultant  shall (i) execute all  documents  requested by the
     Company to assign to the  Company all of his right,  title and  interest in
     and to any New  Technology  and to confirm the  complete  ownership  by the
     Company  of such  New  Technology,  (ii)  execute  any  and  all  documents
     requested  by the  Company  for filing  and  prosecuting  applications  for
     patents,  design  patents,  trademarks or copyrights for or with respect to
     the New Technology,  and (iii) render to the Company all assistance that it
     may  request,  including  the giving of  testimony  in any suit,  action or
     proceeding before any court of appropriate jurisdiction, including, but not
     limited  to,  any  governmental  or  quasi-governmental   agency  or  other
     regulatory  body,  in order to obtain,  maintain and protect the  Company's
     rights and ownership interests with respect to the New Technology.

     9. Severability.  In the event of the invalidity or unenforceability of any
one or more  provisions of this Agreement,  such illegality or  unenforceability
shall not affect the validity or  enforceability  of the other provisions hereof
and such other provisions shall be deemed to remain in full force and effect.

     10.  Independent  Status.  Consultant  shall be treated  as an  independent
contractor for all purposes, including employment tax purposes. The Company will
report any payments made to Consultant in accordance  with this Agreement on IRS
Form  1099-MISC.  Consultant  shall report such  payment and pay all  applicable
taxes, including, without limitation,  income, unincorporated business, FICA and
self-employment  taxes,  with respect thereto.  The Company and Consultant agree
that  Consultant  shall not be  considered  or deemed to be an agent,  employee,
joint venturer, or partner of the Company. Consultant shall have no authority to
contract for or bind the Company in any manner and shall not  represent  himself
as an agent of the  Company  except as  authorized  in writing  by the  Company.
Neither  Consultant nor any owner,  officer or employee of Consultant shall have
any status as an employee or any right to the benefits  that the Company  grants
its employees.

     11.  Insurance.  On an annual basis,  Consultant  shall provide the Company
evidence  that  Consultant  has obtained and  maintains  insurance  prior to the
performance of any work under this Agreement.  Such insurance shall include, but
is not limited to, workers'  compensation  insurance applicable to all employees
of Consultant.

     12.  Maintenance of Records.  Consultant shall maintain records as required
and  specified  by the  Company.  It will submit a monthly  invoice for services
rendered on behalf of the Company by it in the  performance  of this  Agreement.
All such records and invoices shall remain the property of the Company.

     13. Indemnification.

          (a) Consultant hereby  indemnifies and holds harmless the Company with
     respect to any liability arising from the negligence or willful  misconduct
     of  Consultant  or its  employees or  representatives.  Consultant,  at its
     expense,  shall  defend  any  claim or legal  proceeding  which is  brought
     against the Company and is within the  foregoing  indemnification,  and pay
     any judgment formally awarded in any such legal  proceeding;  provided that
     the  Company  gives  Consultant  notice of such claim or legal  proceeding,
     furnishes a copy of all documents and  instruments  served upon the Company
     in connection  therewith and reasonably  cooperates with Consultant in such
     defense.

          (b) Company hereby  indemnifies and holds harmless the Consultant with
     respect to any liability arising from the negligence or willful  misconduct
     of Company or its employees or  representatives.  Company,  at its expense,
     shall defend any claim or legal proceeding which is brought


                                       -5-



     against the Consultant and is within the foregoing indemnification, and pay
     any judgment formally awarded in any such legal  proceeding;  provided that
     the  Consultant  gives  Company  notice of such claim or legal  proceeding,
     furnishes  a  copy  of  all  documents  and  instruments  served  upon  the
     Consultant  in  connection  therewith and  reasonably  cooperates  with the
     Company in such defense.

     14. Miscellaneous.

          (a) Nothing in this Agreement  shall be deemed to preclude the Company
     from  obtaining the services of other persons or entities  undertaking  the
     same  or  similar  services  as  those  undertaken  by  Consultant  or from
     independently  developing  or  acquiring  materials  or  programs  that are
     similar  to,  or  competitive   with,  the  services  provided  under  this
     Agreement.

          (b) This Agreement  supersedes any prior agreements or understandings,
     oral or written,  between the parties  hereto and  represents  their entire
     understanding and agreement with respect to the subject matter hereof. This
     Agreement can be amended, supplemented or changed, and any provision hereof
     can be waived, only by written instrument making specific reference to this
     Agreement which is signed by the party against whom enforcement of any such
     amendment, supplement,  modification or waiver is sought. Any waiver of any
     breach of this Agreement  shall not be construed to be a continuing  waiver
     or consent to any subsequent breach by any party hereto.

          (c) No delay or omission in exercising  any right or remedy  hereunder
     shall operate as a waiver  thereof or of any other right or remedy,  and no
     single or partial  exercise  thereof  shall  preclude  any other or further
     exercise  thereof or the exercise of any other right or remedy.  Any waiver
     of any breach of this  Agreement  shall not be construed to be a continuing
     waiver or consent to any subsequent breach by any party hereto.

          (d) Any notice,  consent,  direction or other instruction  required or
     permitted to be given under the  provisions of this  Agreement  shall be in
     writing and  delivered  or sent by personal  delivery,  overnight  delivery
     service,  registered  mail, or by facsimile  transmission  addressed to the
     recipient  at the  address  first above  written or such  address as may be
     designated by notice by either party to the other. Any  communication  made
     or given by personal  delivery,  overnight  delivery service,  or facsimile
     transmission shall be conclusively  deemed to have been given on the day of
     actual delivery  thereof,  provided that if delivery is effected after 5:00
     p.m. (New York time) delivery shall be deemed to have been made on the next
     following day which is not a Saturday,  Sunday or statutory  holiday in New
     York City.  Any  communication  made or given by  registered  mail shall be
     conclusively  deemed  to have  been  given on the  fifth  day,  other  than
     Saturday,  Sunday  or  statutory  holiday  in New York City  following  the
     deposit thereof in the mail.

          (e)  Consultant's  rights and duties under this  Agreement  may not be
     assigned or delegated  without the prior written  consent of the Company in
     its sole  discretion,  and any attempted  assignment or delegation  without
     such consent shall be void.  The rights of the Company may be assigned to a
     successor carrying on substantially the same business as the Company.  This
     Agreement  shall be  binding  upon and shall  inure to the  benefit  of the
     parties hereto and their legal representatives, successors and assigns; but
     nothing in this  Agreement,  express or  implied,  is  intended to or shall
     confer upon any other  person any rights or remedies  under or by reason of
     this Agreement.

          (f)  Consultant  acknowledges  that it has read this Agreement and has
     been given the opportunity to obtain independent legal advice and that such
     advice has either been obtained or waived.


                                      -6-



          (g) This Agreement  shall be construed and governed by the laws of the
     State of New York.

          (h) This  Agreement  shall be  binding  upon  and  shall  inure to the
     benefit of the Company and Consultant  and their  respective  heirs,  legal
     representatives, successors and assigns.

          (i) The Section headings contained in this Agreement are for reference
     purposes only and shall not affect in any way the meaning or interpretation
     of this Agreement.

          (j) This Agreement  shall be construed and governed in accordance with
     the laws of the State of New York.

          (k) This Agreement may be executed in any number of counterparts, each
     of which shall be deemed to be an original, but all of which together shall
     constitute one and the same instrument.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
executed on the day and year first written above.

                                              TECH LABORATORIES, INC.


                                              By: /s/
                                                  ------------------------------
                                                  Bernard M. Ciongoli, President

                                              COBY CAPITAL CORPORATION


                                              By: /s/
                                                  ------------------------------
                                                  Scott Coby, President

The  undersigned  agrees to be personally
bound by Sections 6, 7, and 8 of this
Agreement.


/s/
- --------------------------------------------
Scott Coby


                                       -7-