DATAMETRICS CORP
8-K, 1999-01-07
COMPUTER PERIPHERAL EQUIPMENT, NEC
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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


                                DECEMBER 24, 1998
           -----------------------------------------------------------
                Date of Report (Date of earliest event reported)


                             DATAMETRICS CORPORATION
           -----------------------------------------------------------
             (Exact name of registrant as specified in its charter)


                                    DELAWARE
           -----------------------------------------------------------
                 (State or other jurisdiction of incorporation)


        0-8567                                                 95-3545701
- ------------------------                                  --------------------
(Commission File Number)                                    (I.R.S. Employer
                                                           Identification No.)


   25B HANOVER ROAD, FLORHAM PARK, NJ                            07932
- ----------------------------------------                      ------------
(Address of principal executive offices)                       (Zip Code)


                                 (973) 377-3900
           -----------------------------------------------------------
               Registrant's telephone number, including area code


          -------------------------------------------------------------
          (Former name or former address, if changed since last report)


================================================================================

<PAGE>

ITEM 5
- ------

         On December  24, 1998 and December 28,  1998,  several  investors  (the
"Investors")   purchased   $3,450,000  in  aggregate  principal  amount  of  10%
Subordinated  Notes due 2000  (the  "Notes")  of  Datametrics  Corporation  (the
"Registrant")  pursuant to 10% Subordinated  Note  Subscription  Agreements (the
"Note  Agreements").  The Notes are subject to repurchase  by the  Registrant at
102% of the principal amount of Notes repurchased, plus accrued interest.

            The  aggregate  cash  consideration  paid  was  $1,200,000,  and the
remainder  of the  consideration  paid  was by  tender  back  to  Registrant  of
$1,750,000 of 7% Convertible Debentures issued by the Registrant earlier in 1998
(the "7% Debentures") and $500,000 of Senior Subordinated Debentures,  including
accrued  interest  and  unpaid  interest  in  each  case.  As a  result  of  the
transaction, all of Registrant's 7% Debentures were retired.

         In  connection  with the sale of the Notes,  the  Investors  received a
total of 2,075,560 warrants (the "Warrants") to purchase the Common Stock of the
Registrant for an exercise price of $1.50 per share. A total of 1,229,800 of the
Warrants are  immediately  exercisable  and the remainder vest ratably as of the
end of each calendar  quarter  through the quarter ending  September 30, 2000 at
the rate of 3000  warrants  per  $100,000  in  principal  amount  of Notes  then
outstanding.

         The principal amount of the Notes bears interest at the rate of 10% per
annum and matures on  December  24,  2000.  The  Debentures  are  unsecured  and
subordinate  and  junior  to the  prior  payment  in  full  of all  senior  bank
indebtedness of the Registrant.

         The Note Agreements  contain certain  covenants and  restrictions and a
related  Registration Rights Agreement grants the Investors certain registration
rights with  respect to the shares of Common  Stock  which may be acquired  upon
exercise of the Warrants.

         On  December  24,  1998,  the  Registrant  sold in a private  placement
1,559,375  shares (the "Shares") of the  Registrant's  Common Stock at $1.00 per
share pursuant to a Subscription  Agreement with certain  investors (the "Common
Stock Subscription Agreement"). The Shares cannot be sold or transferred for six
months from the date of issue and are otherwise restricted shares.

         Proceeds  of the  sale of the  Notes  and  Shares  are to be  used  for
repayment of debt (including repayment in full of the Registrant's senior credit
facility with Imperial Bank) and for working capital.


<PAGE>


         The above  discussion  is qualified in its entirety by reference to the
Note  Agreements,  the Notes,  the Common Stock  Subscription  Agreement and the
Registration Rights Agreement, which are substantially the same as Exhibits 4.4,
4.5, 4.6 and 4.7, respectively, and are incorporated herein by this reference.


ITEM 7
- ------


         (c)      EXHIBITS


         Exhibits which, in their entirety, are incorporated by reference to any
report, exhibit or other filing previously made with the Securities and Exchange
Commission  are  designated by an asterisk (*) and the location of such material
is included in its description.



<TABLE>
<CAPTION>

EXHIBIT NO.           DESCRIPTION                                                                    PAGE NO.     
- -----------           -----------                                                                    --------     
                                                                                                     
<S>                  <C>                                                                       <C>                                 
   3.1                Restated  Certificate of Incorporation  of Registrant,  as                                  
                      currently in effect.                                                               *        
                                                                                                                  
   3.2                Certificate  of  Designations,  Preferences  and Relative,                                  
                      Participating, Optional and Other Special Rights of Series                         *        
                      B  Preferred  Stock and  Qualifications,  Limitations  and                                  
                      Restrictions  thereof dated August 10, 1993  (incorporated                                  
                      by reference to Exhibit 4.1 to Registrant's Form 8-K dated                                  
                      August 10, 1993).                                                                           
                                                                                                                  
   3.3                Bylaws of Registrant, as currently in effect (incorporated                                  
                      by reference to Exhibit 3.2 to Registrant's  Form 10-K for                         *        
                      the year ended October 28, 1990).                                                           
                                                                                                                  
   3.4                First Amendment to the Restated By-Laws of the Registrant,                                  
                      dated August 6, 1996 (incorporated by reference to Exhibit                         *        
                      3.0 to the Registrant's Form 8-K dated August 6, 1996).                                     
                                                                                                                  
   4.1                7% Convertible Debenture  Subscription  Agreement dated as
                      of July 24, 1998 between the  Registrant and the Investors
                      named therein (incorporated by reference to Exhibit 4.1 to                         *
                      the Registrant's Form 8-K dated July 24, 1998).
<PAGE>

EXHIBIT NO.           DESCRIPTION                                                                    PAGE NO.     
- -----------           -----------                                                                    --------     
                                                                                                     
<S>                  <C>                                                                       <C>
         
   4.2                Form  of  7%  Convertible   Debenture   (incorporated   by                        *
                      reference  to  Exhibit  4.2 to the  Registrant's  Form 8-K
                      dated July 24, 1998).

   4.3                Registration  Rights  Agreement  dated as of July 24, 1998                        *
                      between the  Registrant  and the  Investors  named therein
                      (incorporated   by   reference   to  Exhibit  4.3  to  the
                      Registrant's Form 8-K dated July 24, 1998).

   4.4                Form of 10% Subordinated Note Subscription Agreement.                            Filed
                                                                                                      herewith

   4.5                Form of 10% Subordinated Note.                                                   Filed
                                                                                                      herewith

   4.6                Form of Registration Rights Agreement.                                           Filed
                                                                                                      herewith

   4.7                Form of Subscription Agreement.                                                  Filed
                                                                                                      herewith

   10.1               Line of Credit Agreement,  Security Agreement, Addendum to                         *
                      Line  of   Credit   Agreement,   and   Loan   Disbursement
                      Instructions  dated  September  8, 1993  (incorporated  by
                      reference  to Exhibit 10.1 to  Registrant's  Form 10-K for
                      the year ended October 31, 1993).

   10.3               Lease for Woodland Hills facility  between the Company and                         *
                      Manufacturers  Life Insurance Company dated as of December
                      19, 1993, as amended on August 31, 1994  (incorporated  by
                      reference  to Exhibit 10.2 to  Registrant's  Form 10-K for
                      the year ended October 30, 1994).

   10.4               Agreement  between  the  Company  and Sidney E. Wing dated                         *
                      March 17, 1989  (incorporated by reference to Exhibit 10.4
                      to  Registrant's  Form 10-K for the year ended October 29,
                      1989).

   10.5               Deferred  Compensation  Agreement  between the Company and                         *
                      Garland S. White dated October 18, 1989  (incorporated  by
                      reference  to Exhibit 10.5 to  Registrant's  Form 10-K for
                      the year ended October 29, 1989).

</TABLE>

<PAGE>


<TABLE>
<CAPTION>

EXHIBIT NO.           DESCRIPTION                                                                    PAGE NO.     
- -----------           -----------                                                                    --------     
                      
<S>                  <C>                                                                       <C>

   10.6               Amended and Restated Agreement and Plan of Merger dated as                         *
                      of May 12,  1993  between  Registrant  and Rugged  Digital
                      Systems,   Inc.   ("Rugged   Digital")   (incorporated  by
                      reference to Exhibit 2 to Registrant's  Form 8-K dated May
                      12, 1993).

   10.7               Escrow   Agreement   dated   August  10,  1993  among  the                         *
                      Registrant  and  others  relating  to the  acquisition  of
                      Rugged Digital  (incorporated  by reference to Exhibit 4.3
                      to Registrant's Form 8-K dated August 10, 1993).

   10.8               Debt  Exchange  Agreement  dated  August  10,  1993  among                         *
                      Registrant    and   debt   holders   of   Rugged   Digital
                      (incorporated  by reference to Exhibit 4.2 to Registrant's
                      Form 8-K dated August 10, 1993).

   10.9               Security  and  Loan  Agreement   between   Registrant  and                         *
                      Imperial Bank executed  March 21, 1995, as amended May 15,
                      1995   (incorporated  by  reference  to  Exhibit  10.1  to
                      Registrant's  Form  10-Q for the  period  ended  April 30,
                      1995),  and as  amended  March 4,  1996  (incorporated  by
                      reference  to period  ended April 30, 1995) and as amended
                      March 4, 1966  (incorporated  by reference to Exhibit 10.1
                      to  Registrant's  Form 10-Q for the period ended April 28,
                      1996).

   10.10              Agreement  between the Company  and the  Angeloff  Company                         *
                      dated  February  15, 1995  (incorporated  by  reference to
                      Exhibit  10.2 to  Registrant's  Form  10-Q for the  period
                      ended April 30, 1995).

   21                 List of Subsidiaries (incorporated by reference to Exhibit                         *
                      21 to the  Registrant's  Form  10-K  for  the  year  ended
                      October 27, 1996).

   99.1               The  Datametrics  Employee  Savings  Plan  And  The  Trust                         *
                      Agreement  Pursuant To The  Datametrics  Employee  Savings
                      Plan   (incorporated   by   reference  to  Exhibit  28  to
                      Registrant's  Statement  on Form S-8 filed on November 12,
                      1985 SEC File No. 33-01469.

</TABLE>

<PAGE>

<TABLE>
<CAPTION>

EXHIBIT NO.           DESCRIPTION                                                                    PAGE NO.     
- -----------           -----------                                                                    --------     
                      
<S>                  <C>                                                                       <C>

   99.2               The  Amended  and  Restated  1993  Stock  Option  Plan  of                         *
                      Datametrics  Corporation  (incorporated  by  reference  to
                      Exhibit 28.2 to Registrant's  Form 10-K for the year ended
                      October 31, 1993).

   99.3               The 1986 Stock Option Plan of Datametrics Corporation,  as                         *
                      amended  (incorporated  by  reference  to Exhibit  28.1 to
                      Registrant's  Registration  Statement on Form S-8 filed on
                      June 10, 1987,  SEC File No.  33-14969 and Exhibit 28.5 to
                      Registrant's  Form  10-K for the year  ended  October  29,
                      1988).

   99.4               The 1982 Stock Option Plan of Datametrics Corporation,  as                         *
                      amended  (incorporated  by  reference  to Exhibit  28.2 to
                      Registrant's  Registration  Statement on Form S-8 filed on
                      June 10, 1987, SEC File No. 33-14969).

   99.5               The 1993 Directors' Option Plan of Datametrics Corporation                         *
                      (incorporated by reference to Exhibit 28.5 to Registrant's
                      Form 10-K for the year ended October 31, 1993).

   99.6               Datametrics Corporation  Supplemental Executive Retirement
                      Plan and Master Trust Agreement (incorporated by reference
                      to  Exhibit  28.6 to  Registrant's  From 10-K for the year
                      ended October 30, 1994).

   99.7               The 1995  Stock  Option  Plan of  Datametrics  Corporation                         *
                      (incorporated by reference to Exhibit 28.7 to Registrant's
                      Form S-8 Filed May 30, 1996, SEC File No. 333-04815).

   99.8               The  Datametrics   Corporation  Employee  Qualified  Stock                         *
                      Purchase Plan  (incorporated  by reference to Exhibit 28.8
                      to  Registrant's  Form S-8 filed on May 30, 1996, SEC File
                      No. 333-04815).
       
</TABLE>

<PAGE>

                                   SIGNATURES


        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 hereunto duly authorized.


                                       DATAMETRICS CORPORATION



                                       By:  /s/ Daniel P. Ginns
                                            ----------------------------------
                                            Daniel P. Ginns
                                            Chairman and Chief Executive Officer


Dated December 24, 1998




                                                                     EXHIBIT 4.4
                                                                     -----------

THESE SECURITIES HAVE NOT BEEN REGISTERED WITH THE UNITED STATES  SECURITIES AND
EXCHANGE COMMISSION (THE "COMMISSION") OR THE SECURITIES COMMISSION OF ANY STATE
PURSUANT TO AN EXEMPTION FROM REGISTRATION  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE "ACT"),  AND APPLICABLE STATE  SECURITIES  LAWS. THIS  SUBSCRIPTION
AGREEMENT  SHALL NOT CONSTITUTE AN OFFER TO SELL NOR A SOLICITATION  OF AN OFFER
TO BUY THE SECURITIES IN ANY  JURISDICTION  IN WHICH SUCH OFFER OR  SOLICITATION
WOULD BE UNLAWFUL.  THE  SECURITIES  MAY NOT BE SOLD,  PLEDGED,  TRANSFERRED  OR
ASSIGNED  EXCEPT  PURSUANT  TO AN  EFFECTIVE  REGISTRATION  STATEMENT  UNDER THE
SECURITIES ACT AND UNDER  APPLICABLE  STATE SECURITIES LAWS, OR IN A TRANSACTION
WHICH IS EXEMPT FROM REGISTRATION UNDER THE PROVISIONS OF THE SECURITIES ACT AND
UNDER PROVISIONS OF APPLICABLE STATE SECURITIES LAWS.


                              10% SUBORDINATED NOTE
                             SUBSCRIPTION AGREEMENT

                             DATAMETRICS CORPORATION


         THIS 10% SUBORDINATED NOTE SUBSCRIPTION AGREEMENT (this "Agreement") is
executed  in  reliance  upon an  exemption  under the  Securities  and  Exchange
Commission ("SEC"), under the Securities Act of 1933, as amended (the "Act").

         This Agreement has been executed by the  undersigned in connection with
the private  placement of the 10% Subordinated  Notes (the "Notes") and Warrants
to purchase 797,760 shares of common stock of DATAMETRICS  CORPORATION (American
Stock  Exchange  symbol "DC"),  with an address at 25B Hanover  Road,  No. 3305,
Florham Park, NJ 07932, a corporation  organized  under the laws of the State of
Delaware, USA (the "Company").  The terms of the Notes are set forth in the form
of the 10% Subordinated  Note due 2000 annexed hereto as Exhibit A (the "Form of
Note").  The terms of the Warrants  are set forth in the form annexed  hereto as
Exhibit  B (the  "Form of  Warrant").  The  offer  and sale of the Notes and the
Warrants  (collectively  the  "Securities"),  are being made in reliance upon an
exemption  under the Act.  The Form of Note and Form of Warrant are  referred to
herein as the "Forms of  Securities".  The Closing Date shall be  determined  in
accordance with Section 2 hereof.

         Each  of  the  entities  listed  on  SCHEDULE  A  annexed  hereto  (the
"Subscribers") hereby represents and warrants to, and agrees with the Company as
follows:


                                       -1-



<PAGE>

         SECTION 1.  AGREEMENT TO SUBSCRIBE; PURCHASE PRICE.

         1.1     CLOSING. The Company will sell and the Subscribers will buy, in
reliance upon the  representations and warranties of the Company and Subscribers
contained  in this  Agreement  and the Forms of  Securities,  upon the terms and
conditions  set forth herein and  therein,  that  principal  amount of Notes set
forth next to their names on SCHEDULE A for an aggregate purchase price of Three
Million  Three  Hundred  Twenty-Four  Thousand  ($3,324,000)  U.S.  Dollars (the
"Purchase  Price") payable as set forth on SCHEDULE A. A portion of the Purchase
price in the case of certain Subscribers ("Existing  Securityholders")  consists
of the  surrender  and  cancellation  of 7%  Convertible  Debentures  and Senior
Subordinated  Debentures  of the  Company  (the  "Existing  Notes")  held by the
Existing  Securityholders,  the  instruments for which shall be delivered to the
Company at the Closing  together  with bond powers  endorsed in blank.  The cash
portion of the Purchase Price shall be paid on the Closing Date by federal funds
wire transfer to the Company's account as follows:


                  First Union National Bank
                  Chatham, New Jersey Branch
                  ABA #031201467
                  Account No. 203 0000 490222
                  Account Name: Datametrics Corporation


         In  addition,  the  Company  will pay a  closing  fee  ("Closing  Fee")
consisting of additional  warrants to purchase  Common Stock having the form set
forth in  EXHIBIT D and in the  amounts  set forth on  SCHEDULE  A. The  closing
("Closing")  of such  purchase  and sale shall occur on  December  __, 1998 (the
"Closing Date").  The proceeds of the sale of the Notes will be used for working
capital  purposes and for the payment of  indebtedness of the Company other than
Senior Debt (as defined in the Notes).


         SECTION  2.   REPRESENTATIONS   AND  WARRANTIES  OF  THE   SUBSCRIBERS.
Subscribers each acknowledge, represent, warrant and agree as follows:

         2.1     ORGANIZATION AND AUTHORIZATION. Each of the Subscribers is duly
incorporated  or organized  and validly  existing in the state or country of its
incorporation  or  organization  and has all  requisite  power and  authority to
subscribe  for and  purchase  and hold the  Securities  and to enter  into  this
Agreement.  The decision to subscribe for the  Securities  and the execution and
delivery  of  this  Agreement  by  the  Subscribers,   the  performance  by  the
Subscribers  of  their  obligations   hereunder  and  the  consummation  by  the
Subscribers of the  transactions  contemplated  hereby have been duly authorized
and require no other proceedings on the part of the Subscribers. The undersigned
signatories  have all right,  power and  authority  to execute and deliver  this
Agreement on behalf of the  Subscribers.  This  Agreement has been duly executed
and delivered by the Subscribers and, assuming the execution and delivery hereof
and acceptance hereof by the Company,  constitutes the legal,  valid and binding
obligations  of  the  Subscribers,   enforceable   against  the  Subscribers  in
accordance with its terms. Each Existing Securityholder  represents and warrants
to the Company

                                       -2-



<PAGE>


that it is the legal and  beneficial  owner of the  Existing  Notes  free of all
liens and encumbrances both on the date hereof and at the Closing.

         2.2     EVALUATION OF RISKS. Each of the Subscribers has such knowledge
and experience in financial and business  matters as to be capable of evaluating
the  merits  and risks of,  and  bearing  the  economic  risks  entailed  by, an
investment  in the Company and of protecting  its  interests in connection  with
this  transaction.  They each  recognize  that their  investment  in the Company
involves a high degree of risk and could  result in the  complete  loss of their
investment.

         2.3     INDEPENDENT  COUNSEL. Each of the Subscribers  acknowledge that
they have been  advised  to  consult  with their own  attorney  regarding  legal
matters  concerning  the Company and their  investment in the  Securities and to
consult with their tax advisor  regarding the tax  consequences of acquiring the
Securities.

         2.4     DISCLOSURE  DOCUMENTATION.  Each of the  Subscribers  has  each
received  and  reviewed  copies  of  the  Company's   reports  and  registration
statements  filed under the  Securities  Exchange  Act of 1934,  as amended (the
"1934 Act"),  and the Act,  including the Company's  10-Ks,  10-Qs,  8-K's,  and
registration  statements filed by the Company since June 1, 1997  (collectively,
the "Reports").  Except for the Reports,  the Subscribers are not relying on any
other information relating to the offer and sale of the Securities.  Subscribers
acknowledge that the Company has offered to make available any additional public
information  that the Subscribers may reasonably  request,  including  technical
information,  and  other  material  public  information  about the  Company  and
Subscribers have been offered the Company's full and  unconditional  cooperation
in making such  information  available to Subscribers and  acknowledge  that the
Company has recommended that the Subscribers request and review such information
prior to making an investment  decision.  Except as set forth in herein, no oral
or  written  representations  have been  made,  or oral or  written  information
furnished to the  undersigned,  the  Subscribers or their  advisors,  if any, in
connection  with the  offering  of the  Securities  which were or are in any way
inconsistent with the Reports.

         2.5     OPPORTUNITY TO ASK QUESTIONS. Each of the Subscribers has had a
reasonable  opportunity to ask questions of and receive answers from the Company
concerning  the  Company  and the  offering  of the  Securities,  and  all  such
questions,  if any, have been answered to the full  satisfaction  of each of the
Subscribers.

         2.6     REPORTS CONSTITUTE SOLE REPRESENTATIONS. Except as set forth in
the Reports and elsewhere  herein,  no  representations  or warranties have been
made to  Subscribers  by (a) the Company or any agent,  employee or affiliate of
the  Company or (b) any other  person,  and in  entering  into this  transaction
Subscribers are not relying upon any  information,  other than that contained in
the Reports and the results of independent investigation by Subscribers.

         2.7     EACH OF THE SUBSCRIBERS IS AN ACCREDITED  INVESTOR.  All of the
Subscribers  are  "Accredited  Investors",  as defined  under  Regulation D, and
represent and warrant that they are included within one or more of the following
categories of "Accredited Investors."

                                       -3-



<PAGE>

         (i)      Any bank as  defined in  Section  3(a)(2)  of the Act,  or any
                  savings and loan associated or other institution as defined in
                  Section  3(a)(5)A of the Act whether  acting in its individual
                  or  fiduciary  capacity;   any  broker  or  dealer  registered
                  pursuant to Section 15 of the 1934 Act; any insurance  company
                  as defined in Section 2(13) of the Act; any investment company
                  registered  under  the  Investment  Company  Act of  1940 or a
                  business development company as defined in Section 2(a)(48) of
                  that Act; any Small Business  Investment  Company  licensed by
                  the U.S. Small Business Administration under Section 301(c) or
                  (d) of the Small  Business Act of 1958;  any plan  established
                  and maintained by a state, its political subdivisions,  or any
                  agency  or   instrumentality  of  a  state  or  its  political
                  subdivision,  for the  benefits of its  employees if such plan
                  has total assets in excess of $5,000,000; and employee benefit
                  plan within the meaning of Title I of the Employee  Retirement
                  Income Security Act of 1974 if the investment decision is made
                  by a plan fiduciary,  as defined in Section 3(21) of such Act,
                  which  is  either  a  bank,   savings  and  loan  association,
                  insurance company, or registered investment advisor, or if the
                  employee   benefit   plan  has  total   assets  in  excess  of
                  $5,000,000;

         (ii)     Any private business development company as defined in Section
                  202(a)(22) of the Investment Advisers Act of 1940;

         (iii)    Any  organization   described  in  Section  501(c)(3)  of  the
                  Internal Revenue Code,  corporation,  Massachusetts or similar
                  business trust,  or  partnership,  not formed for the specific
                  purpose of acquiring the securities offered, with total assets
                  in excess of $5,000,000;

         (iv)     Any director,  executive  officer,  or general  partner of the
                  Company,  or  any  director,  executive  officer,  or  general
                  partner of a general partner of that issuer;

         (v)      Any natural person whose  individual  net worth,  or joint net
                  worth with that person's  spouse,  at the time of his purchase
                  exceeds $1,000,000;

         (vi)     Any natural  person who had an individual  income in excess of
                  $200,000  in each of the two (2)  most  recent  years or joint
                  income with that person's spouse in excess of $300,000 in each
                  of those years and has a  reasonable  expectation  of reaching
                  that same income level in the current year;

         (vii)    Any trust,  with  total  assets in excess of  $5,000,000,  not
                  formed for the specific  purpose of acquiring  the  securities
                  offered,  whose purchase is directed by a sophisticated person
                  as  described  in Section  230.506(b)(2)(ii)  of  Regulation D
                  under the Act;

         (viii)   Any  entity in which all of the equity  owners are  accredited
                  investors; and


                                       -4-



<PAGE>

         (ix)     Any  self-directed   employee  benefit  plan  with  investment
                  decisions made solely by persons that are accredited investors
                  within the  meaning of Rule 501 of  Regulation  D  promulgated
                  under the Act.

         2.8      NO  REGISTRATION, REVIEW OR APPROVAL.  Each of the Subscribers
acknowledges  and  understands  that the limited  private  offering  and sale of
Securities  pursuant to this  Agreement has not been reviewed or approved by the
SEC or by any state  securities  commission,  authority  or  agency,  and is not
registered  under the Act or under the  securities or "blue sky" laws,  rules or
regulations of any state. Each of the Subscribers acknowledges,  understands and
agrees that the Securities are being offered and sold hereunder  pursuant to (i)
a private placement exemption to the registration provisions of the Act pursuant
to Section 3(b) or Section 4(2) of such Act, and (ii) a similar exemption to the
registration  provisions  of  applicable  state  securities  laws.  Each  of the
Subscribers  understands that the Company is relying upon the truth and accuracy
of   the   representations,    warranties,   agreements,   acknowledgments   and
understandings  of the  Subscribers  set forth herein in order to determine  the
applicability  of such  exemptions  and the  suitability  of the  Subscribers to
acquire the Securities.

         2.9      INVESTMENT  INTENT.  Without  limiting their ability to resell
the Securities  pursuant to an effective  registration  statement under the Act,
each of the  Subscribers is acquiring the Securities  solely for its own account
and not with a view to the distribution, assignment or resale to others. Each of
the  Subscribers  understands  and agrees that it may have to bear the  economic
risk of its investment in the Securities for an indefinite period of time.

         2.10     NO ADVERTISEMENTS. The Subscribers are not subscribing for the
Securities as a result of or subsequent to any advertisement, article, notice or
other communication  published in any newspaper,  magazine,  or similar media or
broadcast over television or radio, or presented at any seminar or meeting.

         2.11     REGISTRATION   RIGHTS.   The  parties   have  entered  into  a
Registration Rights Agreement in the form of EXHIBIT C.

         2.12     EXISTING  NOTES. The Existing  Securityholders hereby agree to
execute all documents and instruments reasonably required to terminate all liens
and  encumbrances  on assets of the  Company  in favor of the  holders of Senior
Secured Debentures of the Company.

         Section 3.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company
acknowledges, represents, warrants and agrees as follows:

         3.1      ORGANIZATION/QUALIFICATION.  The Company is a corporation duly
organized and validly existing under the laws of the State of Delaware and is in
good standing under such laws. The Company has all requisite corporate power and
authority to own, lease and operate its  properties and assets,  and to carry on
its business as presently conducted.  The Company is qualified to do business as
a  foreign  corporation  in each  jurisdiction  in which  the  ownership  of its
property or the

                                       -5-



<PAGE>

nature of its business requires such qualification,  except where its failure to
be so qualified would not have a material adverse effect on the Company.

         3.2      ACCURACY  OF  REPORTS  AND  INFORMATION.  Except as  otherwise
disclosed herein or in any schedule hereto, the Company is in compliance, to the
extent  applicable,  with all reporting  obligations under either Section 12(b),
12(g) or 15(d) of the 1934  Act,  and  shall  maintain  such  status on a timely
basis. The Company has registered its Common Stock pursuant to Section 12 of the
1934 Act and the  Common  Stock is  listed  and  trades  on the  American  Stock
Exchange.  The Company has filed all material  required to be filed  pursuant to
all reporting  obligations,  under either Section 13(a) or 15(d) of the 1934 Act
during the twelve (12) months  immediately  preceding  the offer and sale of the
Securities  (or for such  shorter  period that the Company has been  required to
file such material).

         3.3     SEC FILINGS/FULL DISCLOSURE. None of the Company's filings with
the  Securities  and  Exchange  Commission  contain  any untrue  statement  of a
material fact or omit to state any material  fact required to be stated  therein
or necessary to make the statements therein in light of the circumstances  under
which they were made, not misleading. The Company has timely filed all requisite
forms, reports and exhibits thereto with the Securities and Exchange Commission.
There is no fact known to the Company  (other than general  economic  conditions
known to the  public  generally)  that has not been  publicly  disclosed  by the
Company  or  disclosed  in writing  to each of the  Subscribers  which (i) could
reasonably  be  expected  to have a  material  adverse  effect on the  condition
(financial or otherwise) or on the earnings,  business affairs,  properties,  or
assets of the Company (a "Material Adverse Effect"), or (ii) could reasonably be
expected  materially  and  adversely  to affect the  ability  of the  Company to
perform its obligations pursuant to this Agreement.

         3.4      AUTHORIZATION.  The Company has all requisite corporate right,
power and authority to execute and deliver this  Agreement and to consummate the
transactions  contemplated  hereby.  All  corporate  action  on the  part of the
Company,  its  directors  and  stockholders  necessary  for  the  authorization,
execution,  delivery and  performance  of this  Agreement  by the  Company,  the
authorization, sale, issuance and delivery of the Securities and the performance
of the Company's  obligations  hereunder has been taken. This Agreement has been
duly  executed and delivered by the Company and  constitutes a legal,  valid and
binding  obligation of the Company  enforceable  in  accordance  with its terms,
subject to laws of general  application  relating to bankruptcy,  insolvency and
the  relief  of  debtors  and  rules  of  law  governing  specific  performance,
injunctive  relief or other  equitable  remedies,  and to  limitations of public
policy as they may  apply to the  indemnification  provisions  set forth in this
Agreement.  Upon their issuance and delivery in accordance  with this Agreement,
the Securities will be validly issued,  fully paid and nonassessable and will be
free of any liens or encumbrances;  provided,  however,  that the Securities are
subject to restrictions on transfer under state and/or federal  securities laws.
The issuance  and sale of the  Securities  will not give rise to any  preemptive
right or right of first  refusal  or right of  participation  on  behalf  of any
person.

         3.5      NO  CONFLICT.  The execution and delivery of this Agreement do
not,  and the  consummation  of the  transactions  contemplated  hereby will not
result in any violation of, or default,

                                       -6-



<PAGE>

or give rise to a right of  termination,  cancellation  or  acceleration  of any
material obligation or to a loss of a material benefit,  under, any provision of
the Certificate of Incorporation,  and any amendments  thereto,  Bylaws, and any
amendments thereto of the Company or any material mortgage,  indenture, lease or
other agreement or instrument, permit, concession, franchise, license, judgment,
order, decree,  statute,  law, ordinance,  rule or regulation  applicable to the
Company,  its properties or assets and which (i) would reasonably be expected to
have a Material Adverse Effect, or (ii) could reasonably be expected  materially
and  adversely  to affect the ability of the Company to perform its  obligations
pursuant to this Agreement.

         3.6      NO  UNDISCLOSED  LIABILITIES  OR EVENTS.  The  Company  has no
liabilities  or  obligations,  other than those  disclosed in the Reports,  this
Agreement or those  incurred in the ordinary  course of the  Company's  business
since  June  15,  1998,  which  individually  or in  the  aggregate,  would  (i)
reasonably be expected to have a Material Adverse Effect,  or (ii) reasonably be
expected  materially  and  adversely  to affect the  ability  of the  Company to
perform its obligations pursuant to this Agreement. Except as set for in Section
3.24, to the knowledge of the Company,  no event or circumstance has occurred or
exists with  respect to the Company  which (i) could  reasonably  be expected to
have a Material Adverse Effect, or (ii) could reasonably be expected  materially
and  adversely  to affect the ability of the Company to perform its  obligations
pursuant to this Agreement.

         3.7      NO  DEFAULT.  Except as set forth in Section 3.24, the Company
is not in default in the  performance or observance of any material  obligation,
agreement,  covenant or condition contained in any indenture,  mortgage, deed of
trust or other  material  instrument  or  agreement to which it is a party or by
which it is or its  property  is  bound,  and  neither  the  execution,  nor the
delivery by the Company,  nor the  performance by the Company of its obligations
under this Agreement or the Exhibits  annexed hereto,  will result in the breach
or violation of any of the terms or  provisions  of, or  constitute a default or
result in the  creation  or  imposition  of any lien or charge on any  assets or
properties of the Company under, any material indenture, mortgage, deed of trust
or other agreement  applicable to the Company or instrument to which the Company
is a party  or by  which  it is  bound  or any  statute  or the  Certificate  of
Incorporation or by-laws of the Company, or any decree, judgment, order, rule or
regulation of any court or governmental  agency or body having jurisdiction over
the Company or its properties, or the Company's listing agreement for its Common
Stock,  which  individually or in the aggregate (i) could reasonably be expected
to  have a  Material  Adverse  Effect,  or (ii)  could  reasonably  be  expected
materially  and  adversely  to affect the  ability of the Company to perform its
obligations pursuant to this Agreement.

         3.8      ABSENCE  OF  EVENTS  OF  DEFAULT.  Except  as set forth in the
Reports and this  Agreement and on Schedule 3.8 attached  hereto  (including all
Exhibits annexed hereto), no default, as defined in the respective  agreement to
which the Company is a party,  and no event which,  with the giving of notice or
the  passage  of time or both,  would  become a  default,  has  occurred  and is
continuing,  which would (i)  reasonably be expected to have a Material  Adverse
Effect, or (ii) could reasonably be expected  materially and adversely to affect
the  ability  of the  Company  to  perform  its  obligations  pursuant  to  this
Agreement.


                                       -7-



<PAGE>

         3.9      GOVERNMENTAL   CONSENT,   ETC.   No   consent,   approval   or
authorization  of or  designation,  declaration or filing with any  governmental
authority  on the part of the Company is required in  connection  with the valid
execution  and  delivery  of this  Agreement  (including  all  Exhibits  annexed
hereto),  or the offer, sale or issuance of the Securities,  or the consummation
of any other  transaction  contemplated  hereby,  except as may be  required  by
applicable securities laws.

         3.10     INTELLECTUAL  PROPERTY  RIGHTS.  Except  as  disclosed  in the
Reports,  the Company has  sufficient  trademarks,  trade names,  patent rights,
copyrights  and licenses to conduct its  business as presently  conducted in the
Reports.  Except as disclosed in the Reports,  to the  knowledge of the Company,
neither  the  Company  nor its  services  is  infringing  or will  infringe  any
trademark,  trade name, patent right, copyright,  license, trade secret or other
similar right of others currently in existence; and there is no claim being made
against the Company  regarding any  trademark,  trade name,  patent,  copyright,
license,  trade  secret or other  intellectual  property  right  which could (i)
reasonably  be  expected  to have a  Material  Adverse  Effect,  or  (ii)  could
reasonably  be expected  materially  and  adversely to affect the ability of the
Company to perform its obligations pursuant to this Agreement.

         3.11     MATERIAL  CONTRACTS. Except as set forth in the Reports and in
Section 3.24,  the  agreements to which the Company is a party  described in the
Reports are valid agreements,  in full force and effect,  and the Company is not
in breach or default under any of such agreements  which could (i) reasonably be
expected to have a Material  Adverse Effect,  or assets of the Company,  or (ii)
could  reasonably be expected  materially and adversely to affect the ability of
the Company to perform its obligations pursuant to this Agreement.

         3.12     LITIGATION.  Except as disclosed  in the Reports,  there is no
action,  proceeding or  investigation  pending,  or to the  Company's  knowledge
threatened,  against the Company which might result,  either  individually or in
the aggregate,  in any Material Adverse Effect.  Except as set forth on Schedule
3.8,  the Company is not a party to or subject to the  provisions  of any order,
writ,  injunction,  judgment  or  decree of any  court or  government  agency or
instrumentality  which  could (i)  reasonably  be  expected  to have a  Material
Adverse Effect, or (ii) could reasonably be expected to materially and adversely
affect the ability of the Company to perform  its  obligations  pursuant to this
Agreement.

         3.13     TITLE TO ASSETS.  Except as set forth in Reports,  the Company
has good and marketable title to all properties and material assets described in
the  Reports  as owned by it,  free and  clear  of any  pledge,  lien,  security
interest,  encumbrance,  claim or equitable  interest other than such as are not
material to the business of the Company.

         3.14     SUBSIDIARIES.  Except as disclosed in the Reports, the Company
does not presently own or control,  directly or indirectly,  any interest in any
other corporation, partnership, association or other business entity.


                                       -8-



<PAGE>

         3.15     REQUIRED GOVERNMENTAL PERMITS. The Company is in possession of
and  operating  in  material  compliance  with  all  authorizations,   licenses,
certificates,  consents,  orders  and  permits  from  state,  federal  and other
regulatory authorities which are material to the conduct of its business, all of
which are valid and in full force and effect.

         3.16     LISTING.  The Company will use reasonable  efforts to maintain
the listing of its Common Stock on the American Stock  Exchange,  the successors
thereto,  or other  organized  United  States  market or quotation  system.  The
Company has not received any notice,  oral or written,  affecting  its continued
listing on such  Exchange and the Company will take no action which would impact
its continued listing or eligibility of the Company for such listing.

         3.17     OTHER OUTSTANDING SECURITIES/FINANCING RESTRICTIONS. Except as
disclosed in the Reports,  the Company has no outstanding  restricted shares, or
shares of Common Stock sold under  Regulation  S,  Regulation  D or  outstanding
under any other  exemption  from  registration,  which are available for sale as
unrestricted ("free trading") stock.

         3.18     REGISTRATION  ALTERNATIVE.  The Company  covenants  and agrees
that for so long as any of the Common  Stock  issuable  upon  conversion  of the
Notes remains outstanding and continues to be "restricted securities" within the
meaning of Rule 144 under the Act, the Company shall cooperate in all reasonable
respects in order to permit resales of the  underlying  Common Stock pursuant to
Rule 144 under the Act.

         3.19     CAPITALIZATION.  The  authorized  capital stock of the Company
consists of  40,000,000  shares of Common Stock,  $0.01 par value per share,  of
which 15,397,830 are outstanding.  There are 5,000,000 shares of Preferred Stock
authorized and none  outstanding.  All issued and  outstanding  shares of Common
Stock   have  been  duly   authorized,   validly   issued  and  fully  paid  and
nonassessable.

         3.20     DILUTION.  The parties are aware and acknowledge that exercise
of the  Warrants  would  cause  dilution  to  existing  stockholders  and  could
significantly increase the outstanding number of shares of Common Stock.

         3.21     EMPLOYEE  RELATIONS.  The Company is not involved in any labor
dispute,  nor, to the knowledge of the Company,  is any such dispute threatened.
None of the Company's  employees is a member of a union and the Company believes
that its relations with its employees are good.

         3.22     ENVIRONMENTAL  LAWS. To its  knowledge,  the Company is (i) in
compliance  with  any and  all  foreign,  federal,  state  and  local  laws  and
regulations  relating  to  the  protection  of  human  health  and  safety,  the
environment  or  hazardous  or  toxic   substances  or  wastes,   pollutants  or
contaminants  and which the Company knows are  applicable to it  ("Environmental
Laws"),  (ii) has  received all permits,  licenses or other  approvals  required
under  applicable  Environmental  Laws to conduct its business,  and (iii) is in
compliance  with all  terms  and  conditions  of any  such  permit,  license  or
approval,  except in each case where one  failure to do so could  reasonably  be
expected to have a Material Adverse Effect.

                                       -9-



<PAGE>

         3.23     INSURANCE.  The Company is insured by  insurers of  recognized
financial  responsibility  against  such losses and risks and in such amounts as
management of the Company believes to be prudent and customary in the businesses
in which the  Company is engaged.  The Company has no reason to believe  that it
will not be able to renew  its  existing  insurance  coverage  as and when  such
coverage  expires,  or obtain similar  coverage from similar  insurers as may be
necessary  to  continue  its  business at a cost that would not  materially  and
adversely  affect  the  condition,  financial  or  otherwise,  or the  earnings,
business or operation of the Company.

         3.24     REPRESENTATIONS.  Notwithstanding  any other provision hereof,
the  Subscribers  understand  and  acknowledge  that the  Company is in material
default  under its senior bank  facility  with  Imperial  Bank and under certain
indebtedness that is intended be repaid with the proceeds hereof. The Company is
currently in default  under its agreement  governing  Senior Debt (as defined in
the Notes).

         Section  4.   REPRESENTATIONS   AND   WARRANTIES  OF  THE  COMPANY  AND
SUBSCRIBERS.  Each of the  Subscribers,  and  the  Company  represent,  warrant,
covenant, and agree to the other the following with respect to itself:

         4.1      SUBSCRIPTION   AGREEMENT.   This   Agreement   has  been  duly
authorized,  validly executed and delivered on behalf of the Company and each of
the Subscribers, and is a valid and binding agreement, enforceable in accordance
with its terms,  subject to general  principles  of equity and to  bankruptcy or
other laws affecting the enforcement of creditors' rights generally.

         4.2      NO-CONFLICT.  The execution and delivery of this  Agreement do
not, and the  consummation  of the  transactions  contemplated  hereby will not,
conflict with, or result in any violation of, or default (with or without notice
or lapse of time, or both), or give rise to a right of termination, cancellation
or acceleration of any obligation or to a loss of a material benefit,  under any
provision of the  Certificate  of  Incorporation,  and any  amendments  thereto,
bylaws and any amendments  thereto of any  Subscriber or any material  mortgage,
indenture,   lease  or  other  agreement  or  instrument,   permit,  concession,
franchise,  license,  judgment,  order, decree statute, law, ordinance,  rule or
regulation applicable to any Subscriber, or its respective properties or assets.

         4.3      APPROVALS.  Neither the Company, nor any Subscriber,  is aware
of any  authorization,  approval  or consent of any  governmental  body which is
legally  required for the Company's  issuance and sale of the  Securities to the
Subscribers.

         4.4      INDEMNIFICATION.  The  Company  and  each  of the  Subscribers
agrees to indemnify the other, and to hold the other harmless,  from and against
any  and  all  losses,  damages,  liabilities,  costs  and  expenses  (including
reasonable  attorneys'  fees) which the other may sustain or incur in connection
with the breach by the  indemnifying  party of any  representation,  warranty or
covenant made by it in this Agreement.


                                      -10-


<PAGE>

         Section  5.  REGISTRATION  OR  EXEMPTION  REQUIREMENTS.   Each  of  the
Subscribers  acknowledges and understands that the Securities (and any shares of
Common  Stock  issued  upon  exercise  of the  Warrants)  may not be  resold  or
otherwise  transferred except in a transaction  registered under the Act and any
applicable state  securities laws or unless an exemption from such  registration
is available.  Each of the Subscribers  understands  that the Securities will be
imprinted with a legend that prohibits the transfer of the Securities unless (i)
they are registered under applicable securities laws or such registration is not
required, or (ii) if the transfer is pursuant to an exemption from registration,
an opinion of counsel reasonably  satisfactory to the Company is obtained to the
effect that the transaction is so exempt.

         Section 6. LEGEND.  The certificates  representing the Securities shall
be subject to a legend  restricting  transfer  under the Act,  such legend to be
substantially as follows:

          "THE SECURITIES  REPRESENTED  HEREBY HAVE BEEN ACQUIRED FOR INVESTMENT
          AND HAVE NOT BEEN  REGISTERED  UNDER THE  SECURITIES  ACT OF 1933,  AS
          AMENDED (THE  "ACT").  SUCH  SECURITIES  MAY NOT BE OFFERED OR SOLD OR
          TRANSFERRED  IN THE  ABSENCE  OF  SUCH  REGISTRATION  OR AN  EXEMPTION
          THEREFROM UNDER SAID ACT."

         The certificates  representing  these Securities,  and each certificate
issued  in  transfer  thereof,  will  also bear any  legend  required  under any
applicable state securities law.

         Section 7. CONDITIONS TO THE COMPANY'S  OBLIGATION TO SELL. Each of the
Subscribers  understands that the Company's obligation to sell the Securities is
conditioned upon:

         (i)      The receipt and acceptance by the Company of this Subscription
                  Agreement  and all Exhibits duly executed by all other parties
                  thereto;

         (ii)     Delivery by each of the  Subscribers of the Purchase Price set
                  forth in Schedule A as payment in full for the purchase of the
                  Securities;

         (iii)    All  representations and warranties of each of the Subscribers
                  contained  herein  shall  remain  true and  correct  as of the
                  Closing Date; and

         (iv)     The Company shall have obtained all permits and qualifications
                  required by any state for the offer and sale of the Notes,  or
                  shall have the  availability of exemptions  therefrom.  At the
                  Closing Date, the sale and issuance of the Securities shall be
                  legally permitted by all laws and regulations to which each of
                  the Subscribers and the Company are subject.

         Section 8.  CONDITIONS  TO  SUBSCRIBER'S  OBLIGATION  TO PURCHASE.  The
Company  understands  that each of the  Subscriber's  obligation to purchase the
Securities is conditioned upon:


                                      -11-



<PAGE>

         (i)      Acceptance  by  the  Company  of  each  of  the   Subscriber's
                  Subscription Agreement in the form hereof and due execution by
                  all parties of the Exhibits hereto;

         (ii)     Delivery  into escrow of the original  Securities as described
                  herein;

         (iii)    All  representations  and warranties of the Company  contained
                  herein shall remain true and correct in all material  respects
                  as of the Closing Date;

         (iv)     The Company shall have obtained all permits and qualifications
                  required by any state for the offer and sale of the Securities
                  or shall have the availability of exemptions therefrom. At the
                  Closing Date, the sale and issuance of the Securities shall be
                  legally  permitted  by all laws and  regulations  to which the
                  Company and each of the Subscribers are subject.

         Section 9.  MISCELLANEOUS.

         9.1      GOVERNING  LAW/JURISDICTION.  This Agreement will be construed
and  enforced in  accordance  with and  governed by the laws of the State of New
York,  except for matters arising under the Act, without reference to principles
of conflicts of law. Each of the parties  consents to the jurisdiction of the US
District Court for the Southern  District of the State of New York in connection
with any dispute arising under this Agreement and hereby waives,  to the maximum
extent  permitted by law, any objection,  including any objection based on forum
non  conveniens,  to the bringing of any such  proceeding in such  jurisdiction.
Each party  hereby  agrees  that if another  party to this  Agreement  obtains a
judgment against it in such a proceeding, the party which obtained such judgment
may  enforce  same by  summary  judgment  in the  courts of any state or country
having jurisdiction over the party against whom such judgment was obtained,  and
each party hereby waives any defenses available to it under local law and agrees
to the enforcement of such a judgment.  Each party to this Agreement irrevocably
consents  to the  service of process in any such  proceeding  by the  mailing of
copies thereof by registered or certified mail,  postage prepaid,  to such party
at its address set forth  herein.  Nothing  herein shall affect the right of any
party to serve process in any other manner permitted by law.

         9.2      CONFIDENTIALITY.  The  Company  and  each  of the  Subscribers
agrees to keep confidential and not to disclose to or use for the benefit of any
third party the terms of this Agreement (including the names of the Subscribers)
or any other information which at any time is communicated by the other party as
being  confidential  without  the prior  written  approval  of the other  party;
provided,  however, that this provision shall not apply to information which, at
the time of  disclosure,  is already part of the public domain (except by breach
of this Agreement) and information  which is required to be disclosed by law. If
for  any  reason  the  transactions  contemplated  by  this  Agreement  are  not
consummated,  each of the  parties  hereto  shall  keep  confidential  any  such
information  obtained  from  any  other  party,   including  the  names  of  the
Subscribers  (except  information  publicly  available or in such party's domain
prior to the date  hereof,  and  except as  required  by court  order) and shall
promptly return to the other parties all schedules, documents, instruments, work
papers or other

                                      -12-


<PAGE>

written information,  without retaining copies thereof,  previously furnished by
it as a result of this Agreement or in connection herewith.

         9.3      FACSIMILE/COUNTERPARTS/ENTIRE  AGREEMENT.  Except as otherwise
stated herein, in lieu of the original, a facsimile  transmission or copy of the
original shall be as effective and  enforceable as the original.  This Agreement
may be executed in counterparts  which shall be considered an original  document
and which together shall be considered a complete  document.  This Agreement and
Exhibits hereto  constitute the entire agreement between the Subscribers and the
Company with respect to the subject matter hereof.

         9.4      SEVERABILITY.   In  the  event  that  any  provision  of  this
Agreement  becomes or is declared  by a court of  competent  jurisdiction  to be
illegal,  unenforceable or void, this Agreement shall continue in full force and
effect  without said  provision;  provided  that no such  severability  shall be
effective if it materially changes the economic benefit of this Agreement to any
party.

         9.5      RELIANCE BY COMPANY. Each of the Subscribers represents to the
Company that the  representations  and warranties of each  Subscriber  contained
herein  are  complete  and  accurate  and may be relied  upon by the  Company in
determining the availability of an exemption from registration under federal and
state securities laws in connection with a private offering of securities.

         9.6      LEGAL FEES AND EXPENSES. Each of the parties shall pay its own
fees and expenses  (including the fees of any accountants,  appraisers or others
engaged by such party) in connection  with this  Agreement and the  transactions
contemplated hereby.

         9.7      AUTHORIZATION.  Each of the parties hereto represents that the
individual   executing   this   Agreement  on  its  behalf  has  been  duly  and
appropriately authorized to execute the Agreement.

         9.8      NOTICES.  All notices, demands, requests, consents, approvals,
and other  communications  required or permitted  hereunder  shall be in writing
and, unless otherwise  specified herein,  shall be (i) personally  served,  (ii)
deposited  in the mail,  registered  or  certified,  return  receipt  requested,
postage  prepaid,  (iii) delivered by reputable air courier service with charges
prepaid, or (iv) transmitted by hand delivery, telegram, or facsimile, addressed
as set forth below or to such other  address as such party shall have  specified
most recently by written notice. Any notice or other  communication  required or
permitted to be given hereunder shall be deemed effective (a) upon hand delivery
or  delivery  by  facsimile,   with  accurate  confirmation   generated  by  the
transmitting  facsimile  machine,  at the address or number designated below (if
delivered on a business day during normal business hours where such notice is to
be received),  or the first  business day following  such delivery (if delivered
other than on a business day during normal  business  hours where such notice is
to be received), (b) on the second business day following the date of mailing by
reputable  courier service,  fully prepaid,  addressed to such address,  or upon
actual receipt of such mailing,  whichever shall first occur or (c) on the fifth
business day following date of mailing by registered or certified  mail,  return
receipt requested,  postage prepaid,  addressed to such address,  or upon actual
receipt of such  mailing,  whichever  shall first occur.  The addresses for such
communications shall be:

                                      -13-



<PAGE>

         (i)      If to the Company:

                           Datametrics Corporation
                           25B Hanover Road No. 3305
                           Florham Park, NJ 07932
                           Attn:  Daniel P. Ginns, CEO
                           Telephone: (973) 377-3900
                           Facsimile:  (973) 377-5736

                  With a copy to:

                           Lane Altman & Owens LLP
                           101 Federal Street
                           Boston, MA 02110
                           Attn: Jeffrey S. Wieand
                           Telephone:  (617) 345-9800
                           Facsimile:  (617) 345-0400

         (ii)     If to the Subscribers,  at the addresses and numbers listed on
                  Schedule A annexed hereto.

                  Any party  hereto may from time to time  change its address or
                  facsimile  number for notices  under this Section by giving at
                  least ten (10)  days'  prior  written  notice of such  changed
                  address or facsimile number to the other party hereto.

         9.9      AMENDMENTS  AND WAIVERS.  Any term of this Agreement or of the
Notes may be amended and the  observance of any term of this Agreement or of the
Notes may be waived  (either  generally or in a  particular  instance and either
retroactively or prospectively) only with the written consent of the Company and
the holders of at least  seventy-five  percent (75%) in principal  amount of the
Notes at the time  outstanding,  provided  that (a)  without  the prior  written
consent  of the  holders  of all the  Notes  at the  time  outstanding,  no such
amendment or waiver shall (i) extend the fixed  maturity or reduce the principal
amount of, or reduce the rate or extend the time of payment of  interest  on, or
reduce the amount or extend  the time of  payment  of any  principal  or premium
payable  on any  redemption  or  prepayment  of,  any  Note or (ii)  reduce  the
aforesaid  percentage of the principal  amount of the Notes the holders of which
are required to consent to any such amendment or waiver.

         9.10     PRO  RATA  PAYMENTS.   All  interest  payments  and  payments,
redemptions or prepayments of principal (and premium, if any) on the Notes shall
be made and applied pro rata on all Notes outstanding.

                  [Remainder of Page Intentionally Left Blank]

                            [Signature Page Follows]

                                      -14-




<PAGE>

         IN WITNESS WHEREOF,  this 10% Subordinated Note Subscription  Agreement
was duly executed on the date first written below.

Agreed to and Accepted as of
this ____ day of December, 1998


DATAMETRICS CORPORATION



DATAMETRICS CORPORATION


By: 
    -------------------------------
    Name: 
    Title:  
           


                                           LITTLE WING, L.P.


                                           By: 
                                              ----------------------------------
                                              Name: 
                                              Title:


                                           TRADEWINDS FUND LTD.


                                           By:  
                                              ----------------------------------
                                              Name: 
                                              Title:


                                           LITTLE WING TOO, L.P.


                                           By:  
                                              ----------------------------------
                                              Name: 
                                              Title:


                                           THE CUTTYHUNK FUND LIMITED


                                           By:  
                                              ----------------------------------
                                              Name: 
                                              Title: 


                                           TONGA PARTNERS, L.P.


                                           By:  
                                              ----------------------------------
                                              Name: 
                                              Title:


                                      -15-


<PAGE>

<TABLE>
<CAPTION>
                                                        SCHEDULE A

<S>                                        <C>                                 <C>                       <C>

PURCHASERS                                  PURCHASE PRICE                      CLOSING FEE               NUMBER OF WARRANTS


LITTLE WING, L.P.

Little Wing, L.P.                           $933,750 of 7%
c/o Quilcap Corp.                           Convertible Debentures
375 Park Avenue, Suite 1404
New York, New York  10152                   $263,000 of Senior
                                            Subordinated Debentures

                                            ($39,220 Interest Due on Notes
                                            and Debentures)                     526,152                   296,634
                                                                                -------                   -------

TRADEWINDS FUND LTD.

Tradewinds Fund Ltd.                        $715,000 of 7%
c/o Quilcap Corp.                           Convertible Debentures
375 Park Avenue, Suite 1404
New York, New York  10152                   $210,000 of Senior
                                            Subordinated Debentures

                                            ($30,340 Interest Due on Notes
                                            and Debentures)                     406,735                   229,281
                                                                                -------                   -------

LITTLE WING TOO, L.P.

Little Wing Too, L.P.                       $101,250 of 7%
c/o Quilcap Corp.                           Convertible Debentures
375 Park Avenue, Suite 1404
New York, New York  10152                   $27,000 of Senior
                                            Subordinated Debentures

                                            ($4,440 Interest Due on Notes
                                            and Debentures)                     56,913                    31,845
                                                                                ------                    ------

THE CUTTYHUNK FUND LIMITED

The Cuttyhunk Fund Limited                  $350,000
73 Front Street                             Cash                                70,000                    84,000
                                            ----                                ------                    ------
Hamilton, HM 12 Bermuda

TONGA PARTNERS, L.P.

Tonga Partners, L.P.                        $650,000                            130,000                   156,000
                                                                                -------                   -------
600 California Street, Floor 14             Cash
San Francisco, California 94108

Totals:                                     $3,324,000                          1,189,800 warrants        797,760

</TABLE>
                                      -16-




<PAGE>


                                  SCHEDULE 3.8



         A judgment against the Company was entered on September 28, 1998 in the
amount of  approximately  $1,300,000 in favor of certain former  officers of the
Company. The Company plans to appeal the judgment.

                                      -17-






                                                                     EXHIBIT 4.5
                                                                     -----------

THIS NOTE IS ISSUED  WITHOUT  REGISTRATION  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE "ACT"),  OR APPLICABLE  STATE SECURITIES LAWS. THIS NOTE MAY NOT BE
SOLD,  TRANSFERRED OR OTHERWISE DISPOSED OF, IN WHOLE OR IN PART, IN THE ABSENCE
OF SUCH REGISTRATION UNLESS DATAMETRICS CORPORATION (THE "COMPANY") HAS RESERVED
THE  WRITTEN  OPINION  OF THE  COMPANY'S  COUNSEL  OR OTHER  COUNSEL  REASONABLY
SATISFACTORY  TO THE COMPANY THAT,  AFTER  INVESTIGATION  OF THE RELEVANT FACTS,
SUCH  COUNSEL  IS  OF  THE  OPINION  THAT  SUCH  TRANSACTION  DOES  NOT  REQUIRE
REGISTRATION OF SUCH  SECURITIES  UNDER THE ACT OR APPLICABLE  STATE  SECURITIES
LAWS.


                             DATAMETRICS CORPORATION


                         10% SUBORDINATED NOTE DUE 2000


$_______                                           Issue Date: December 24, 1998
 


         The undersigned, DATAMETRICS CORPORATION, a Delaware corporation having
its chief  executive  office at 25B Hanover  Road,  Florham  Park, NJ 07932 (the
"Company"),  for value received, hereby promises to pay to ____________________,
or registered  assigns (the "Holder"),  at the principal office of the Holder or
at such  other  place as the  Holder  may  designate  by  written  notice to the
Company,  the principal sum of ____________________________________  ($_______),
together  with all accrued  interest from and after the date hereof then unpaid,
on December  24,  2000,  (the"Maturity  Date"),  or earlier as shall be provided
herein.  The unpaid principal amount hereof shall accrue interest at the rate of
ten  percent  (10%) per annum  from and after the issue  date  hereof  until all
unpaid principal and interest shall be paid in full. The Company hereby promises
to pay  interest on the  principal  amount of this Note  quarterly in arrears on
each March 24, June 24,  September  24 and December 24 of each year prior to the
Maturity Date, unless prepaid earlier at the option of the Company in accordance
with Section 3 hereof.  Interest will be computed on the basis of a 360-day year
of twelve  30-day  months.  If any  payment  shall  become  due  hereunder  on a
Saturday,  Sunday or other day on which banking institutions in the State of New
York are authorized to close,  the due date hereof shall be extended to the next
day on which such banking institutions are not authorized to close.


         The Company has also  issued this day in  connection  with the issue of
the 10%  Subordinated  Notes due 2000,  warrants  to purchase  an  aggregate  of
797,760  shares of Common  Stock of the  Company  exercisable  3,000  shares per
quarter for each $100,000 in principal amount of 10% Subordinated Notes due 2000
purchased and then outstanding.

                  SECTION  1.      DEFINITION  OF SENIOR DEBT.  The term "Senior
Debt"  shall  mean and  consist  of all  present  and  future  indebtedness  and
liabilities  of the Company  (contingently  or  otherwise) to Imperial Bank (the
"Senior Lender") pursuant to the terms of that certain Loan and



                                       -1-

<PAGE>

Security  Agreement  dated  March 4, 1996,  by and  between  the Company and the
Senior  Lender  as  amended  from  time to  time,  and  related  agreements  and
instruments (collectively,  the "LOAN DOCUMENTS") and any increase, refinancing,
refunding or replacement of all or any part of such indebtedness.


                  SECTION  2.       SUBSCRIPTION  AGREEMENT. This Note is issued
pursuant to a 10% Subordinated Note Subscription  Agreement dated as of December
___, 1998 among the Company and the Holders (the "Subscription Agreement").


                  SECTION  3.       SUBORDINATION  OF NOTES.  The  Company,  for
itself,  its  successors and assigns,  covenants and agrees,  and each holder of
this Note, by its  acceptance  hereof  likewise  covenants and agrees,  that the
obligations,  liability and  indebtedness of the Company  evidenced by this Note
and the payment of the  principal  amount  hereof and interest  thereon shall be
subordinate in right of payment, to the extent and in the manner hereinafter set
forth,  to the prior payment and  satisfaction  in full of all Senior Debt,  and
each holder of this Note will not,  without the express prior written consent of
the Senior  Lender,  take or  receive,  and the Company  will not make,  give or
permit, directly or indirectly, by set-off, redemption, purchase or in any other
manner,  any payment on,  whether of interest or  principal  or security for the
whole or any part of, the obligations evidenced by this Note; PROVIDED,  HOWEVER
that so long as no event of default  under the Senior  Debt shall have  occurred
and then be continuing or would occur as a result of, or after giving effect to,
such  payment,  the Company may make,  and the holder of this Note may  receive,
quarterly  payments in arrears of interest  accrued under this Note.  Except for
payments  permitted by this Section 3, no payment or distribution of any kind or
character,   whether  in  cash,  property  or  securities  (including,   without
limitation,  proceeds or collateral for the obligations evidenced by this Note),
which, but for the subordination provisions contained herein, would otherwise be
payable  or  deliverable  to the Holder  upon or in  respect of the  obligations
evidenced by this Note,  shall be paid to the Holder,  and,  except for payments
permitted  by this  Section 3, the Holder  shall not  receive or accept any such
payment or  distribution  or any benefit  therefrom  unless and until the Senior
Debt shall have been fully paid and satisfied.  Without  limiting the generality
of the foregoing  provisions of this Section 3, in the event of any liquidation,
termination,  revocation or other winding-up of the Company,  or in the event of
any  receivership,   insolvency,   reorganization  or  bankruptcy   proceedings,
assignment  for the benefit of  creditors  or any  proceeding  by or against the
Company for any relief under any bankruptcy, reorganization or insolvency law or
laws, federal or state, or any law, federal or state,  relating to the relief of
debtors, readjustment of indebtedness,  reorganization, composition or extension
of  indebtedness,  then,  and in any such event,  all Senior Debt shall first be
paid in full,  before  any  payment or  distribution  is made in respect of this
Note, and any payment or distribution of any kind or character, whether in cash,
property or securities  (including,  without limitation,  proceeds or collateral
for this Note),  which, but for the subordination  provisions  contained herein,
would  otherwise be payable or  deliverable  to the Holder upon or in respect of
this Note,  shall  instead by paid over or delivered to the Senior Lender or its
representatives if the Senior Debt has not been paid in full and satisfied,  and
the Holder  shall not receive any such  payment or  distribution  or any benefit
therefrom  unless  and until the  Senior  Debt  shall  have been  fully paid and
satisfied.

                  SECTION  4.       PREPAYMENTS.  Subject  to  the  restrictions
contained  in Section 3 hereof,  the  Company  may prepay at any time all or any
part of the principal amount owing with respect to this




                                       -2-

<PAGE>

Note,  which  payment of  principal  shall  include  the unpaid  interest on the
principal amount repaid through the date of repayment, without penalty, but at a
premium  equal to 102% of the  principal  amount so  repaid,  provided  that the
Company may not prepay less than 25% of the  principal  amount of this Note then
outstanding.

                  SECTION  5.      EXCHANGE  OF NOTES. The Company shall keep at
its office a register in which the Company shall provide for the registration of
this Note and for the  registration  of  exchange  of this Note.  Subject to the
restrictions  on  this  Note  provided  elsewhere  herein,  and  subject  to the
restrictions of applicable  securities and other laws, the registered  holder of
this Note  may,  at its  option  and  either  in  person  or by duly  authorized
attorney,  surrender the same at such office, and without expense to such holder
(other than transfer taxes, if any),  receive in exchange therefor a Note, dated
as of the date  from  which  unpaid  interest  has been  accrued  on the Note so
exchanged,  in the principal  amount hereof,  and registered in the name of such
person or registered assign, as may be designated by such holder.  Every Note so
made and  delivered in exchange for this Note shall in all other  respects be in
the same form and have the same terms as this Note.  The  Company  may treat the
person in whose  name this Note is  registered  as the owner and  holder of this
Note for the purpose of making  payment of  principal  of, and interest on, this
Note and for all other  purposes  whatsoever,  whether or not this Note shall be
overdue, and the Company shall not be affected by notice to the contrary.

                  SECTION  6.      LOSS,  THEFT,  DESTRUCTION  OR  MUTILATION OF
THIS NOTE.  Upon receipt by the Company of evidence  reasonably  satisfactory to
the Company of the loss, theft,  destruction or mutilation of this Note, and, in
the case of loss,  theft or  destruction,  of indemnity  or security  reasonably
satisfactory  to the  Company,  and upon  reimbursement  to the  Company  of all
reasonable  expenses  incidental  thereto,  or,  in  case  of  mutilation,  upon
surrender and cancellation of this Note, the Company will make and deliver a new
Note of like  tenor,  in lieu of this  Note.  Any  Note  made and  delivered  in
accordance  with the  provisions of this Section 6 shall be dated as of the date
to which interest has been paid on this Note.

                  SECTION  7.      TRANSFER OF NOTE. The holder of this Note, by
its  acceptance  hereof,  agrees that it will not sell,  transfer  or  otherwise
dispose of this Note, in whole or in part, in the absence of registration  under
the  Securities  Act of 1933,  as amended  (the  "Act"),  and  applicable  state
securities  laws,  unless the Company has  received  the written  opinion of its
counsel (or other counsel  reasonably  satisfactory to the Company) that,  after
investigation  of the relevant  facts,  that such  transaction  does not require
registration under said Act or applicable state securities laws.

                  SECTION  8.      EVENTS OF DEFAULT.  The entire unpaid portion
of this Note may be  declared  immediately  due and  payable by a holder of this
Note,  by written  notice from such holder to the Company upon the happening and
continuing of any of the following events (each an "Event of Default"):

                  (a) The Company  shall  default in the payment of principal or
interest  under this Note when the same shall  become due and  payable  and such
default  shall  remain  uncured  for ten (10) days or more after  notice of such
default is given to the Company by such holder;




                                       -3-

<PAGE>


                  (b) The  Company or any  present or future  subsidiary  of the
Company shall make an assignment  for the benefit of creditors or shall admit in
writing  its  inability  to pay its debts as they  become  due,  or shall file a
voluntary  petition  in  bankruptcy,  or  shall be  adjudicated  a  bankrupt  or
insolvent,   or  shall   file  any   arrangement,   composition,   readjustment,
liquidation,  dissolution or similar relief under any present or future statute,
law or regulation  pertaining to insolvency or creditors'  rights, or shall file
any answer admitting the material  allegations of a petition filed against it in
any such proceeding, or shall seek or consent to or acquiesce in the appointment
of any trustee,  receiver or liquidator of it or all or any substantial  part of
its properties; or

                  (c) Any proceeding is filed against the Company or any present
or future subsidiary of the Company,  seeking any  reorganization,  arrangement,
composition, readjustment,  liquidation, dissolution or similar relief under any
present  or  future  statute,  law  or  regulation  pertaining  to  solvency  or
creditors'   rights,   and  such  proceeding   continues  for  sixty  (60)  days
undismissed, unstayed, unbonded and discharged.

                  SECTION 9.      REIMBURSEMENT. The Company agrees to reimburse
the  holder of this Note for all its costs and  expenses,  including  reasonable
attorneys'  fees and  disbursements,  expended  in  collecting  any  amounts due
hereunder or in otherwise enforcing any of its rights hereunder.

                  SECTION 10.     NOTICES. All notices and  other communications
required  or  permitted  to be given in respect of this Note shall be in writing
and shall be given as provided in the Debt Exchange Agreement.

                  SECTION 11.     GOVERNING LAW. This Note has been executed and
delivered  in the State of New York and shall be  governed by and  construed  in
accordance  with the laws of the  State of New  York  without  reference  to the
principles of conflicts of law thereof.

                  SECTION  12.    JURISDICTION.  The Company hereby  irrevocably
consents and submits to, and each holder of this Note, by its acceptance hereof,
likewise hereby irrevocably consents and submits to, the exclusive  jurisdiction
of the United  States  District  Court for the Southern  District of New York in
connection with any proceeding  arising out of or relating to this Note,  waives
any  objection to venue in such District  (unless such court lacks  jurisdiction
with respect to such proceeding in which case, the Company irrevocably  consents
and submits to, and each holder of this Note, by its acceptance hereof, likewise
irrevocably  consents and submits to, the  jurisdiction  of the Supreme Court of
the  State of New  York in  connection  with  such  proceeding  and  waives  any
objection  to venue in New York  County,  State of New York),  and  agrees  that
service of any  summons,  complaint,  notice or other  process  relating to such
proceeding may be effected in the manner provided by Section 10 hereof.

                  SECTION 13.     SUCCESSORS AND ASSIGNS.  All of the covenants,
stipulations,  proses and agreements of the Company set forth in this Note shall
be binding on its successor and assigns, whether so expressed or not.

                  SECTION  14.    HEADINGS.  The section  headings  contained in
this Note are inserted for  reference  purposes  only and shall not be deemed to
constitute a part hereof.



                                       -4-

<PAGE>



                  SECTION  15.      WAIVERS.  The  terms of this Note may not be
amended,  modified,  waived or eliminated  except by a written  instrument  duly
executed by the Company and the holder of this Note.


                  IN WITNESS  WHEREOF,  the  Company  has caused this Note to be
signed in its corporate name by a duly authorized  officer and to be dated as of
the day and year first above written.


                                               DATAMETRICS CORPORATION


                                               By:
                                                  ------------------------------
                                                  Name: Daniel P. Ginns
                                                  Title: Chairman and CEO




                                       -5-




                                                                     EXHIBIT 4.6
                                                                     -----------
                          REGISTRATION RIGHTS AGREEMENT

         THIS  REGISTRATION  RIGHTS  AGREEMENT,  dated  as of  the  ____  day of
December,  1998, among the entities listed on Schedule A (collectively  referred
to as the "Holders"),  and DATAMETRICS  CORPORATION,  a corporation incorporated
under the laws of the state of  Delaware,  and  having  its  principal  place of
business at 25B Hanover Road, No. 3305, Florham Park NJ 07932 (the "Company").

         WHEREAS, the Holders are purchasing from the Company, pursuant to a 10%
Note   Subscription   Agreement   dated  the  date  hereof  (the   "Subscription
Agreement"),  an  aggregate  of  $3,324,000  Dollars  principal  amount  of  the
Company's 10%  Subordinated  Notes  ("Notes")  and warrants to purchase  797,760
shares of common stock of the Company ("Common Stock"); and

         WHEREAS,  as a condition to such  purchase,  the Holders have  required
that the Company grant to the Holders the  registration  rights set forth herein
with respect to the shares of Common Stock (collectively hereinafter referred to
as the "Stock" or "Securities" of the Company)  purchasable upon exercise of the
Warrants.

         NOW, THEREFORE, the parties hereto mutually agree as follows:

         Section 1. REGISTRABLE SECURITIES. As used herein the term "Registrable
Security"  means the Securities and any other shares of Common Stock issued upon
exercise of any other  warrants held by Holders on the date hereof issued by the
Company;  provided,  however,  that with respect to any  particular  Registrable
Security, such security shall cease to be a Registrable Security when, as of the
date of  determination,  (i) it has been registered  under the Securities Act of
1933, as amended (the "1933 Act"),  (ii)  registration  under the 1933 Act is no
longer  required for the  immediate  public  distribution  of such security as a
result of the provisions of Rule 144 promulgated under the 1933 Act, or (iii) it
has ceased to be outstanding. The term "Registrable Securities" means any and/or
all of the Securities falling within the foregoing  definition of a "Registrable
Security."   In  the  event  of  any  merger,   reorganization,   consolidation,
recapitalization  or other change in corporate  structure  affecting  the Common
Stock, such adjustment shall be made in the definition of "Registrable Security"
as is  appropriate in order to prevent any dilution or enlargement of the rights
granted pursuant to this Section 1.

         Section 2.  RESTRICTIONS  ON  TRANSFER.  The  Holders  acknowledge  and
understand that prior to the  registration of the Securities as provided herein,
the Securities are  "restricted  securities" as defined in Rule 144  promulgated
under the Act. The Holders  understand  that no  disposition  or transfer of the
Securities  may be made by the  Holders  in the  absence  of (i) an  opinion  of
counsel to the Company that such transfer may be made without registration under
the 1933 Act or (ii) such registration.

                                       


<PAGE>

         Section 3.  REGISTRATION RIGHTS.

         (a)      The  Company  agrees  that it will  use its  best  efforts  to
                  prepare and file with the Securities  and Exchange  Commission
                  ("Commission"),  within ninety (90) days after the date hereof
                  (the "Subscription Date"), a registration  statement under the
                  1933 Act (the "Registration  Statement"),  at the sole expense
                  of the Company (except as provided in Section 3(c) hereof), in
                  respect of all  holders of  Registrable  Securities,  so as to
                  permit a  registered  issuance of the  Registrable  Securities
                  under  the Act.  The  Company  shall  cause  the  Registration
                  Statement to become  effective within one hundred eighty (180)
                  days from  Subscription  Date. The number of shares designated
                  in the  Registration  Statement to be registered  shall be one
                  hundred  (100%)  percent (or such higher number as the Company
                  determines) of the number of Securities that would be required
                  if all  the  Registrable  Securities  were  issued  on the day
                  before the filing of the Registration Statement.

         (b)      The  Company   will   maintain   the   effectiveness   of  the
                  Registration Statement or post-effective amendment filed under
                  this  Section  3 hereof  current  under the 1933 Act until the
                  earlier of (i) the date that all of the Registrable Securities
                  have been sold pursuant to the  Registration  Statement,  (ii)
                  the date the  holders  thereof  receive  an opinion of counsel
                  that all of the  Registrable  Securities may be sold under the
                  provisions of Rule 144 (without  volume  limitation)  or (iii)
                  five years after the Subscription Date.

         (c)      All fees,  disbursements and out-of-pocket  expenses and costs
                  incurred by the Company in connection with the preparation and
                  filing of the Registration  Statement under  subparagraph 3(a)
                  and in complying with applicable  securities and Blue Sky laws
                  (including,  without limitation, all attorneys' fees) shall be
                  borne  by the  Company.  The  Holders  shall  bear the cost of
                  underwriting discounts and commissions,  if any, applicable to
                  the Registrable  Securities  being registered and the fees and
                  expenses of its counsel.  The Company shall qualify any of the
                  Registrable  Securities for sale in such states as each Holder
                  reasonably designates and shall furnish indemnification in the
                  manner  provided  in Section 6 hereof.  However,  the  Company
                  shall  not be  required  to  qualify  any  of the  Registrable
                  Securities  for sale in any state which will require an escrow
                  or  other  restriction  relating  to the  Company  and/or  the
                  sellers.  The  Company at its  expense  will supply the Holder
                  with copies of the  Registration  Statement and the prospectus
                  or  offering  circular  included  therein  and  other  related
                  documents in such quantities as may be reasonably requested by
                  the Holders.

         (d)      The Company shall not be required by this Section 3 to include
                  a  Holder's   Registrable   Securities  in  any   Registration
                  Statement  which is to be filed if, in the  opinion of counsel
                  for both the  Holders  and the  Company  (or,  should they not
                  agree,

                                       2


<PAGE>

                  in the opinion of another  counsel  experienced  in securities
                  law  matters  acceptable  to counsel  for the  Holders and the
                  Company) the proposed  offering or other  transfer as to which
                  such  registration  is  requested  is exempt  from  applicable
                  federal  and state  securities  laws and  would  result in all
                  transferees  obtaining  securities  which are not  "restricted
                  securities," as defined in Rule 144 under the 1933 Act.

         (e)      In the event  the  Registration  Statement  to be filed by the
                  Company  pursuant to Section  3(a) above is not filed with the
                  Commission  within ninety (90) days from the Subscription Date
                  and/or the Registration Statement is not declared effective by
                  the  Commission  within one hundred eighty (180) days from the
                  Subscription Date, then the Company will pay Holder (pro rated
                  on a daily basis), as liquidated  damages for such failure and
                  not as a penalty,  three (3%) percent of the Purchase Price of
                  the then  outstanding  Notes  held by such  Holder  each month
                  until such time as the  Registration  Statement has been filed
                  and/or  declared  effective.  Such  payment of the  liquidated
                  damages shall be made to the Holders in cash, immediately upon
                  demand, provided, however, that the payment of such liquidated
                  damages shall not relieve the Company from its  obligations to
                  register the Securities pursuant to this Section and shall not
                  relieve  the Company  from any  obligation  to pay  liquidated
                  damages.

         If the  Company  does not remit the damages to the Holders as set forth
above,  the  Company  will pay the  Holders'  reasonable  costs  of  collection,
including  reasonable attorneys fees, in addition to the liquidated damages. The
registration  of the Securities  pursuant to this provision  shall not affect or
limit Holders' other rights or remedies as set forth in this Agreement.

         (f)      No provision  contained herein shall preclude the Company from
                  selling securities  pursuant to any Registration  Statement in
                  which  it  is  required  to  include  Registrable   Securities
                  pursuant to this Section 3.

         (g)      If at any time or from time to time after the  effective  date
                  of  the  Registration  Statement,  the  Company  notifies  the
                  Holders in writing of the  existence  of a Potential  Material
                  Event (as defined in Section  3(h) below),  the Holders  shall
                  not offer or sell any Registrable  Securities or engage in any
                  other   transaction   involving  or  relating  to  Registrable
                  Securities, from the time of the giving of notice with respect
                  to a  Potential  Material  Event  until such  Holder  receives
                  written notice from the Company that such  Potential  Material
                  Event  either  has been  disclosed  to the public or no longer
                  constitutes a Potential  Material  Event;  provided,  however,
                  that the Company may not so suspend the right to such  holders
                  of  Securities  for more than one (1)  twenty  (20) day period
                  during  any  twelve  month  period,  during  the  periods  the
                  Registration  Statement  is  required  to be in  effect.  If a
                  Potential  Material  Event  shall  occur prior to the date the
                  Registration Statement is filed, then the Company's obligation
                  to file the  Registration  Statement  shall be delayed without
                  penalty for not more than twenty (20) days.  The Company  must
                  give each Holder notice in writing at least two (2)


                                       3

<PAGE>

                  business  days prior to the first day of the  blackout  period
                  relating to any potential material event.

         (h)      "Potential Material Event" means any of the following: (a) the
                  possession by the Company of material information not ripe for
                  disclosure  in a  registration  statement;  (b)  any  material
                  engagement or activity by the Company which would be adversely
                  affected by  disclosure  in a  registration  statement at such
                  time; or (c) the  Registration  Statement  would be materially
                  misleading absent the inclusion of such information.

         Section 4.  COOPERATION  WITH COMPANY.  Holders will cooperate with the
Company in all respects in  connection  with this  Agreement,  including  timely
supplying all information  reasonably requested by the Company and executing and
returning all documents reasonably requested in connection with the registration
and sale of the Registrable Securities.

         Section 5.  REGISTRATION  PROCEDURES.  If and  whenever  the Company is
required by any of the provisions of this  Agreement to effect the  registration
of any of the Registrable Securities under the Act, the Company shall (except as
otherwise provided in this Agreement), as expeditiously as possible:

         (a)      prepare  and file  with the  Commission  such  amendments  and
                  supplements to the  Registration  Statement and the prospectus
                  used in connection  therewith as may be necessary to keep such
                  registration  statement  effective  and  to  comply  with  the
                  provisions  of the Act  with  respect  to the  sale  or  other
                  disposition  of all  securities  covered by such  registration
                  statement  whenever the Holder of such securities shall desire
                  to sell or otherwise dispose of the same (including prospectus
                  supplements  with respect to the sales of securities from time
                  to time in connection with a registration  statement  pursuant
                  to Rule 415 promulgated under the Act);

         (b)      furnish  to each  Holder  such  numbers of copies of a summary
                  prospectus  or  other  prospectus,   including  a  preliminary
                  prospectus or any  amendment or supplement to any  prospectus,
                  in conformity with the requirements of the Act, and such other
                  documents,  as such Holder may reasonably  request in order to
                  facilitate  the  public  sale  or  other  disposition  of  the
                  securities owned by such Holder;

         (c)      register   and   qualify   the   securities   covered  by  the
                  Registration Statement under such other securities or blue sky
                  laws of such  jurisdictions  as the Holders  shall  reasonably
                  request  (subject to the limitations set forth in Section 3(d)
                  above),  and do any and all other acts and things which may be
                  necessary or advisable to enable each Holder to consummate the
                  public sale or other  disposition in such  jurisdiction of the
                  securities owned by such Holder, except that the Company shall
                  not for any such purpose be required to qualify to do business
                  as a foreign corporation in any jurisdiction wherein it is not
                  so qualified or to file therein any general consent to service
                  of process;

                                       4


<PAGE>

         (d)      list such  securities on the American  Stock Exchange or other
                  national  securities  exchange on which any  securities of the
                  Company are then listed,  if the listing of such securities is
                  then permitted under the rules of such exchange;

         (e)      notify each Holder of  Registrable  Securities  covered by the
                  Registration Statement, at any time when a prospectus relating
                  thereto covered by the  Registration  Statement is required to
                  be delivered  under the Act, of the  happening of any event of
                  which it has  knowledge  as a result of which  the  prospectus
                  included  in the  Registration  Statement,  as then in effect,
                  includes an untrue  statement  of a material  fact or omits to
                  state  a  material  fact  required  to be  stated  therein  or
                  necessary to make the statements therein not misleading in the
                  light of the circumstances then existing.

         Section 6.  INDEMNIFICATION.

         (a)      The Company agrees to indemnify and hold harmless the Holders,
                  and each  officer,  director or person,  if any,  who controls
                  each Holder within the meaning of the 1933 Act  ("Distributing
                  Holder") against any losses,  claims,  damages or liabilities,
                  joint  or  several  (which  shall,  for all  purposes  of this
                  Agreement,  include,  but not be  limited  to,  all  costs  of
                  defense and  investigation  and all attorneys' fees), to which
                  the Distributing Holder may become subject, under the 1933 Act
                  or  otherwise,  insofar  as such  losses,  claims,  damages or
                  liabilities  (or actions in respect  thereof)  arise out of or
                  are  based  upon  any  untrue   statement  or  alleged  untrue
                  statement of any material fact  contained in the  Registration
                  Statement,  or  any  related  preliminary  prospectus,   final
                  prospectus,  offering  circular,  notification or amendment or
                  supplement  thereto,  or arise  out of or are  based  upon the
                  omission or alleged  omission to state therein a material fact
                  required  to be  stated  therein  or  necessary  to  make  the
                  statements therein not misleading; provided, however, that the
                  Company  (i) will not be liable in any such case to the extent
                  that any such loss,  claim,  damage or liability arises out of
                  or is  based  upon  an  untrue  statement  or  alleged  untrue
                  statement  or  omission  or  alleged   omission  made  in  the
                  Registration   Statement,    preliminary   prospectus,   final
                  prospectus,  offering  circular,  notification or amendment or
                  supplement  thereto in reliance upon, and in conformity  with,
                  written   information   furnished   to  the   Company  by  the
                  Distributing  Holder,  specifically for use in the preparation
                  thereof,  or (ii) will not pay any amounts paid in  settlement
                  of any loss, claim,  damage or liability if such settlement is
                  effected  without the consent of the  Company,  which  consent
                  shall not be  unreasonably  withheld.  This Section 6(a) shall
                  not  inure to the  benefit  of any  Distributing  Holder  with
                  respect to any person  asserting such loss,  claim,  damage or
                  liability who purchased the Registrable  Securities  which are
                  the subject thereof if the  Distributing  older failed to send
                  or  give  (in  violation  of the  1933  Act or the  rules  and
                  regulations  promulgated  thereunder) a copy of the prospectus
                  contained in such Registration  Statement to such person at or
                  prior to the written  confirmation  of such person of the sale
                  of such Registrable Securities,  where the Distributing Holder
                  was

                                       5


<PAGE>

                  obligated  to do so  under  the  1933  Act  or the  rules  and
                  regulations promulgated  thereunder.  This indemnity provision
                  will be in  addition  to any  liability  which the Company may
                  otherwise have.

         (b)      Each  Distributing  Holder  agrees that it will  indemnify and
                  hold  harmless the Company,  and each  officer,  director,  or
                  person, if any, who controls the Company within the meaning of
                  the  1933  Act,  against  any  losses,   claims,   damages  or
                  liabilities  (which shall, for all purposes of this Agreement,
                  include,  but not be  limited  to,  all costs of  defense  and
                  investigation and all attorneys' fees) to which the Company or
                  any such officer,  director or  controlling  person may become
                  subject  under  the 1933  Act or  otherwise,  insofar  as such
                  losses claims,  damages or liabilities  (or actions in respect
                  thereof)  arise out of or are based upon any untrue  statement
                  or alleged untrue  statement of any material fact contained in
                  the  Registration   Statement,   or  any  related  preliminary
                  prospectus, final prospectus,  offering circular, notification
                  or amendment  or  supplement  thereto,  or arise out of or are
                  based  upon the  omission  or the  alleged  omission  to state
                  therein a  material  fact  required  to be stated  therein  or
                  necessary to make the statements  therein not misleading,  but
                  in each case only to the extent that such untrue  statement or
                  alleged untrue  statement or omission or alleged  omission was
                  made in the Registration  Statement,  preliminary  prospectus,
                  final prospectus, offering circular, notification or amendment
                  or  supplement  thereto in reliance  upon,  and in  conformity
                  with,  written  information  furnished  to the Company by such
                  Distributing  Holder,  specifically for use in the preparation
                  thereof.  This indemnity  provision will be in addition to any
                  liability which the Distributing Holder may otherwise have.

         (c)      Promptly  after  receipt by an  indemnified  party  under this
                  Section 6 of notice of the  commencement  of any action,  such
                  indemnified party will, if a claim in respect thereof is to be
                  made  against the  indemnifying  party  under this  Section 6,
                  notify the indemnifying party of the commencement thereof; but
                  the  omission  so to notify  the  indemnifying  party will not
                  relieve the indemnifying party from any liability which it may
                  have  to  any  indemnified  party  otherwise  than  as to  the
                  particular  item as to  which  indemnification  is then  being
                  sought  solely  pursuant  to this  Section 6. In case any such
                  action  is  brought  against  any  indemnified  party,  and it
                  notifies the indemnifying  party of the commencement  thereof,
                  the  indemnifying  party will be entitled to  participate  in,
                  and,  to the extent that it may wish,  jointly  with any other
                  indemnifying  party  similarly  notified,  assume the  defense
                  thereof,  subject to the  provisions  herein  stated and after
                  notice from the indemnifying  party to such indemnified  party
                  of  its  election  so  to  assume  the  defense  thereof,  the
                  indemnifying  party  will not be  liable  to such  indemnified
                  party  under  this  Section 6 for any legal or other  expenses
                  subsequently  incurred by such indemnified party in connection
                  with  the  defense  thereof  other  than  reasonable  costs of
                  investigation,  unless the indemnifying party shall not pursue
                  the action to its final conclusion. The

                                       6

<PAGE>

                  indemnified  party  shall  have the right to  employ  separate
                  counsel in any such action and to  participate  in the defense
                  thereof,  but the fees and expenses of such counsel  shall not
                  be  at  the   expense  of  the   indemnifying   party  if  the
                  indemnifying  party has assumed the defense of the action with
                  counsel  reasonably  satisfactory  to the  indemnified  party;
                  provided  that if the  indemnified  party is the  Distributing
                  Holder,  the fees and expenses of such counsel shall be at the
                  expense of the  indemnifying  party if (i) the  employment  of
                  such counsel has been  specifically  authorized  in writing by
                  the indemnifying  party, or (ii) the named parties to any such
                  action  (including  any  impleaded  parties)  include both the
                  Distributing   Holder  and  the  indemnifying  party  and  the
                  Distributing  Holder  shall have been  advised by such counsel
                  that there may be one or more legal defenses  available to the
                  indemnifying  party  different  from or in  conflict  with any
                  legal  defenses  which may be  available  to the  Distributing
                  Holder (in which case the  indemnifying  party  shall not have
                  the right to assume the  defense  of such  action on behalf of
                  the Distributing  Holder, it being understood,  however,  that
                  the indemnifying  party shall, in connection with any one such
                  action  or  separate  but  substantially  similar  or  related
                  actions  in the  same  jurisdiction  arising  out of the  same
                  general  allegations or circumstances,  be liable only for the
                  reasonable fees and expenses of one separate firm of attorneys
                  for the Distributing Holder, which firm shall be designated in
                  writing by the  Distributing  Holder).  No  settlement  of any
                  action against an indemnified  party shall be made without the
                  prior written consent of the indemnified  party, which consent
                  shall not be unreasonably withheld.

         Section 7.  CONTRIBUTION.  In order to provide  for just and  equitable
contribution  under the 1933 Act in any case in which (i) the indemnified  party
makes a claim for indemnification pursuant to Section 6 hereof but is judicially
determined  (by the entry of a final  judgment or decree by a court of competent
jurisdiction  and the  expiration  of time to appeal  or the  denial of the last
right of appeal)  that such  indemnification  may not be  enforced  in such case
notwithstanding the fact that the express provisions of Section 6 hereof provide
for indemnification in such case, or (ii) contribution under the 1933 Act may be
required  on the  part  of any  indemnified  party,  then  the  Company  and the
applicable Distributing Holder shall contribute to the aggregate losses, claims,
damages  or  liabilities  to which  they may be subject  (which  shall,  for all
purposes of this Agreement, include, but not be limited to, all costs of defense
and  investigation  and  all  attorneys'  fees),  in  either  such  case  (after
contribution  from  others) on the basis of relative  fault as well as any other
relevant  equitable  considerations.  The relative  fault shall be determined by
reference to, among other things, whether the untrue or alleged untrue statement
of a material fact or the omission or alleged  omission to state a material fact
relates to information supplied by the Company on the one hand or the applicable
Distributing  Holder  on the  other  hand,  and the  parties'  relative  intent,
knowledge,  access to  information  and  opportunity  to correct or prevent such
statement or  omission.  The Company and the  Distributing  Holder agree that it
would not be just and equitable if contribution  pursuant to this Section 7 were
determined by pro rata  allocation  or by any other method of  allocation  which
does  not take  account  of the  equitable  considerations  referred  to in this
Section 7. The amount paid or

                                       7

<PAGE>


payable by an indemnified  party as a result of the losses,  claims,  damages or
liabilities (or actions in respect thereof)  referred to above in this Section 7
shall be deemed to include any legal or other  expenses  reasonably  incurred by
such  indemnified  party in connection with  investigating or defending any such
action or claim.  No person guilty of fraudulent  misrepresentation  (within the
meaning of Section 11(f) of the 1933 Act) shall be entitled to contribution from
any person who was not guilty of such fraudulent misrepresentation.

         Section  8.  NOTICES.  All  notices,   demands,   requests,   consents,
approvals,  and other communications required or permitted hereunder shall be in
writing and, unless otherwise specified herein,  shall be (i) personally served,
(ii) deposited in the mail,  registered or certified,  return receipt requested,
postage  prepaid,  (iii) delivered by reputable air courier service with charges
prepaid, or (iv) transmitted by hand delivery, telegram, or facsimile, addressed
as set forth below or to such other  address as such party shall have  specified
most recently by written notice. Any notice or other  communication  required or
permitted to be given hereunder shall be deemed effective (a) upon hand delivery
or  delivery  by  facsimile,   with  accurate  confirmation   generated  by  the
transmitting  facsimile  machine,  at the address or number designated below (if
delivered on a business day during normal business hours where such notice is to
be received),  or the first  business day following  such delivery (if delivered
other than on a business day during normal  business  hours where such notice is
to be received), (b) on the second business day following the date of mailing by
reputable  courier service,  fully prepaid,  addressed to such address,  or upon
actual receipt of such mailing, whichever shall first occur, or (c) on the fifth
business day  following  the date of mailing by certified  or  registered  mail,
return receipt requested,  postage prepaid,  addressed to such address,  or upon
actual receipt of such mailing,  whichever shall first occur.  The addresses for
such communications shall be:

                                       8


<PAGE>


         If to Datametrics Corporation:

                  Datametrics Corporation
                  25B Hanover Road
                  #3305
                  Florham Park, NJ 07932
                  Attn: Daniel P. Ginns, CEO
                  Facsimile: (973) 377-5736
                  Telephone: (973) 377-3900

         With a copy to:

                  Lane Altman & Owens LLP
                  101 Federal Street
                  Boston, MA 02110
                  Attn:  Jeffrey S. Wieand
                  Facsimile:  (617) 345-0400
                  Telephone:  (617) 345-9800

         If to the  Holders at the  addresses  set forth on  SCHEDULE A attached
hereto.

         Any party  hereto may from time to time change its address or facsimile
number for  notices  under this  Section by giving at least ten (10) days' prior
written  notice of such changed  address or facsimile  number to the other party
hereto.

         Section 9. ASSIGNMENT. This Agreement is binding upon and inures to the
benefit  of the  parties  hereto  and their  respective  heirs,  successors  and
permitted assigns. The rights granted the Holders under this Agreement shall not
be assigned without the written consent of the Company,  which consent shall not
be  unnecessarily  withheld.  In the event of a transfer  of the rights  granted
under this  Agreement,  the Holder  agrees that the Company may require that the
transferee comply with reasonable  conditions as determined in the discretion of
the Company.

         Section 10. COUNTERPARTS;  FACSIMILE; AMENDMENTS. This Agreement may be
executed  in multiple  counterparts,  each of which may be executed by less than
all of the parties and shall be deemed to be an original  instrument which shall
be enforceable  against the parties actually executing such counterparts and all
of which  together  shall  constitute  one and the same  instrument.  Except  as
otherwise  stated  herein,  in  lieu  of the  original  documents,  a  facsimile
transmission  or  copy of the  original  documents  shall  be as  effective  and
enforceable  as the  original.  This  Agreement may be amended only by a writing
executed by all parties.

         Section 11.  TERMINATION  OF  REGISTRATION  RIGHTS.  The rights granted
pursuant to this  Agreement  shall  terminate  as to each Holder (and  permitted
transferees or assignees) upon the

                                       9

<PAGE>

occurrence of any of the following:

         (a)      all Holder's  Securities  subject to this  Agreement have been
                  registered;

         (b)      all of such Holder's  Securities subject to this Agreement may
                  be  sold  without  such  registration  pursuant  to  Rule  144
                  promulgated by the SEC pursuant to the Securities Act;

         (c)      all of such Holder's  Securities subject to this Agreement can
                  be sold pursuant to Rule 144(k).

         Section 12. HEADINGS.  The headings in this Agreement are for reference
purposes only and shall not affect in any way the meaning or  interpretation  of
this Agreement.

         Section 13. GOVERNING LAW: VENUE; JURISDICTION.  This Agreement will be
construed and enforced in accordance  with and governed by the laws of the State
of New York,  except for matters  arising  under the Act,  without  reference to
principles of conflicts of law. Each of the parties consents to the jurisdiction
of the U.S.  District Court sitting in the Southern District of the State of New
York in  connection  with any dispute  arising  under this  Agreement and hereby
waives,  to the maximum extent  permitted by law, any  objection,  including any
objection based on forum non conveniens,  to the bringing of any such proceeding
in such  jurisdiction.  Each party hereby  agrees that if another  party to this
Agreement  obtains a judgment  against it in such a proceeding,  the party which
obtained such judgment may enforce same by summary judgment in the courts of any
country  having  jurisdiction  over the party  against  whom such  judgment  was
obtained,  and each party hereby waives any defenses available to it under local
law and  agrees  to the  enforcement  of such a  judgment.  Each  party  to this
Agreement  irrevocably consents to the service of process in any such proceeding
by the  mailing of copies  thereof by  registered  or  certified  mail,  postage
prepaid,  to such party at its address set forth  herein.  Nothing  herein shall
affect the right of any party to serve process in any other manner  permitted by
law.

         Section 14. SEVERABILITY.  If any provision of this Agreement shall for
any reason be held invalid or unenforceable, such invalidity or unenforceability
shall  not  affect  any  other  provision  hereof  and this  Agreement  shall be
construed as if such invalid or unenforceable provision had never been contained
herein.

         Section 15.  CAPITALIZED  TERMS.  All  capitalized  terms not otherwise
defined  herein  shall have the  meaning  assigned  to them in the  Subscription
Agreement.

         Section  16.  ENTIRE  AGREEMENT.  This  Agreement,  together  with  all
documents  referenced  herein,  embody the entire  agreement  and  understanding
between  the  parties  hereto  with  respect to the  subject  matter  hereof and
supersedes all prior oral or written agreements and  understandings  relating to
the subject matter hereof. No statement,  representation,  warranty, covenant or
agreement

                                       10

<PAGE>


of any kind not expressly set forth in this Agreement  shall affect,  or be used
to  interpret,  change or restrict,  the express  terms and  provisions  of this
Agreement.

                [The Rest of this Page Intentionally Left Blank]

                                       11


<PAGE>


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


                                               DATAMETRICS CORPORATION
  
                                       By:
                                          --------------------------------------
                                        Daniel P. Ginns, Chief Executive Officer


                                               LITTLE WING, L.P.

                                       By:
                                          --------------------------------------
                                       Name: Bic Nguyen
                                       Title: Authorized Signatory


                                               TRADEWINDS FUND LTD.

                                       By:
                                          --------------------------------------
                                       Name: Bic Nguyen
                                       Title: Authorized Signatory


                                               LITTLE WING TOO, L.P.

                                       By:
                                          --------------------------------------
                                       Name: Bic Nguyen
                                       Title: Authorized Signatory


                                               THE CUTTYHUNK FUND LIMITED

                                       By:
                                          --------------------------------------
                                       Name:
                                       Title:

                                               TONGA PARTNERS, L.P.

                                       By:
                                          --------------------------------------
                                       Name:
                                       Title:


                                       12

<PAGE>


                                   SCHEDULE A


LITTLE WING, L.P.

Little Wing, L.P.
c/o Quilcap Corp.
375 Park Avenue, Suite 1404
New York, New York  10152

TRADEWINDS FUND LTD.

Tradewinds Fund Ltd.
c/o Quilcap Corp.
375 Park Avenue, Suite 1404
New York, New York  10152

LITTLE WING TOO, L.P.

Little Wing Too, L.P.
c/o Quilcap Corp.
375 Park Avenue, Suite 1404
New York, New York  10152

THE CUTTYHUNK FUND LIMITED

The Cuttyhunk Fund Limited
73 Front Street
Hamilton, HM 12 Bermuda

TONGA PARTNERS, L.P.

Tonga Partners, L.P.
600 California Street, Floor 14
San Francisco, California 94108


                                       13



                                                                     EXHIBIT 4.7
                                                                     -----------
                             SUBSCRIPTION AGREEMENT


Datametrics Corporation
25B Hanover Road, No. 3305
Florham Park, NJ 07932

Attn:    Mr. Daniel P. Ginns
         Chairman

Ladies and Gentlemen:

         The  undersigned   ("Subscriber")   hereby  tenders  this  Subscription
Agreement  ("Agreement")  in  accordance  with  and  subject  to the  terms  and
conditions set forth herein and in the Confidential Private Placement Memorandum
of even date herewith (the "Memorandum").

         1.      SUBSCRIPTION.

         1.1.    The undersigned hereby irrevocably subscribes for and agrees to
purchase the number of shares (the "Shares") of common stock, par value $.01 per
share ("Common Stock"), of Datametrics Corporation,  a Delaware corporation (the
"Company"),  indicated on the  signature  page hereto at the purchase  price per
share set forth on such signature  page.  The  undersigned  encloses  herewith a
check or money  order  payable  to the  Company  (or has  made  payment  by wire
transfer of funds in accordance with  instructions from the Company) in the full
amount  of the  purchase  price of the  Shares  for  which  the  undersigned  is
subscribing (the "Payment").

         1.2.    The undersigned understands that each Payment by check or money
order as provided in Section 1.1 above shall be  delivered  to the Company  and,
thereafter,  such  Payment  will be held for the  undersigned's  benefit  by the
Company,  but the  undersigned  will not earn interest on any funds so held. The
Company may hold an initial  closing of the  Offering  (the  "Initial  Closing")
after  subscriptions  for at least  1,000,000  Shares have been  accepted by the
Company  (the  "Minimum  Offering").  The  Company may hold  additional  interim
closings after the Initial Closing.  Any such interim closings together with the
Initial Closing are each hereinafter  referred to as an "Additional Closing" and
shall occur on one or more dates each hereinafter  referred to as an "Additional
Closing  Date."  Upon  receipt by the Company of the  requisite  payment for all
Shares to be purchased by the subscribers  whose  subscriptions  are accepted by
the Company (each, a "Purchaser") at the Additional Closing Dates and subject to
the satisfaction of certain  conditions,  the Shares so purchased will be issued
in the  name of each  such  Purchaser,  and the name of such  Purchaser  will be
registered  on the stock  transfer  books of the Company as the record  owner of
such Shares.  The Company will issue to each Purchaser a stock  certificate  for
the Shares purchased.

         1.3.    The undersigned hereby agrees to be bound hereby upon execution
and  delivery  to the  Company  of  the  signature  page  to  this  Subscription
Agreement.  The  undersigned  understands  that the Company will not be bound to
issue any  shares  of  Common  Stock to the  undersigned,  unless  and until the
Company accepts,  on the Initial Closing Date or an Additional  Closing Date, as
the case may be, the  undersigned's  subscription  to purchase  shares of Common
Stock (the "Subscription").

         1.4.    The  undersigned  agrees that the Company  may, in its sole and
absolute  discretion,  reduce the  undersigned's  subscription  to any number of
shares of Common Stock that in the aggregate does not


<PAGE>


exceed the number of Shares of Common Stock hereby applied for without any prior
notice  to or  further  consent  by  the  undersigned.  The  undersigned  hereby
irrevocably  constitutes  and  appoints  the  Chairman or the  President  of the
Company acting singly,  in each case with full power of  substitution,  the true
and lawful agent and  attorney-in-fact  of the undersigned,  with full power and
authority in the undersigned's  name, place and stead to amend this Subscription
Agreement, including, in each case, the undersigned's signature page thereto, to
effect any of the foregoing provisions of this Section 1.4.



OFFERING MATERIAL.

         2.1.    The Subscriber represents and warrants that it is in receipt of
and that it has carefully read and understands the following items:

                  (a)      the Memorandum;

                  (b) Annual Reports to the  Securities and Exchange  Commission
on Form 10-K of the  Company  for its fiscal  years  ended  October 26, 1997 and
October 29,  1996.  The Form 10-K for the fiscal year ended  October 26, 1997 is
hereinafter referred to as the "Form 10-K;"

                  (c)  Quarterly   Reports  to  the   Securities   and  Exchange
Commission  on Form 10-Q of the Company  for the  quarters  ended July  26,1998,
April  26,1998,  January 25, 1998.  The July 26, 1998 Form 10- Q is  hereinafter
referred to as the "Form 10-Q";

                  (d) The Company's  Current Reports on Form 8-K filed August 7,
1998 and April 30, 1998.

         Collectively,  the  Form  10-K,  the Form  10-Q  and the Form  8-Ks are
referred to herein as the "Public Reports."

3.       CONDITIONS TO SUBSCRIBER'S OBLIGATIONS.

         3.1.    The  obligation  of the  Subscriber  to close the  transactions
contemplated   by  this  Agreement  (the   "Transaction")   is  subject  to  the
satisfaction on or prior to the Initial Closing Date, or any Additional  Closing
Date, as applicable,  of the following  conditions set forth in Sections 3.2 and
3.3 hereof.

         3.2.    The representations and warranties made by Company herein shall
be true in all  material  respects on and as of the Initial  Closing Date or any
Additional Closing Date, as applicable, with the same effect as if they had been
made on and as of such date.

         3.3.    All proceedings to be taken in connection with the consummation
of the  Transaction  or  prior to the  Initial  Closing  Date or any  Additional
Closing Date, as applicable, have been taken, and all documents incident thereto
shall be reasonably satisfactory in form and substance to the Subscriber and its
counsel,  and the Subscriber  and its counsel shall have received  copies of all
documents and information  which it may have reasonably  requested in connection
with the Transaction and of all corporate  proceedings in connection  therewith,
in form and substance reasonably satisfactory to Subscriber and its counsel.

4.       REPRESENTATIONS AND WARRANTIES; COVENANTS; SURVIVAL.

         4.1.    The  Company  represents and warrants that, at the date of this
Agreement:



<PAGE>



                  (a)    The Company is a corporation duly organized and validly
existing and in good standing under the laws of the State of Delaware,  entitled
to own its  property  of a  material  nature and to carry on its  business  of a
material  nature as and in places  where such  property is now owned or operated
and such business is conducted;

                  (b)    Each   of  the   subsidiaries   of  the  Company  is  a
corporation  duly organized and validly  existing and in good standing under the
laws of the jurisdiction of their respective place of organization,  entitled to
own their  respective  properties  of a  material  nature  and to carry on their
respective  businesses of a material  nature in places where such properties are
now  owned or  operated  and such  businesses  are  conducted,  and,  except  as
disclosed in the Public Reports,  there is no action or proceeding pending or to
the Company's  best  knowledge  threatened,  brought by or before any federal or
state agency having jurisdiction over the operations of a material nature of the
Company which threatens in any material  respect the continued  operation of any
material   phase  of  the  Company's   business  now  conducted  by  it  or  its
subsidiaries;

                  (c)    The  Company  has  furnished  the  Subscriber  with its
certified consolidated financial statements as of October 26, 1997, contained in
the Form 10-K,  and such  financial  statements,  including the notes  contained
therein,  fairly present the consolidated  financial  position of the Company at
the date thereof and the results of its  consolidated  operations for the period
purported to be covered thereby. Such financial statements have been prepared in
conformity with generally accepted accounting  principles  consistently  applied
with prior periods subject to any comments and notes contained therein;

                  (d)    The  Company  by  appropriate  and  required  corporate
action, has duly authorized the execution of this Agreement and the issuance and
delivery of the Common  Stock.  Such  shares of Common  Stock are not subject to
preemptive  or other rights of any  stockholders  and, when issued in accordance
with the terms of this  Agreement,  the  shares of Common  Stock will be validly
issued, fully paid and nonassessable;

                  (e)    Performance  of this Agreement and compliance  with the
provisions hereof will not violate any provision of any applicable law or of the
Certificate  of  Incorporation  or  By-Laws  of  the  Company,  or of any of its
subsidiaries,  and will not conflict  with or result in any breach of any of the
terms,  conditions or provisions of, or constitute a default under, or result in
the creation or imposition of any lien,  charge or encumbrance  upon, any of the
properties  or assets of a  material  nature  of the  Company,  or of any of its
subsidiaries, pursuant to the terms of any indenture, mortgage, deed of trust or
other  agreement  of  instrument  binding  upon  the  Company,  or  any  of  its
subsidiaries.

5.       TRANSFER.

         5.1.    Subscriber  acknowledges  that it is acquiring the Common Stock
for its own account and for the purpose of investment and not with a view to any
distribution or resale thereof within the meaning of the Securities Act of 1933,
as amended  (the  "Act"),  and any  applicable  state or other  securities  laws
("State Acts").  The Subscriber  further agrees that it will not sell, assign or
transfer  any of the  Common  Stock in  violation  of the Act or State  Acts and
acknowledges that, in taking unregistered  securities,  it must continue to bear
the economic risk of its investment for an indefinite  period of time because of
the fact that such Common Stock has not been  registered  under the Act or State
Acts and further  realizes  that such Common  Stock  cannot be sold unless it is
subsequently  registered  under the Act and State Acts or an exemption from such
registration  is  available.  The  Subscriber  further  understands  that  it is
acquiring  Common Stock at a price below the price at which such Common Stock is
being traded on the American Stock Exchange at the time of this  Agreement,  and
therefore,  such Common Stock will contain a restriction on transferabiity for a
period of six months from the date of  purchase,  regardless  of any  subsequent
registration  under the Act. The Subscriber  further recognizes that the Company
is not assuming any obligation to register such Common Stock except as set forth
herein. The Subscriber also acknowledges that appropriate legends reflecting the
status of the  Common  Stock  under the Act and State  Acts may be placed on the
face of the certificates for such Common Stock at the time of their transfer and
delivery to the holder thereof.



                                        3


<PAGE>

         5.2.    The  Common Stock issued  pursuant to this Agreement may not be
transferred  except in a  transaction  which is in  compliance  with the Act and
State Acts.  Except as provided in Section  6.1, it shall be a condition  to any
such transfer  that the Issuer shall be furnished  with an opinion of counsel to
the holder of such Common Stock,  reasonably satisfactory to the Company, to the
effect that the proposed  transfer would be in compliance with the Act and State
Acts.

6.       PIGGYBACK REGISTRATION RIGHTS.

         6.1.    The   Subscriber  shall  be  entitled  to  certain  "piggyback"
registration rights under the Act with respect to the Shares, upon the terms and
subject to the conditions hereinafter set forth:



         (a)    If the Company shall  determine to register under the Act any of
its  Common  Stock  either  for  its  own  account  or for  the  account  of its
shareholders,  other than a  registration  relating  solely to employee  benefit
plans,  or a  registration  relating  to a  corporate  reorganization  or  other
transaction  under Rule 145 promulgated  under the Act, or a registration on any
registration form that does not permit secondary sales, the Company will:

            (i)     promptly give to the Subscriber written notice thereof; and

           (ii)     except as set forth in  Section 6.1 (b), below, use its best
efforts to include in such  registration  (and any related  qualification  under
State Acts or other compliance),  and in any underwriting involved therein, such
of the Shares being  delivered to the  Subscriber  pursuant to this Agreement as
are specified in a written  request made by the  Subscriber  and received by the
Company within ten (10) days after the written notice from the Company described
in clause (i) above is mailed or delivered by the Company.  Such written request
may specify all or a part of the Shares to be so included in such registration.

           (b)      If the registration of which the Company gives notice is for
a registered public offering  involving an underwriting,  then the Company shall
so advise the  Subscriber  as a part of the  written  notice  given  pursuant to
Section  6.1(a).  In such event,  the right of the  Subscriber  to  registration
pursuant to this  Section 6.1 shall be  conditioned  upon  participation  by the
Subscriber  in  such  underwriting  and  the  inclusion  of  the  Shares  in the
underwriting  to the extent  provided  therein.  All  Subscribers  proposing  to
distribute  their  shares  of  Common  Stock  through  such  underwriting  shall
(together  with the Company and the other  holders of  securities of the Company
with registration  rights to participate  therein  distributing  their shares of
Common Stock through such underwriting) enter into an underwriting  agreement in
customary  form  with the  representative  of the  underwriter  or  underwriters
selected by the Company.

           Notwithstanding  any other  provision  of this  Section  6.1,  if the
representative of the underwriters advises the Company in writing that marketing
factors  require a limitation  on the number of shares to be  underwritten,  the
representative  may  (subject to the  limitation  set forth  below)  exclude all
Shares from, or limit the number of Shares to be included,  in the  registration
and  underwriting.  The Company  shall so advise all holders of shares of Common
Stock  requesting  registration,  and the  number  of shares of shares of Common
Stock that are  entitled  to be included in the  registration  and  underwriting
shall be allocated first to the Company for shares being issued and sold for its
own account and then to such other holders  (including the  Subscriber) pro rata
based  upon  the  relative  number  of  shares  sought  to be  included  in such
registration  by such holders.  If any Subscriber does not agree to the terms of
any such  underwriting,  such Subscriber shall be excluded  therefrom by written
notice from the Company or the  underwriter.  Any Shares  excluded or  withdrawn
from such underwriting shall be withdrawn from such registration.

           (c)      Except  as provide above,  the Company shall not be required
to register any Shares under the Act.

                                        4

<PAGE>

7.    CLOSING.

         7.1.    The  closing  of  the  sale  of  Common  Stock  ("Closing")  to
Subscriber shall take place at the offices of the Company, on or before December
31, 1998 (the "Closing Date"),  at such time as the Company and Subscriber shall
mutually  agree.  The Company  may, in its sole  discretion,  extend the Closing
Date. Any payments tendered herewith in connection with  Subscriptions that have
not been accepted by the Closing Date, as extended,  shall  promptly be returned
to the Subscriber tendering such payments.

8.    SUBSCRIBER REPRESENTATIONS. The undersigned hereby represents and warrants
to and agrees with the Company as follows:

         8.1.    The  undersigned has been furnished with and has carefully read
the Form 10-K,  Form 10-Q and Form 8-Ks and is familiar with and understands the
terms of the  offering  described  herein  (the  "Offering").  With  respect  to
individual or partnership tax and other economic considerations involved in this
investment,  the  undersigned  is not  relying on the  Company  (or any agent or
representative  of the Company).  The undersigned  has carefully  considered and
has, to the extent the undersigned believes such discussion necessary, discussed
with  the  undersigned's  professional  legal,  tax,  accounting  and  financial
advisers,  the  suitability  of an  investment  in  the  Common  Stock  for  the
undersigned's particular tax and financial situation and has determined that the
Common Stock being  subscribed for by the  undersigned is a suitable  investment
for the undersigned.

         8.2.    The  undersigned  acknowledges that all documents,  records and
books  pertaining to this  investment  which the  undersigned has requested have
been made  available for  inspection by the  undersigned  and the  undersigned's
attorney, accountant and other adviser(s).

         8.3.    The  undersigned and/or the undersigned's  advisor(s)  has/have
had a reasonable  opportunity  to ask  questions  of and receive  answers from a
person or persons  acting on behalf of the Company  concerning  the Offering and
all  such  questions  have  been  answered  to  the  full  satisfaction  of  the
undersigned.

         8.4.    The  undersigned  is  not  aware  of any  material  information
regarding the Company,  any of its subsidiaries,  or their respective  business,
prospects,  financial  condition  or  results of  operations  which has not been
disseminated generally to the public.

         8.5.    The  undersigned is not  subscribing for shares of Common Stock
as a result of or  subsequent  to any  advertisement,  article,  notice or other
communication published in any newspaper, magazine or similar media or broadcast
over television or radio or presented at any seminar or meeting.

         8.6.    The undersigned is an "accredited investor," within the meaning
of Rule 501(a) of Regulation D under the Act. The undersigned,  by reason of the
undersigned's  business or  financial  experience  or the  business or financial
experience of the undersigned's  professional advisers who are unaffiliated with
and who  are not  being  compensated  by the  Company  or any  affiliate  of the
Company, directly or indirectly,  can be reasonably assumed to have the capacity
to protect its  interests  in  connection  with an  investment  in the shares of
Common Stock.

         8.7.    If the  undersigned is a natural  person,  the  undersigned has
adequate means of providing for the  undersigned's  current  financial needs and
contingencies,  is able to bear the substantial  economic risks of an investment
in the shares of Common Stock for an indefinite  period of time, has no need for
liquidity in such investment  and, at the present time,  could afford a complete
loss of such investment.

         8.8.    The undersigned or the undersigned's purchaser  representative,
as the case may be, has such  knowledge and  experience  in  financial,  tax and
business matters so as to enable the undersigned to utilize the information made
available to the  undersigned  in  connection  with the Offering to evaluate the
merits and risks of an  investment  in the Common  Stock and to make an informed
investment decision with respect
                                        5

<PAGE>

thereto.

         8.9.    The undersigned  acknowledges the Shares of Common Stock herein
submitted  for have not been  registered  under the Act or under any State Acts.
The  undersigned  will not sell,  transfer  or  otherwise  dispose of the Shares
unless  they are  registered  under  the Act and any  applicable  State  Acts or
pursuant to  available  exemptions  from such  registration;  provided  that the
undersigned  shall be  required  to deliver to the Company an opinion of counsel
satisfactory to the Company  confirming the availability of such exemption.  The
undersigned  represents  that the undersigned is purchasing the Common Stock for
the undersigned's  own account,  for investment and not with a view to resale or
distribution except in compliance with the Act and the restrictions contained in
the immediately preceding sentence.  The undersigned has not offered or sold any
portion of the Shares of Common Stock being  acquired  nor does the  undersigned
have any present  intention of selling,  distributing or otherwise  disposing of
the shares of Common Stock  either  currently or after the passage of a fixed or
determinable  period  of time or upon the  occurrence  or  nonoccurrence  of any
predetermined event or circumstance in violation of the Act or any State Acts.

         8.10.   The  undersigned  recognizes  that  investment  in  the  Shares
involves  substantial  risks,  including  loss  of the  entire  amount  of  such
investment.  Further,  the  undersigned  has carefully  read and  considered the
matters  set forth in the  Memorandum,  and has  taken  full  cognizance  of and
understands all of the risks related to a purchase of the Shares.

         8.11.   The undersigned acknowledges that each certificate representing
the Shares shall be stamped or otherwise  imprinted with a legend  substantially
in the following form:

                  THESE SHARES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT
                  OF 1933  (THE  "SECURITIES  ACT")  OR UNDER  APPLICABLE  STATE
                  SECURITIES LAWS AND MAY NOT BE SOLD,  TRANSFERRED OR OTHERWISE
                  DISPOSED OF UNLESS REGISTERED UNDER THE SECURITIES ACT AND ANY
                  APPLICABLE  STATE  SECURITIES  LAWS OR PURSUANT  TO  AVAILABLE
                  EXEMPTIONS  FROM SUCH  REGISTRATION,  PROVIDED THAT THE SELLER
                  DELIVERS TO THE COMPANY AN OPINION OF COUNSEL  SATISFACTORY TO
                  THE COMPANY  CONFIRMING THE  AVAILABILITY  OF SUCH  EXEMPTION.
                  INVESTORS  SHOULD BE AWARE THAT THEY MAY BE  REQUIRED  TO BEAR
                  THE  FINANCIAL  RISKS  OF THIS  INVESTMENT  FOR AN  INDEFINITE
                  PERIOD OF TIME.

         The undersigned  acknowledges  and agrees that it shall not be entitled
to seek any remedies  with respect to the Offering from any party other than the
Company.

         8.13.   If  this  Subscription  Agreement is executed and  delivered on
behalf of a partnership,  corporation,  trust or estate:  (i) such  partnership,
corporation,  trust or  estate  has the  full  legal  right  and  power  and all
authority  and  approval  required  (a) to execute  and  deliver,  or  authorize
execution and delivery of, this Subscription Agreement and all other instruments
executed and delivered by or on behalf of such partnership,  corporation,  trust
or estate  in  connection  with the  purchase  of the  Shares,  (b) to  delegate
authority  pursuant  to a power of attorney  and (c) to  purchase  and hold such
Shares;  (ii) the signature of the party signing on behalf of such  partnership,
corporation,  trust or estate is  binding  upon such  partnership,  corporation,
trust or estate;  and (iii) such partnership,  corporation or trust has not been
formed for the specific purpose of acquiring the Shares,  unless each beneficial
owner of such entity is qualified as an "accredited investor" within the meaning
of Rule  501(a)  of  Regulation  D under the Act and has  submitted  information
substantiating such individual qualification.

         8.14.   If  the  undersigned  is a  retirement  plan or is investing on
behalf of a retirement plan, the undersigned acknowledges that investment in the
Shares  poses  risks in  addition to those  associated  with other  investments,
including the inability to use losses generated by an investment

                                        6

<PAGE>

in the Shares to offset taxable income.

         8.15.   The  undersigned  shall indemnify and hold harmless the Company
and each of its subsidiaries and each officer, director or control person of any
such entity,  who is or may be a party or is or may be  threatened  to be made a
party to any  threatened,  pending  or  completed  action,  suit or  proceeding,
whether  civil,  criminal,  administrative  or  investigative,  by  reason of or
arising from any actual or alleged  misrepresentations  or misstatement of facts
or omission to represent or state facts made or alleged to have been made by the
undersigned  to the Company (or any agent or  representative  of the Company) or
omitted or  alleged to have been  omitted  by the  undersigned,  concerning  the
undersigned or the  undersigned's  authority to invest or financial  position in
connection  with  the  Offering,   including,   without  limitation,   any  such
misrepresentation,  misstatement or omission contained in any document submitted
by the undersigned in connection with the Offering,  against losses, liabilities
and  expenses  actually and  reasonably  incurred by the Company or any officer,
director or control person of the Company in connection  with such action,  suit
or proceeding for which the Company or such officer,  director or control person
has not otherwise been reimbursed (including  attorneys' fees, judgments,  fines
and amounts paid in settlement).

9.       UNDERSTANDINGS

         The undersigned  understands,  acknowledges and agrees with the Company
as follows:

         9.1.    This  Subscription may be rejected, in whole or in part, by the
Company,  in its sole and  absolute  discretion,  at any time  before an Initial
Closing Date or any Additional Closing Date, as the case may be, notwithstanding
prior receipt by the  undersigned  of notice of acceptance of the  undersigned's
Subscription.

         9.2.    Except  as set forth in paragraph  8.1 above,  the  undersigned
hereby acknowledges and agrees that the Subscription hereunder is irrevocable by
the  undersigned,  that,  except as  required  by law,  the  undersigned  is not
entitled to cancel,  terminate  or revoke  this  Subscription  Agreement  or any
agreements of the undersigned hereunder and that this Subscription Agreement and
such other  agreements  shall survive the death or disability of the undersigned
and shall be  binding  upon and inure to the  benefit of the  parties  and their
heirs,  executors,   administrators,   successors,   legal  representatives  and
permitted  assigns.  If the undersigned is more than one person, the obligations
of the  undersigned  hereunder  shall be joint and several  and the  agreements,
representations, warranties and acknowledgments herein contained shall be deemed
to be made by and be binding upon each such person and his/her heirs, executors,
administrators, successors, legal representatives and permitted assigns.

         9.3.    No   Federal  or  state   agency  has  made  any   findings  or
determination  as to the  accuracy or adequacy  of the  Memorandum  or as to the
fairness of the terms of this Offering for investment nor any recommendations or
endorsement of the Shares of Common Stock.

         9.4.    The  Offering is intended to be exempt from registration  under
the  Securities  Act by virtue of Section 4(2) of the Act and the  provisions of
Regulation D thereunder, which is in part dependent upon the truth, completeness
and accuracy of the statements made by the undersigned herein.

         9.5.    There  can be no assurance that the undersigned will be able to
sell or dispose  of all or a portion of the  Shares.  It is  understood  that in
order not to jeopardize the  Offering's  exempt status under Section 4(2) of the
Securities Act and Regulation D, any transferee  may, at a minimum,  be required
to fulfill the investor suitability requirements thereunder.

         9.6.    The   representations,   warranties   and   agreements  of  the
undersigned contained herein

                                        7

<PAGE>

and  in  any  other  writing  delivered  in  connection  with  the  transactions
contemplated  hereby  shall be true and correct in all respects on and as of the
date of the  sale of the  Shares  as if made on and as of such  date  and  shall
survive the  execution  and  delivery  of this  Subscription  Agreement  and the
purchase of the Shares.

         9.7.    IN MAKING AN INVESTMENT DECISION, PURCHASERS MUST RELY ON THEIR
OWN  EXAMINATION  OF THE COMPANY AND THE TERMS OF THE  OFFERING,  INCLUDING  THE
MERITS AND RISKS INVOLVED.  THE SHARES HAVE NOT BEEN  RECOMMENDED BY ANY FEDERAL
OR  STATE  SECURITIES  COMMISSION  ON  REGULATORY  AUTHORITY.  FURTHERMORE,  THE
FOREGOING AUTHORITIES HAVE NOT CONFIRMED THE ACCURACY OR DETERMINED THE ADEQUACY
OF THE  MEMORANDUM OR THIS  DOCUMENT.  ANY  REPRESENTATION  TO THE CONTRARY IS A
CRIMINAL OFFENSE.

         9.8.    The  Offering  and sale of the Shares is  intended to be exempt
from registration  under the securities laws of certain U.S. states. A purchaser
residing in one or more of the  following  states  shall note the  language  set
forth  below,  which  is  required  to be  included  in  this  Agreement  by the
securities  laws of those  states.  The  Purchaser  must  note  that  there  are
restrictions on transfer of all Shares.

ALL STATES:  THE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OR
THE  SECURITIES  LAWS OF ANY STATE AND ARE BEING OFFERED AND SOLD IN RELIANCE ON
EXEMPTIONS  FROM THE  REGISTRATION  REQUIREMENTS  OF THE SECURITIES ACT AND SUCH
LAWS. THE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE  COMMISSION,  ANY  STATE  SECURITIES  COMMISSION  OR  OTHER  REGULATORY
AUTHORITY, NOR HAVE ANY OF THE FOREGOING AUTHORITIES PASSED UPON OR ENDORSED THE
MERITS OF THIS  OFFERING OR THE  ACCURACY OR  ADEQUACY  OF THE  MEMORANDUM.  ANY
REPRESENTATION TO THE CONTRARY IS UNLAWFUL.

THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON  TRANSFERABILITY  AND RESALE AND
MAY NOT BE TRANSFERRED OR RESOLD EXCEPT AS PERMITTED  UNDER THE SECURITIES  ACT,
AND APPLICABLE  STATE  SECURITIES  LAWS,  PURSUANT TO  REGISTRATION OR EXEMPTION
THEREFROM.  INVESTORS  SHOULD  BE AWARE  THAT THEY MAY BE  REQUIRED  TO BEAR THE
FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE PERIOD OF TIME.

FOR NEW YORK RESIDENTS ONLY:

THE  MEMORANDUM  HAS NOT BEEN FILED WITH OR REVIEWED BY THE ATTORNEY  GENERAL OF
THE STATE OF NEW YORK PRIOR TO ITS ISSUANCE AND USE. THE ATTORNEY GENERAL OF THE
STATE OF NEW YORK HAS NOT PASSED ON OR ENDORSED THE MERITS OF THIS OFFERING. ANY
REPRESENTATION TO THE CONTRARY IS UNLAWFUL.

THE MEMORANDUM  DOES NOT CONTAIN AN UNTRUE  STATEMENT OF A MATERIAL FACT OR OMIT
TO STATE A MATERIAL FACT NECESSARY TO MAKE THE STATEMENTS  MADE, IN LIGHT OF THE
CIRCUMSTANCES  UNDER  WHICH THEY ARE MADE,  NOT  MISLEADING.  IT CONTAINS A FAIR
SUMMARY OF THE MATERIAL TERMS OF DOCUMENTS PURPORTED TO BE SUMMARIZED HEREIN.

MISCELLANEOUS.

         10.1.    Except  as set forth elsewhere herein, any notice or demand to
be given or served



                                        8


<PAGE>

in connection  herewith shall be deemed to be  sufficiently  given or served for
all purposes by being sent as  registered  or  certified  mail,  return  receipt
requested,  postage prepaid, in the case of the Company,  addressed to it at the
address  set forth  above;  and in the case of  Subscriber  to the  address  for
correspondence set forth in the Company's books and records.


         10.2.    This  Subscription  Agreement shall be enforced,  governed and
construed  in  all  respects  in  accordance  with  the  laws  of the  State  of
California,  as such laws are applied by California courts to agreements entered
into and to be performed in California by and between  residents of  California,
and shall be binding upon the  undersigned,  the  undersigned's  heirs,  estate,
legal representatives,  successors and assigns and shall inure to the benefit of
the Company, the Placement Agents, and their respective  successors and assigns.
If any  provision of this  Subscription  Agreement  is invalid or  unenforceable
under any applicable statute or rule of law, then such provision shall be deemed
inoperative to the extent that it may conflict  therewith and shall be deemed to
be modified to conform with such statute or rule of law.  Any  provision  hereof
that may prove  invalid  or  unenforceable  under any law shall not  affect  the
validity or enforceability of any other provision hereof.

         10.3.    This  Agreement shall be binding upon and inure to the benefit
of the Company, and Subscriber and their respective successors and assigns.

         10.4.    In any action,  proceeding or counterclaim  brought to enforce
any of the provisions without of this Agreement or to recover damages, costs and
expenses in connection  with any breach of the Agreement,  the prevailing  party
shall  be  entitled  to be  reimbursed  by the  opposing  party  for  all of the
prevailing  party's  attorneys'  fees,  costs and other  out-of-pocket  expenses
incurred in connection with such action, proceeding or counterclaim.

11.      SIGNATURE. The signature of this Subscription Agreement is contained as
part of the applicable Subscription Package, entitled "Signature Page."




                                        9



<PAGE>

                   SUBSCRIPTION AGREEMENT GENERAL INSTRUCTIONS

GENERAL INSTRUCTIONS

         These  Subscription   Documents  contain  all  documents  necessary  to
subscribe  for  Shares  ("Shares")  of Common  Stock,  par value  $.01 per Share
("Common  Stock")  of  Datametrics  Corporation,  a  Delaware  corporation  (the
"Company").

         You may subscribe for Shares by completing the  Subscription  Agreement
in the following manner:

         1.       On line(a) state the number of Shares you wish to purchase.

         2.       On  line (b) state the total  cost of the  Shares  you wish to
purchase.  To obtain  the cost,  multiply  the  number of Shares  you  desire to
purchase by the purchase price per Share set forth.

         3.       Please    complete   the   detailed   investment   and   other
representations  in the Subscription  Agreement to evidence your suitability for
an  investment  in the  Company.  All  Purchasers  must  complete  and  sign the
Subscription Agreement.

         4.       Sign  and state  your  address,  telephone  number  and social
security or other  taxpayer  identification  number on the lines provided on the
signature page to the Subscription  Agreement,  have your signature acknowledged
by a notary  public and  deliver the  completed  Subscription  Agreement  to the
Company with payment of the entire purchase price of the Shares  subscribed for.
Payment should be made in United States Dollars, in cash or by check, bank draft
or postal or express money order payable to "Datametrics Corporation" or by wire
transfer  to an  account  to be  designated  by the  Company.  The  Subscription
Agreement  Signature  Page must be completed and signed by each investor and all
signatures  must be  acknowledged  by a notary  public.  Send all  documents and
payments to :

                           Datametrics Corporation
                           25B Hanover Road, No. 3305
                           Florham Park, NJ 07932
                           Attn:    Daniel P. Ginns
                                    Chairman of the Board

         THE COMPLETED SUBSCRIPTION AGREEMENT SHOULD BE RETURNED IN ITS ENTIRETY
TO THE PLACEMENT AGENT DESIGNATED ABOVE.

ACCEPTANCE OF DELIVERY

         All questions as to the validity,  form, eligibility (including time of
receipt)  and  acceptance  of  the  completed  Subscription  Agreement  will  be
determined by the Company,  which  determination will be final and binding.  The
Company  reserves  the  absolute  right to  reject  any  completed  Subscription
Agreement,  in its sole and absolute  discretion.  The Company also reserves the
right to waive any  irregularities  in, or  conditions  of,  the  submission  of
completed Subscription Agreements, and the Company's interpretation of the terms
and conditions for the purchase of Shares (including these  instructions)  shall
be  final  and  binding.  The  Company  shall  be  under  no duty  to  give  any
notification of irregularities in connection with any attempted subscription for
Shares or incur any liability for failure to give such notification.  Until such
irregularities have been cured


<PAGE>




or waived,  no  subscription  for Shares shall be deemed to have been made.  Any
Subscription  Agreement  that is not properly  completed and as to which defects
have not been cured or waived will be returned by the Company to the  subscriber
as soon as practicable.  Unless an aggregate of 1,559,374  Shares are subscribed
for and purchased,  no Shares will be sold and all subscriptions for Shares will
be returned, without interest or deduction.





<PAGE>

                      SUBSCRIPTION AGREEMENT SIGNATURE PAGE
                       PLEASE PRINT OR TYPE, USE INK ONLY.
                             (ALL PARTIES MUST SIGN)


         The undersigned  investor hereby certifies that he (i) has received and
relied  solely  upon the  Offering  Documents,  (ii) agrees to all the terms and
conditions of this Subscription  Agreement (iii) meets the suitability standards
set forth in this Subscription  Agreement and (iv) is a resident of the state or
foreign jurisdiction indicated below.

<TABLE>

(A)       THE UNDERSIGNED IRREVOCABLY SUBSCRIBES FOR_________________SHARES OF COMMON STOCK.
  
(B)       THE TOTAL COST OF THE SHARES SUBSCRIBED FOR, AT $1.00 PER SHARE, IS $____________.

<S>                                                   <C>   
                                                       If other than individual check one and indicate
Name of Subscriber (Print)                             capacity of signatory under the signature:
                                                             Trust
                                                             Estate
Name of Joint Subscriber (if any) (Print)                    Uniform Gifts to Minors Act of State of ___
                                                             Attorney-in-fact
                                                             Corporation
Signature of Subscriber                                      Other

                                                       If Joint Ownership, check one:
Signature of Joint Subscriber (if any)
                                                             Joint Tenants with Right of Survivorship
                                                             Tenants in Common
Capacity of Signatory (if applicable)                        Tenants by the Entirety
                                                             Community by Property

Social Security or Taxpayer identification             Backup Withholding Statement:
Number                                                       Please check this box only if the investor is
                                                             subject to backup withholding

Residence Address                                      Foreign Person:
                                                             Please check this box only if the investor is a
                                                             nonresident alien, foreign corporation,
City            State            Zip Code              foreign partnership, foreign trust or foreign
                                                       estate.

                                                       Telephone (   )
</TABLE>


The investor agrees to the terms of this Subscription Agreement and, as required
by the  Regulations  pursuant to the  Internal  Revenue  Code,  certifies  under
penalty  of  perjury   that  (1)  the  Social   Security   Number  or   Taxpayer
Identification Number and address provided above is correct, (2) the investor is
not subject to backup withholding  (unless the Backup Withholding  Statement box
is checked) either because he has not been notified that he is subject to backup
withholding  as a result of a failure to report all  interest  or  dividends  or
because  the  Internal  Revenue  Service has  notified  him that he is no longer
subject to backup  withholding  and (3) the investor  (unless the Foreign Person
box above is checked) is not a nonresident alien, foreign  partnership,  foreign
trust or foreign estate.

<PAGE>








         THE SUBSCRIPTION FOR_____SHARES OF DATAMETRICS CORPORATION BY THE ABOVE
NAMED SUBSCRIBER(S) IS ACCEPTED THIS_____DAY OF DECEMBER, 1998.

                                            DATAMETRICS CORPORATION


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








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