EAST SOLENT CORPORATE BUSINESS CENTRE   3rd & 4th Floors  Telephone:01705 665060
Portsmouth Corporate Office             Society Building  Facsimile:01705 666858
                                        176 London Road
                                        North End
                                        PORTSMOUTH
                Your ref:               Hants
                Our ref. CCM MR  Tue    P029DR

                STRICTLY PRIVATE & CONFIDENTIAL
                C Wall Esq
                Managing Director
                Vicon Industries (UK) Limited
                Brunel Way
                Fareham                                             NATWEST
                Hants P015 5TX


  8 April 1997


  Dear Mr Wall

  CUSTOMER FIXED RATE LOAN AGREEMENT DATED 24 MARCH 1997

  We refer to the Commercial Fixed Rate Loan Agreement dated 24 March 1997 which
  we have entered into with you (the "Agreement").

  Words which are defined in the  Agreement  have the same  meaning when used in
  this Letter.

  Subject to the terms of the Agreement, you are entitled to ask us to provide a
  Quotation to you in connection with the Agreement.

  In  consideration of you paying to us a fee of 275 pounds sterling (P/S) on or
  before 14 April 1997, we hereby agree that:

      the fixed rate of interest specified in the Quotation for the whole period
      of the Loan  shall not be greater  than 9 per cent per year (the  "Maximum
      Agreed Rate")


  You may only  accept  our offer if you are able to  satisfy  all the terms and
  conditions  contained within this letter and you can, of course, only draw the
  Loan if you satisfy all the terms and conditions in the Agreement.

  The Maximum  Agreed Rate is only  available  for the lesser of:

    the period of 7 days from the date of this letter; and

    the period within which you must draw the Loan under the Agreement.

  Our offer  contained  in this  letter  relates  solely to the rate of interest
  specified in our  Quotation  which may be made by us pursuant to the Agreement
  and not to any other offer of facilities by us to you.





The fee of 275 pounds  sterling (P/S) payable to us by you pursuant to paragraph
4 of this  letter is in  addition to any fees which are payable to you under the
Agreement  and is not  refundable by us to you in the event that you do not draw
the Loan.

Acceptance  of our offer to You may only be effected by the receipt by us of the
fee specified in paragraph 4 of this letter  together  with the following  items
which must, in form and substance, be satisfactory us.


    a signed copy of this letter signed for and on your behalf

    a certified copy of a resolution of your board of directors authorising
    acceptance of our offer

    a certified copy of your memorandum and articles of association

This letter is governed by the laws of England.

Yours sincerely



TIM BLEATHMAN
Corporate Manager
For and on behalf of
National Westminster Bank PLC













Form of Charge Filed at HM Land Registry Under Reference MD436N     ID: C041410
NWB1115  (Revised May 1995) Legal Mortgage of land by  individual(s)  or company
(with provision for commercial use)

This Legal Mortgage is dated                               9th April 1997

and is made between


Vicon Industries (UK) Limited (Reg No 1551194) whose  Registered  Office is
situate at Site P3 Brunel Way Segensworth  Industrial  Estate  Segensworth  East
Fareham Hampshire







(the Mortgagor) of the one part and National  Westminster Bank Pic (the Bank) of
the other part whose address for service of any documents relating to this Legal
Mortgage is its Branch at

Solent Securities Centre 3rd Floor Arndale House 243 High Street North Poole 
Dorset BH15 1BD


or such other  address as the Bank may notify the  Mortgagor  of in writing from
time to time.

Description of the leasehold property to be mortgaged Address:

             Site P3 Brunel Way Segensworth Industrial Estate Segensworth East
             Fareham Hampshire



          Registered land

           Title number(s)    County/London Borough

           HP401658           Hampshire / Fareham


          Unregistered land
          The property is comprised               in the following documents:

            Date           Description (Conveyance  Parties
                           Lease Assignment Assent etc)













                                                         ID : C041410

1 If the expression  "the  Mortgagor"  includes more than one person it shall be
construed as referring to all and/or any one or more of those  persons and their
obligations shall be joint and several.

2 (a) The Mortgagor with full title  guarantee  charges by way of legal mortgage
all and  every  interest  in or over the  property  described  above  which  the
Mortgagor  now or  hereafter  has power so to charge  and  charges in equity all
other interests therein (the Mortgaged  Property) and the proceeds of We thereof
and charges to the Bank all moneys to be received  under any policy of insurance
effected in respect of the  Mortgaged  Property as a continuing  security to the
Bank for the discharge on demand of:-

       (i)   all present and/or future indebtedness of the Mortgagor to the Bank
             on any current  and/or other account vath interest and bank charges
             and

       (ii)  all  other  liabilities  whatsoever  of the  Mortgagor  to the Bank
             present future actual and/or contingent and

       (iii) all costs  charges and expenses  howsoever  incurred by the Bank in
             relation to .this Mortgage and such indebtedness and/or liabilities
             on a full indemnity basis

and for the payment of interest on the  foregoing  day by day from demand  until
full discharge (as well after as before  judgment) at the rate payable or deemed
to be payable by the Mortgagor.  Such interest will be calculated and compounded
as agreed or in such manner as the Bank may  reasonably  determine  from time to
time.

The costs and expenses referred to herein shall include (for avoidance of doubt)
all  amounts  the Bank may from time to time  require to  compensate  it for its
internal management and administrative costs and expenses incurred in connection
with the enforcement of this Mortgage and recovery of the liabilities secured by
it. In the absence of manifest  error a certificate  signed by an officer of the
Bank as to the amount of such costs and expenses  incurred by the Bank from time
to time shall for all purposes be conclusive  evidence (and  admissible as such)
against and binding upon the Mortgagor.

  (b) If the Mortgagor is a company the Mortgagor with full title guarantee also
charges by way of floating  security  all  movable  plant  machinery  implements
utensils  furniture and equipment  building and other  materials goods and other
effects  now and from time to time  placed on or used in or about the  Mortgaged
Property (the Charged  Effects) with the discharge on demand of all moneys costs
and interest as aforesaid and the expression  "the Mortgaged  Property" shall be
construed accordingly.

  (c) The Mortgagor with full title  guarantee  hereby assigns unto the Bank all
that the goodwill and connection of any business or businesses from time to time
carried on in or upon the  Mortgaged  Property or any part or parts  thereof and
the full  benefit of all  licences  (which  expression  shall also  include  any
registrations)  held in connection with such business(es)  subject to redemption
on payment of all  liabilities  hereby secured and the expression "the Mortgaged
Property"  shall be  construed  accordingly.  The  Mortgagor  will  take out and
maintain all necessary licences for the due carrying on of such business(es) and
will not do or  suffer  to be done any act  matter  or  thing  whereby  any such
licences may be lost or not renewed and will (to the fullest extent possible) at
all times at the Mortgagor's  cost execute all such  instruments and do all such
things  as shall be  requisite  for  transferring  and  vesting  all or any such
licences to and in the nominee(s) of the Bank or any other person(s) as the Bank
may direct and the of the Mortgagor  hereby  irrevocably  and by way of security
appoints  the  Bank  to be the  attorney  of the  Mortgagor  in the  name of the
Mortgagor  to apply for and obtain the renewal of any such  licences and to sign
all  proper  notices  and  other  documents  and to do all  necessary  acts  for
assigning or transferring all or any such licences to such person(s) as the Bank
may think fit.  Without  prejudice  to the above the  Mortgagor  consents to the
making of any protection order in respect of the Mortgaged  Property or any part
or parts thereof to such person or persons as the Bank or any Receiver appointed
hereunder  may specify  and/or the transfer of any such licence as aforesaid and
agrees that this Mortgage may be produced (and shall be  admissible) as evidence
of such consent.

3 The Mortgagor  will keep the Mortgaged  Property in a good state of repair and
condition  and will keep it insured  against such risks and with such office and
for such  amounts as the Bank may from time to time  approve.  If the  Mortgagor
fails to maintain  or insure the  Mortgaged  Property  the Bank may do so at the
expense of the Mortgagor without thereby becoming a mortgagee in possession.

4 Section 103 of the Law of Property  Act 1925 shall not apply to this  Mortgage
and the  statutory  power of sale and other powers shall be  exercisable  at any
time after demand.

5 If the Mortgagor is not a company (or to the extent that the charge  expressed
to be created by Clause 2(b) is ineffective) and in the event of the Bank taking
possession  of the Mortgaged  Property then without  prejudice to Clause 7 below
the Bank is hereby authorised as agent for the Mortgagor to remove store sell or
otherwise deal with any furniture or goods  whatsoever which the Mortgagor shall
fail or refuse to remove from the Mortgaged  Property within seven days of being
requested  so to do by notice from the Bank and the Bank shall not be liable for
any loss or damage  occasioned to the Mortgagor.  The Mortgagor  shall indemnify
the Bank against all expenses incurred by the Bank in relation to such furniture
or goods and the Bank shall  account to the  Mortgagor  for the  proceeds of any
such sale after deducting any such expenses.

6 The statutory powers of leasing or of accepting surrenders of leases conferred
on  mortgagors  shall not be exercised by the  Mortgagor nor shall the Mortgagor
pan with  possession  of the  Mortgaged  Property or any part thereof nor confer
upon any person firm company or body whatsoever any licence right or interest to
occupy the Mortgaged Property or any part thereof without the consent in writing
of the Bank  but the Bank may  grant or  accept  surrenders  of  leases  without
restriction.



7(a) At any time after the power of sale has become  exercisable the Bank may by
writing  under the hand of any Manager of the Bank appoint any person or persons
to be  receiver(s)  of the  Mortgaged  Property or any part or parts  thereof (a
Receiver).  The Bank  and/or  any  Receiver  appointed  hereunder  may  (without
prejudice  to  any  other  powers  howsoever   conferred)  enter  the  Mortgaged
Property.,  or any  part(s)  thereof  (whether  or not  any  income  is  arising
therefrom)  and  shall  (severally)  have  full  power (i) to do any act or deed
whatsoever  (in the case of the Bank and any  Receiver for and in the name of or
on behalf of the  Mortgagor or in the case of the Bank as Mortgagee) in relation
to or in  connection  therewith  which the  Mortgagor  was (or might  have been)
capable  of doing  and  irrespective  of the  Mortgagor's  death  insolvency  or
incapacity and treating the Mortgagor  conclusively as sole legal and beneficial
owner  (including  (without  limitation)  power to manage build complete  layout
repair  cleanse  develop use deal with apply for  registration  permissions  and
licences  equip  furnish  get-in  receive and collect  moneys  arising sell give
effective  receipts  exchange  lease  licence  sub-lease  surrender  and  accept
surrender of leases convey assign transfer  covenant  exercise  statutory rights
insure  litigate  contract  compromise  employ  agents and  servants and provide
services)  and (ii) to conduct any business  carried on or in the opinion of the
Bank or any  Receiver  capable  of being  carried  on in or from  the  Mortgaged
Property and shall in connection  therewith  have all of the powers  referred to
above.  Any expenditure  incurred in so doing shall be immediately  repayable by
the  Mortgagor  with  interest  at the rate  aforesaid  and shall be a liability
charged on the Mortgaged Property in priority to all other sums secured thereon.
The Bank and any Receiver may utilise any moneys from time to time  received for
the  purpose of  financing  any  expenditure  or costs at any time  incurred  in
connection  with the  exercise of any powers  hereby or  otherwise  conferred in
advance of any other  payments or  application  (whether under Section 109(8) of
the Law of Property Act 1925 of otherwise), Any Receiver may

                                                             D




















































                                                         ID : C041410

1 If the expression  "the  Mortgagor"  includes more than one person it shall be
construed as referring to all and/or any one or more of those  persons and their
obligations shall be joint and several.

2 (a) The Mortgagor with full title  guarantee  charges by way of legal mortgage
all and  every  interest  in or over the  property  described  above  which  the
Mortgagor  now or  hereafter  has power so to charge  and  charges in equity all
other interests therein (the Mortgaged  Property) and the proceeds of We thereof
and charges to the Bank all moneys to be received  under any policy of insurance
effected in respect of the  Mortgaged  Property as a continuing  security to the
Bank for the discharge on demand of:-

       (i)   all present and/or future indebtedness of the Mortgagor to the Bank
             on any current  and/or other account vath interest and bank charges
             and

       (ii)  all  other  liabilities  whatsoever  of the  Mortgagor  to the Bank
             present future actual and/or contingent and

       (iii) all costs  charges and expenses  howsoever  incurred by the Bank in
             relation to .this Mortgage and such indebtedness and/or liabilities
             on a full indemnity basis

and for the payment of interest on the  foregoing  day by day from demand  until
full discharge (as well after as before  judgment) at the rate payable or deemed
to be payable by the Mortgagor.  Such interest will be calculated and compounded
as agreed or in such manner as the Bank may  reasonably  determine  from time to
time.

The costs and expenses referred to herein shall include (for avoidance of doubt)
all  amounts  the Bank may from time to time  require to  compensate  it for its
internal management and administrative costs and expenses incurred in connection
with the enforcement of this Mortgage and recovery of the liabilities secured by
it. In the absence of manifest  error a certificate  signed by an officer of the
Bank as to the amount of such costs and expenses  incurred by the Bank from time
to time shall for all purposes be conclusive  evidence (and  admissible as such)
against and binding upon the Mortgagor.

  (b) If the Mortgagor is a company the Mortgagor with full title guarantee also
charges by way of floating  security  all  movable  plant  machinery  implements
utensils  furniture and equipment  building and other  materials goods and other
effects  now and from time to time  placed on or used in or about the  Mortgaged
Property (the Charged  Effects) with the discharge on demand of all moneys costs
and interest as aforesaid and the expression  "the Mortgaged  Property" shall be
construed accordingly.

  (c) The Mortgagor with full title  guarantee  hereby assigns unto the Bank all
that the goodwill and connection of any business or businesses from time to time
carried on in or upon the  Mortgaged  Property or any part or parts  thereof and
the full  benefit of all  licences  (which  expression  shall also  include  any
registrations)  held in connection with such business(es)  subject to redemption
on payment of all  liabilities  hereby secured and the expression "the Mortgaged
Property"  shall be  construed  accordingly.  The  Mortgagor  will  take out and
maintain all necessary licences for the due carrying on of such business(es) and
will not do or  suffer  to be done any act  matter  or  thing  whereby  any such
licences may be lost or not renewed and will (to the fullest extent possible) at
all times at the Mortgagor's  cost execute all such  instruments and do all such
things  as shall be  requisite  for  transferring  and  vesting  all or any such
licences to and in the nominee(s) of the Bank or any other person(s) as the Bank
may direct and the of the Mortgagor  hereby  irrevocably  and by way of security
appoints  the  Bank  to be the  attorney  of the  Mortgagor  in the  name of the
Mortgagor  to apply for and obtain the renewal of any such  licences and to sign
all  proper  notices  and  other  documents  and to do all  necessary  acts  for
assigning or transferring all or any such licences to such person(s) as the Bank
may think fit.  Without  prejudice  to the above the  Mortgagor  consents to the
making of any protection order in respect of the Mortgaged  Property or any part
or parts thereof to such person or persons as the Bank or any Receiver appointed
hereunder  may specify  and/or the transfer of any such licence as aforesaid and
agrees that this Mortgage may be produced (and shall be  admissible) as evidence
of such consent.

3 The Mortgagor  will keep the Mortgaged  Property in a good state of repair and
condition  and will keep it insured  against such risks and with such office and
for such  amounts as the Bank may from time to time  approve.  If the  Mortgagor
fails to maintain  or insure the  Mortgaged  Property  the Bank may do so at the
expense of the Mortgagor without thereby becoming a mortgagee in possession.

4 Section 103 of the Law of Property  Act 1925 shall not apply to this  Mortgage
and the  statutory  power of sale and other powers shall be  exercisable  at any
time after demand.

5 If the Mortgagor is not a company (or to the extent that the charge  expressed
to be created by Clause 2(b) is ineffective) and in the event of the Bank taking
possession  of the Mortgaged  Property then without  prejudice to Clause 7 below
the Bank is hereby authorised as agent for the Mortgagor to remove store sell or
otherwise deal with any furniture or goods  whatsoever which the Mortgagor shall
fail or refuse to remove from the Mortgaged  Property within seven days of being
requested  so to do by notice from the Bank and the Bank shall not be liable for
any loss or damage  occasioned to the Mortgagor.  The Mortgagor  shall indemnify
the Bank against all expenses incurred by the Bank in relation to such furniture
or goods and the Bank shall  account to the  Mortgagor  for the  proceeds of any
such sale after deducting any such expenses.

6 The statutory powers of leasing or of accepting surrenders of leases conferred
on  mortgagors  shall not be exercised by the  Mortgagor nor shall the Mortgagor
pan with  possession  of the  Mortgaged  Property or any part thereof nor confer
upon any person firm company or body whatsoever any licence right or interest to
occupy the Mortgaged Property or any part thereof without the consent in writing
of the Bank  but the Bank may  grant or  accept  surrenders  of  leases  without
restriction.

7(a) At any time after the power of sale has become  exercisable the Bank may by
writing  under the hand of any Manager of the Bank appoint any person or persons
to be  receiver(s)  of the  Mortgaged  Property or any part or parts  thereof (a
Receiver).  The Bank  and/or  any  Receiver  appointed  hereunder  may  (without
prejudice  to  any  other  powers  howsoever   conferred)  enter  the  Mortgaged
Property.,  or any  part(s)  thereof  (whether  or not  any  income  is  arising
therefrom)  and  shall  (severally)  have  full  power (i) to do any act or deed
whatsoever  (in the case of the Bank and any  Receiver for and in the name of or
on behalf of the  Mortgagor or in the case of the Bank as Mortgagee) in relation
to or in  connection  therewith  which the  Mortgagor  was (or might  have been)
capable  of doing  and  irrespective  of the  Mortgagor's  death  insolvency  or
incapacity and treating the Mortgagor  conclusively as sole legal and beneficial
owner  (including  (without  limitation)  power to manage build complete  layout
repair  cleanse  develop use deal with apply for  registration  permissions  and
licences  equip  furnish  get-in  receive and collect  moneys  arising sell give
effective  receipts  exchange  lease  licence  sub-lease  surrender  and  accept
surrender of leases convey assign transfer  covenant  exercise  statutory rights
insure  litigate  contract  compromise  employ  agents and  servants and provide
services)  and (ii) to conduct any business  carried on or in the opinion of the
Bank or any  Receiver  capable  of being  carried  on in or from  the  Mortgaged
Property and shall in connection  therewith  have all of the powers  referred to
above.  Any expenditure  incurred in so doing shall be immediately  repayable by
the  Mortgagor  with  interest  at the rate  aforesaid  and shall be a liability
charged on the Mortgaged Property in priority to all other sums secured thereon.
The Bank and any Receiver may utilise any moneys from time to time  received for
the  purpose of  financing  any  expenditure  or costs at any time  incurred  in
connection  with the  exercise of any powers  hereby or  otherwise  conferred in
advance of any other  payments or  application  (whether under Section 109(8) of
the Law of Property Act 1925 of otherwise), Any Receiver may




borrow and/or secure the payment of money which may be required for the exercise
of any of the powers hereby or otherwise conferred in such manner (including the
creating of new legal  charges of the Mortgaged  Property  whether or not having
priority to this Mortgage) as may be considered expedient.  Neither the Bank nor
any Receiver  shall be liable to the  Mortgagor as  mortgagee in  possession  or
otherwise  for any loss  howsoever  occurring in the exercise of any such powers
and any  Receiver  shall be the  agent of the  Mortgagor  (who  shall be  solely
responsible for his acts defaults and remuneration).  Section 109(6) of the said
Act shall apply as though the words "not  exceeding five per centum of the gross
amount of all money  received" were omitted.  The Mortgagor  hereby  irrevocably
appoints  the  Bank  and any  Receiver  as  agents  and  attorneys  to  exercise
(severally)  any of the said  powers.  The powers of attorney  hereby  given are
given by way of security.  The powers hereby  conferred may also be exercised by
any  substitute or delegate  appointed in writing by the Bank or any Receiver or
by any  attorney of any of them or by any  substitute  or delegate  appointed in
writing by any such  attorney for and in the name and on behalf of the Mortgagor
the  Receiver  or the Bank as the case may be and any such  exercise by any such
substitute  delegate or attorney  shall be treated by the Mortgagor and the Bank
and shall be  effective  in all  respects  as an  exercise by the Bank or by the
Receiver as the case may be. The Bank and any Receiver (including any substitute
delegate or attorney  as  aforesaid)  in  connection  with any powers  howsoever
conferred  may do all acts and  things and  execute  all such deeds and sign all
such  agreements or enter into or make all such  arrangements as may be required
of as they may  consider  necessary  or desirable in relation to the exercise of
any such powers.

(b) If the  Mortgagor is not a company then the  Mortgagor  hereby (i) grants an
irrevocable  licence  to  the-Bank  and to any  Receiver  until  the sale of the
Mortgaged  Property  to use all the  assets  of the  Mortgagor  situated  at the
Mortgaged  Property  which  are  used in  connection  vath any  business  of the
Mortgagor  carried on at the  Mortgaged  Property and (ii)  further  irrevocably
authorises  the Bank and/or any Receiver to remove sell store or otherwise  deal
with the same and to pay any net  proceeds of sale after  deduction of any costs
and expenses  relating  thereto to the Bank which shall account to the Mortgagor
for the proceeds of any such sale aftw deducting any such expenses.

8 If the Bank receives or is deemed to be affected by notice  whether  actual or
constructive  of any subsequent  charge or other interest  affecting any part of
the  Mortgaged  Property  and/or the proceeds of sale  thereof  and/or any other
property  hereby  charged the Bank may open a new  account or accounts  with any
person for whose liabilities this Mortgage is available as security.  N the Bank
does not open a new account it shall  nevertheless  be treated as if it had done
so at the time when it  received  or was deemed to have  received  notice and as
from that time all payments  made to the Bank shall be credited or be treated as
having  been  credited  to the new  account  and shall not operate to reduce the
amount for which this Mortgage is security.

9 In case the Mortgagor  shall have more than one account with the Bank it shall
be lawful for the Bank at any time and without  any prior  notice  forthwith  to
transfer  all or any part of any  balance  standing  to the  credit  of any such
account  (whether current or otherwise or subject to notice or not) to any other
such account  which may be in debit but the Bank shall  notify the  Mortgagor of
the transfer having been made. If any credit balance is in a different  currency
from any debit  balance the Bank shall be  entitled  to utilise  currency of the
credit balance for the purchase at its spot rate of exchange of an amount in the
currency of the debt balance not  exceeding the amount of such debit balance and
also to pay out of the credit  balance any  additional sum which the Bank may be
required to pay for such currency.

10 None of the  persons  included in the  expression  'the  Mortgagor"  shall as
against the Bank be entitled to any of the rights or remedies legal or equitable
of a surety as  regards  the  indebtedness  or  liabilities  of any of the other
persons included in the expression "the Mortgagor".

11 A demand or notice  hereunder  shall be in  writing  signed by an  officer or
agent of the Bank and may be  served on the  Mortgagor  by hand or by post or by
facsimile  machine (fax).  In the case of a company  service by hand may be made
either by  delivering  the same to any  officer  of the  company at any place or
leaving the same addressed to the company at its  registered  office or place of
business  last  known to the  Bank.  A demand or notice by post or by fax may be
addressed to the Mortgagor at the registered office address or place of business
last known to the Bank and shall be deemed to have been  received  if posted two
days  after  the day on  which it was  posted  and if sent by fax at the time of
transmission.  It shall be effective  notwithstanding it be returned undelivered
and  notwithstanding  the death of the Mortgagor.  The Bank may use the last fax
number of the Mortgagor known to it and transmission may be proved by production
of  an  activity  or   transmission   report  which  purports  to  indicate  the
transmission of a message to such a number.

12 If the Mortgagor is a company the Mortgagor certifies that this Mortgage does
not contravene any of the provisions of the company's Memorandum and Articles of
Association and has been executed in accordance therewith.

13 This Mortgage shall be governed by and construed in accordance  with the Laws
of England.

In Witness whereof this Deed has been executed by the Mortgagor the day and year
first before written.



















                                                            ID      C041410
Signed as a Deed by the Mortgagor acting by
                                            Director
Name in full
(in block letters)

                                            Director/Secretary*
Name in full
(in block letters)

*delete as applicable

or alternatively:

The Common Seal of
Vicon Industries (UK) Limited

was hereunto affixed
in the presence of
                                            Director

                                            Secretary


I/We acknowledge receipt of a completed copy of this document.  If executed by a
company  the  acknowledgment  must be signed  by a  Director  or by the  Company
Secretary Secretary



                                  Signature(s)










                                                          ID      C041410


Solent Securities Centre

East Solent Corporate Business Centre

Vicon Industries (UK) Limited

Dated    9th April  1997
Vicon Industries (UK) Limited
to
National Westminster Bank Plc
Legal Mortgage

of Leasehold property situate at

Site P3 Brunel Way Segensworth Industrial Estate Segansworth East.
Fareham Hampshire


Chsl018o NWB1115(RevMayl995)




This Release made the                                              day of

One thousand nine hundred and                                Between

the within-named National Westminster Bank Plc (the Bank) of the one part and
the within-named

of the other part Witnesses that the Bank as Mortgagee  hereby  releases all and
singular  the property now  comprised in or charged by the  within-written  Dead
from  all  moneys  secured  by  and  from  all  claims  and  demands  under  the
Within-written Deed.


In Witness whereof this Deed has been duty executed on behalf of the Bank by its
duly authorised Attorney the day and year first before written.


Signed and Delivered as a Deed by

as the Attorney and on behalf of the Bank

In the presence of

Bank Official                                     Signature of Witness




                           COMMERCIAL FIXED RATE LOAN

                                    Agreement
                                    (Company)

      We, National  Westminster  Bank Plc and any person to whom we transfer our
      rights or duties under this agreement  agree to offer you a loan under the
      terms and conditions set out below and on the attached appendix.  The
      first part of the appendix explains some of the words and phrases used in
      this agreement.

1.      Date of offer: 24 March 1997

2       Your  name-  VICON  INDUSTRIES  (UK)  LTD  (1551194)  Brunel  Way,
                     Segensworth East, Fareham, Hampshire P015 5TX

3    Lending Branch: 130 Commercial Road, Portsmouth, Hampshire PO1 1ES

4    Amount: 500,000 (Five hundred thousand pounds)

5    Purpose of  the Loan:  To uplift Japanese Yen loan from Chugai Boyeici Co 
     Ltd  and to provide working capital

6    Period of the Loan: 10 years

7    Interest rate

         A fixed rate of interest for the whole period of the Loan.(Please see:
      -  paragraph 4 of the appendix for how we work out the interest; and
      -  paragraph 5 of the appendix for how we fix the rate of interest.)

        (Please see paragraph 4 of the appendix for how we work out interest)

8    Fee: 5,ooo pounds due on the date on which you accept our offer as set out
     in paragraph 3 of the appendix.

9   Drawing the Loan; You must draw the loan in full in one amount.

10  Repayment: You must have repaid the Loan in full on the last day of the
      period shown in term 6 of this agreement.

      Subject always to our rights under paragraph 13 of the appendix,

           You will repay the Loan by 120 equal instalments of principal payable
           every one month  starting  one month after the date on which you draw
           the Loan.


11 Security:

   - First Legal Mortgage over Site P3, Brunel Way, Scgensworth
     Industrial Estate, Fareham, Hampshire.


12    Value  of  Security:  The  Security  shown  in term  11 of this  agreement
      together  with  any  security  provided  pursuant  to  paragraph  6 of the
      appendix must be worth (calculated according to our own basis of valuation
      from time to time) at least 100 percent of the amount which you owe at any
      time on the Loan.


13 Financial agreements:

   You agree to the following:-

   Please see paragraph 2 of the appendix for an  explanation  of
   the words and phrases used below.

    a. You will not allow Tangible Net Worth to be less than 450,000 pounds
    b. You will not allow Cash Generated to be Less than 100 percent of Debt
       Service Costs.
    c. You will not allow Profit to be less than 200 percent of Borrowing Costs.





                    COMMERCIAL FIXED RATE LOAN

      d. You will not,  without our prior written consent either create,  extend
      or increase any security  interest on the whole or any part of your or the
      Group's  undertaking,  property  or assets  (including  uncalled  capital)
      whether present or future. Security interest includes (without limitation)
      liens, pledges, charges, mortgages or other encumbrances.

      e. You will provide us with such financial and other information  relating
      to you or to the Group as we may  reasonably  require  including  (without
      limitation)  copies of the audited  accounts not later than 5 months after
      the end of the accounting period to which they relate.

      In order to verify whether you are complying with these covenants, we will
      refer to your annual audited accounts'.

14 Overdue payments:

If you do not make any payment under this agreement on the date it is due, then,
without  prejudice to our other rights,  we will charge  interest on the overdue
amount  from the date it was due to the date upon which we receive  payment  (as
well after as before  judgement).  This will be  calculated  (and  compounded in
accordance with our normal  practice) on the basis of a year of 365 days and the
actual number of days elapsed.

You will pay interest to us at a rate which is equal to the sum of:-

           5 percent per year; and
           our base rate from time to time

Any late payments may be debited to a Separate account.

15   Early Repayment:

Paragraph 8 of the appendix  gives  details of how you may ask to repay the Loan
before the specified  repayment  dates.  In connection  with  paragraph 8 of the
appendix, the prepayment fee is 0.5 percent. of the amount which you prepay.




























                           COMMERCIAL FIXED RATE LOAN

                                    Appendix

1    Agreement

     This appendix forms part of the agreement between us.

     If we refer to a paragraph, this will mean a paragraph of this appendix. if
     we refer to a term this will mean a term of the agreement.

2    Meanings of words and phrases used in this agreement:

the  'Agreement  Date'  means the date on which our offer Is accepted in the way
set out in paragraph 3 of the appendix.

'Business  Day' shall mean a day on which  banks in general are open in the City
of  London  for  the  transaction  of  business  of the  nature  set out in this
agreement.

'Event of Default' shall mean any event specified in paragraph 13 of the
appendix.

'the Group'  means you and your (of where your Parent is specified in term 2(b),
your Parent and its) subsidiary  undertakings  (as defined by Section 258 of the
Companies  Act 1985)  taken as a whole  (and,  save where the  context  does not
admit, any of them  individually);  if there are no subsidiary  undertakings for
the time being,  references  to the Group shall be taken to be references to you
and the word  'consolidated"  in  relation to any  accounts  or other  financial
matters shall be ignored.

the 'Loan'  means the loan  facility  which we have agreed to provide  under the
terms and subject to the conditions of this agreement and, where  necessary,  it
will mean all amounts owed under this agreement.

'The Offer Date' is the date shown in term 1 of the agreement.  This is the date
on which we make the written offer of the Loan.

"your Parent" is the company shown in term 2(b) of the agreement

'Option' means either of the interest rate options shown in term 7 of the
agreement

'Quotation' means a statement from us in response to a request under paragraph 5
of the appendix  giving  details of a period and an interest  rate and any other
terms under which we are willing to provide the Loan.

'The Quotation Date' is the date on which we make a Quotation.

'Security'  means the security  shown in term 11 of the  agreement and any other
security which you provide under paragraph 6 of the appendix.

"Subsidiary Undertaking'  shall mean a  subsidiary  undertaking  (as defined by
S.258 of the Companies Act 1985).

The following  definitions  apply to the financial  agreements in term 13 of the
agreement.

          'Borrowing  Costs'  means,  in respect of any  financial  period,  all
           continuing,   regular  or  periodic   costs,   charges  and  expenses
           (including but not limited to, interest and any capitalised interest)
           incurred by the Group in effecting,  servicing or  maintaining  Total
           Borrowing.

           'Capital  Expenditure' means, in respect of any financial period, the
           aggregate  expenditure  of the Group on the  purchase of fixed assets
           (as determined in accordance  with generally  accepted United Kingdom
           accounting principles (consistently applied)).

        'Cash Generated' means, in respect of any financial period, the sum of:-
           -   Profit;plus
           -   an amount equal to the depreciation charged on fixed assets of
           the Group during such period and any other non-cash movements; plus
           -   an amount equal to any decrease in net working capital (being,
           in respect of any period, the net surplus (or deficit) of the
           aggregate stock in trade of the Group and the





                           COMMERCIAL FIXED RATE LOAN

amount  owed to members of the Group by debtors  less the amount owed by them to
creditors  at the end of such  period);  plus - the  proceeds of new ordinary or
other non-redeemable shares issued by you during  such period.

LESS the sum of:-
- - an amount  equal to tbe tax paid by tbe Group during such period, plus
- - an amount equal to any increase in net working capital (as defined-above)
during such period; plus
- - an amount equal to the Capital  Expenditure  (including  investments)  by the
Group during such period less an amount equal to the net proceeds of disposal of
fixed assets during such period;  plus
- - an amount equal to the aggregate amount of dividends on ordinary shares paid
by you during  such  period;  plus
- - any receipts of the Group by way of extraordinary items during such period.

'Current  Assets'  means all assets of the Group which would be  classified,  in
accordance  with  generally  accepted  United  Kingdom   accounting   principles
(Consistently applied) as current assets.

'Current  Liabilities'  means  all  liabilities  of the  Group  which  would  be
classified,  in accordance  with generally  accepted  United Kingdom  accounting
principles (consistently applied) as current liabilities.

'Debt Service Costs' means, in respect of any financial period:-

(i) all interest, commission,  periodic fees and other financial charges payable
by any member of the Group during such period  (including  the interest  element
payable under financial leases); plus

(ii) the  aggregate  amount of all dividend  payments on  redeemable  Preference
shares (and other redeemable shares) made by you during such period, plus

(iii) the  aggregate  amount of all debt  repayments  made by any  member of the
Group  or  due  from  any  member  of the  Group  (including  redemption  of any
redeemable preference shares) during such period.

'Net Cash Flow before Financing' means in respect of any financial period, the
sum of:-
i.  Profit, plus
ii. an amount equal to the depreciation charged on fixed assets of the Group
    during such period and any other non-cash movements during such period; plus
iii.an amount equal to any decrease in net working capital (being, in respect of
    any period the net surplus (or deficit) of the aggregate  stock in trade of
    the Group and the amount  owed to members of the Group by debtors  less the
    amount owed by them to creditors at the end of such period);

LESS the sum of:-
i.   an amount equal to the tax paid by the Group during such period, plus
ii.  an amount equal to any increase in net working capital (as defined above)
     during such period, plus
iii. an amount equal to the Capital Expenditure (including  investments) by the
     Group during  such  period  less an amount  equal to the net  proceeds of
     disposal of fixed assets during such period, plus
iv.  an amount equal to the interest paid (less interest received) for such
     period, plus
v.   an amount equal to the aggregate amount of dividends on ordinary shares 
     paid by you during such period; plus
vi.  any receipts of the Group by way of extraordinary items during such period.









                           COMMERCIAL FIXED RATE LOAN

           'Net Working Assets' in respect of any period, the.aggregate stock in
           trade of the Group and the  amounts  owed to  members of the Group by
           trade debtors less the amounts owed by them to trade creditors at the
           end of such period.

           `Profit'  means,  in respect of any financial  period,  the amount of
           profit  of the  Group  (excluding  profit  attributable  to  minority
           interests)  before  taxation,  interest  payable,  and  any  unusual,
           extraordinary or exceptional items.

           `Tangible  Net  Worth'  means the  amount  the time  being paid up or
           credited as paid up on your (or,  where your Parent is  specified  in
           term 2(b),  your Parent's)  issued share capital plus all reserves of
           the Group which would, in accordance  with generally  accepted United
           Kingdom accounting  principles  consistently applied be classified as
           shareholders   capital  plus  retained  earnings  of  the  Group  but
           deducting  assets the Group  which  would,  in  accordance  with such
           principles, be classified as intangible assets.

           `Total Borrowing' means the total outstanding principal amount of all
           borrowings or monies  otherwise  raised by the Group from all sources
           whatever,  whether by way of  debenture,  mortgage,  unsecured  loan,
           overdraft or in any other  manner  (including  redeemable  preference
           shares) plus the aggregate face amount of all  discounted  acceptance
           credits.

3    Availability of Loan

From the Offer  Date shown in term 1 of the  agreement  you will have 3O days in
which you can draw the Loan.  However,  you can only  accept this offer and draw
the Loan if we have received the following items from you and are satisfied with
them:-

     a) A copy of this agreement with the acceptance form signed on your behalf.
     b) A certified copy of a resolution of the board of directors showing that
            it
         -  accepts the terms and conditions of the Loan;
         -  agrees to give the security set out in term 11 of the agreement; and
         -  authorises a person or persons to take such other action on your
            behalf as may be necessary for the purpose of the agreement.
     c) A copy of your Memorandum and Articles of Association certified by your
        secretary or a director as being up to date (including copies of all
        amending resolutions).
     d) The security set out in term 11 of the agreement together with
        copies of such certified  board  resolutions and copies of Memoranda
        and Articles of Association from the giver(s) of such security as we
        may require.

      You must give us three days' notice of your intention to draw the Loan.
      These days must be Business Days. We will credit your current account with
      the amount of the Loan on the day on which you accept the Quotation.
      You may not draw the Loan unto we are satisfied  that you have accepted a
      Quotation.

      Acceptance  of the offer  contained In this  agreement  may be effected by
      receipt by us at the lending  branch (please see term 3 of the  agreement)
      within thirty days of the date specified In term 1 of the agreement Of the
      items specified in this paragraph.

4    Interest

             We will work out  Interest on the  balance of the loan  outstanding
from day to day on the basis of the actual  number of days elapsed and a 365 day
year.
















                           COMMERCIAL FIXED RATE LOAN

      You must pay  interest to us on our usual  charging  days in March,  June,
      September and December or by combined  interest and principal  instalments
      (where  specified under term 10) on such dates as are specified under term
      10 of the agreement.

      Option 1:
      You will pay a fixed rate of interest for the entire period of the Loan as
      specified in your Quotation.  This rate of interest will be the rate shown
      in the Quotation.

      We may charge interest to your current account or to your loan account.

      If you do not make any payments on the due date under this agreement, then
      the  rate of  interest  specified  in term 14 shall  apply to any  overdue
      amounts.

5    Fixed Rate of Interest

     You must give us three days notice in writing of the date on which you want
     to draw the Loan.  All these days must be Business Days

     If we have received the items listed in paragraph 3 of this appendix
     (within the time period set out there), you may ask for a Quotation at any
     time up to 4 p.m. on the required day for the Loan (which must be a 
     Business Day).  You must also tell us the interest rate option you want.

     You must accept or reject our Quotation  immediately.  If you do not accept
     the Quotation immediately you shall be deemed to have rejected it.

     Once you have  accepted the  Quotation we will normally send to you written
     details of the terms of the  Quotation.  These  details  will  include  the
     interest  rate and the period for which such rate applies  repayment  dates
     and  repayment  instalment  amounts but if you do not receive these written
     details it will not affect  your  obligations  in respect of the  Quotation
     which you have accepted.

     Accepting  the  Quotation in any way (whether by telephone  telex or in any
     other  way ) shall be  binding  on you and will  mean that you will have to
     borrow  the full  amount of the Loan as set out in this  agreement  and the
     Quotation on the Quotation Date.

     If we do not receive  instructions  from you in  relation to the  Quotation
     which you have  accepted  we shall be  entitled to credit the amount of the
     Loan to a current  account in your name at the lending branch shown in term
     3 of the agreement and you shall be deemed to have drawn the Loan.

6    Security

     You must give us the security  shown in term 11 of the  agreement  and this
     will be a  continuing  security  for the  discharge  on  demand of all your
     indebtedness and your other liabilities to us from time to time.

     You undertake to provide any extra  security  which we need to maintain the
     value of the Security at the level  specified  in term 12 of the  agreement
     within such period as we may require. The open market value of the Security
     shall be  determined  at our  option  from  time to time by an  independent
     professional valuation. You will have to pay for this valuation.

7     Fees and Costs

      We have the right to debit your  current  account with the fees set out in
      term 8 and 15 of the agreement.















                           COMMERCIAL FIXED RATE LOAN

8    Early Repayment

You may  repay the Loan  early  subject  to you  giving  us five  business  days
irrevocable  written notice and subject to you  indemnifying us for the breakage
costs  and  losses  sustained  or  incurred  by us as a  result  of  such  early
repayment. The breakage costs of such early repayment will until further notice,
be calculated in accordance with the formula  provided in the attached  schedule
and it is understood that the breakage costs and losses can only be confirmed on
the day early redemption takes place.

On early  repayment of the Loan you will also have to pay us the  prepayment fee
set out in Term 15 of the agreement.

A  certificate  by one of our officers as to the amounts due from you under this
paragraph shall, save for manifest error, be conclusive evidence (and admissible
as such) against and binding on YOU.

You cannot reborrow any amount you have pre-paid.

9   Liability

If you are more than one person then the expression "you" shall mean all of such
persons  and (save  where  the  context  does not so admit)  any of them and the
obligation of those persons shall be joint and several.

Each such person  irrevocably  appoints  each other  person as his agent for the
service of any demand or notice under this agreement.

10   Current Accounts

You agree to maintain a current  account  with us  throughout  the period of the
Loan.

11   Payments

We may transfer amounts from your current account to meet the repayments set out
in term 10 of the agreement.

We may use any  repayment  instalment  (including  instalments  of principal and
interest) or any part of any repayment instalment to:

- - reduce the amount of principal outstanding on the Loan.
- - pay interest accrued on the Loan.
- - discharge any other payment due under this agreement.
You must make all  payments  under  this  agreement  In full in pounds  sterling
without  any   deduction  or   withholding   (whether  in  respect  of  set-off,
counterclaim,  duties,  taxes,  charges  or  otherwise  howsoever).  if you  are
compelled by law to make any deduction or withholding,  you will promptly pay to
us such  additional  amounts as will make the net amount received by us equal to
the full amount payable by you had there been no deduction or withholding.

12    Set Off

We shall be entitled to set off against any of your liabilities to us under this
agreement  (whether  present,  future,  actual or contingent) any of your credit
balances on any of your accounts with us or in your name. We do not have to give
you any prior notice to do this.















                           COMMERCIAL FIXED RATE LOAN

13   Default

If any of the  following  events  occur,  we may, by giving you written  notice,
cancel our  outstanding  commitments to you (including the  availability  of the
Loan  if you  have  not  drawn  it)  and  demand  immediate  repayment  of  your
indebtedness to us and exercise our rights under any Security:-

     (a) If you breach any term or condition  (including  any  covenant) of this
         agreement.

     (b) If you do not make any payment on the date it is due under this
         agreement and whether by way of principal, interest or otherwise.

     (c) If you do not use the Loan for the purpose set out in term 5 of the
         agreement.

     (d) If the  Security  or any part of the  Security  shall cease to be fully
     enforceable  in  accordance  with its terms or with effect from the date on
     which the  determination  of the  continuing  nature of the Security or any
     part of the Security occurs,  such continuing nature is determined  whether
     such determination be by actual or constructive notice or be deemed to have
     occurred or any binding undertaking provided in the Security or any part of
     the Security  shall be breached or any guarantor  gives or purports to give
     notice to terminate its  liabilities  under any guarantee in respect of the
     Loan.

     (e) If you sell or dispose of any asset listed in term 11 of the  agreement
         or it ceases to be in your sole possession.

     (f) If your current account becomes overdrawn after the debiting of any
         payment due from you under the Loan or it becomes overdrawn in excess
         of any limit agreed with us and you do not offer payment in cash to us
         when we inform you of this.

     (g) If any  representation,  warranty  or  statement  made  to us by you in
     connection  with the Loan is breached or is false or if you fail to tell us
     anything which in our opinion is material to the Loan.

     (h) If you or any member of the Group make any  default in the  performance
         of any other  agreement for borrowed money whether with us or any other
         lender whereby the due date of repayment thereunder Is rendered capable
     of acceleration; or
         If any of your indebtedness or the indebtedness of any member of the 
     Group becomes or is declared by the holder or the lender thereof to he due
     and payable prior to its stated maturity or such indebtedness Is not repaid
     in full at its stated maturity; or
         If your  indebtedness or the indebtedness of any member of the Group is
     repayable On demand and is not repaid in full immediately upon demand being
     made or if any  guarantee  or  indemnity  given by any giver of security in
     connection  with any of your  liabilities  to us or the  liabilities of any
     member of the Group to us or any other leader is not honoured  when due and
     called upon.

     (i) If a petition is presented  or a resolution  passed for your winding up
     or that of any  member  of the  Group or a  petition  is  presented  for an
     administration  order to be made in  relation  to you or any  member of the
     Group; or
          your  directors  or the  directors  of any  member of the Group make a
      proposal for a voluntary  arrangement with your creditors or the creditors
      of any member of the Group; or 
          you are unable to pay your debts within the meaning of Section 123 of 
      the Insolvency Act 1986 or any member of the Group is unable to pay its 
      debts within the meaning of such section or an encumbrancer takes
      possession of or a receiver or an administrative receiver is appointed
      over any of your assets or over the assets of any member of the Group.

     (j) If there  shall  occur in our  opinion a material  effective change of
     control (as defined by Section 840 of the income and Corporation Taxes Act
     1988) of you or your Parent.












                           COMMERCIAL FIXED RATE LOAN


      (k) If there has occurred any change which in our reasonable  opinion is a
      material adverse change in your business, assets or financial condition or
      in the business,  assets or financial condition of the Group or any member
      of the Group which, in our reasonable opinion,  may affect your ability to
      comply with your obligations under this agreement.

      (1) If any judgement,  distress, warrant of attachment,  writ of execution
      or similar  process is Issued,  levied or enforced upon any of your assets
      or the  assets of any member of the Group or if any asset held by the Bank
      as security for the Loan is charged or becomes encumbered elsewhere.

      (m) If you or any  member of the Group  ceases  or  threatens  to cease to
      carry on its business or sells,  transfers or otherwise disposes of in any
      one transaction or series of related  transactions any substantial part of
      its assets.

14   Delay in exercising our rights

      If we delay in giving any  notice or  exercising  any of our rights  under
      this  agreement  this  should not he  construed  as a waiver of any of our
      rights.

15   Demands and Notices

Any demand or notice to you will be made in writing  and be signed by one of our
officers and served  either by personal  delivery on you at any place or by post
addressed to you at your place of business last known to us.  Service by post on
you shall be deemed to be effective  on the next  Business Day after the date of
posting  even  if it is  returned  undelivered.  Any  notice  to us  under  this
agreement  must be made in writing  and signed by a duly  authorised  officer on
your  behalf.  it must be  delivered  by hand or by post to the  lending  branch
specified in term 3 of the agreement.

16    Costs and Expenses

You will pay all costs, charges and expenses arising in connection with the Loan
and the Security including the negotiation and preparation of this agreement and
the Security and all costs,  charges and expenses arising in connection with the
preservation  and/or enforcement of our rights under this agreement or under the
Security  and will  indemnify  us for any and all  losses,  costs  and  expenses
occasioned by the occurrence of an Event of Default.

17     Increased Costs and Illegality

      (a) If we  determine  in our sole  opinion  that as a  result  of any law,
      regulation, directive or official request (whether or not having the force
      of  law)   ("Requirement")  or  compliance  by  us  with  any  Requirement
      (including  compliance by us with any change in any  Requirement or change
      In the  interpretation  of any  Requirement)  the  cost to us of  funding,
      maintaining  or making  available  the Loan (or any undrawn  amount of the
      Loan) is  increased or the  effective  return to us on the Loan is reduced
      then you shall pay to us on demand such sum as may he  certified to you by
      us as shall compensate us for such increased cost or such reduction.

      (b) If the effect of the  introduction  of or any change in applicable law
      or directive or the  interpretation of such law or directive is to make or
      purport  to make  the  Loan  unlawful  then  our  obligations  under  this
      agreement  shall  cease  and you  will  on  demand  pay to us all  amounts
      outstanding under the Loan.

















                           COMMERCIAL FIXED RATE LOAN



18    General Points

      (a) If at any time any one or more of the  provisions in this agreement is
      or becomes invalid, illegal or unenforceable in any respect, the validity,
      legality or enforceability  of the remaining  provisions of this agreement
      shall not in any way be affected or impaired.

      (b) Unless we expressly agree to do so in writing we do not hold ourselves
      out as providing advice on or considering the general  suitability of this
      Loan for your particular  circumstances  (including tax circumstances) and
      neither we nor our employees shall be liable for any indications  given as
      to such suitability.  We make no warranties or  representations  about the
      advisability of any underlying transaction entered into by you. You should
      obtain  independent  professional  advice  on such  matters,  and upon any
      Security required by us.

      (c) This agreement is governed by the laws of England.

      (d) All  expressions  in this letter bearing a plural meaning shall (where
      the context so admits) also bear the singular meaning and vice versa.

      (e) All  references  in this letter to any  statutory  provision  shall be
      deemed to include  any  statutory  modification  or  re-enactment  of such
      provision.

19   Representations and Warranties

You represent and warrant that you have full power to accept and be bound by the
terms and conditions set out in this agreement and to draw the Loan and that you
have  taken  all  necessary  steps  and  obtained  all  necessary  consents  and
authorisations  to do so and that  accordingly  this agreement  constitutes your
legal, valid and binding  obligations fully enforceable in accordance with their
terms.

You represent and warrant as follows:-

     (a) You are  duly  incorporated  and  validly  existing  under  the laws of
         England.

     (b) No Event of Default  has  occurred or is  outstanding  and no event has
         occurred which with the giving of notice or the lapse of time would
         constitute an Event of Default.

     (c) All  information,  exhibits and reports  furnished to us in  connection
     with this  agreement  were and remain true and accurate in all respects and
     do not omit any facts thereby rendering  misleading any statement contained
     therein.

     (d) The  representations  and  warranties  set out above shall survive your
     acceptance  of this  agreement  and the  drawing  of the Loan and  shall be
     deemed to be  repeated on each day  throughout  the period of the Loan with
     reference to the facts and circumstances existing at that time.



John McLellan

Manager
For and on behalf of
National Westminster Bank Plc












                           COMMERCIAL FIXED RATE LOAN
                               FORM OF ACCEPTANCE

        We accept the loan on the terms and conditions set out in this letter

By

For and on behalf of
VICON INDUSTRIES (UK) LTD

Date:    8-4-97





































                           COMMERCIAL FIXED RATE LOAN


                                    SCHEDULE

                   Indicative Calculation of Maximum Breakage Costs


                       Actuarial Style (Reducing Capital and Interest)

                       Original Loan Amount          500,000 pounds

                       Terms of Loan                 2 Years

                       Fixed Rate                    10.25 percent

                       Term Expired                  1 Year

                       Loan Amount Outstanding       251,505 pounds

                       Available Rate at Early
                       Repayment Date                8.625 percent

                       Breakage Costs                4,401 * pounds



      As a guide only, the formula which will apply, can be stated as follows:

                       Current amount of loan outstanding
                                  Multiplied by
               Remaining period (in years) to maturity of the fixture
                                  Multiplied by
           (Existing loan rate minus(Current available fixed rate for the
                                           remaining term - 0.125 percent))

 Actual breakage costs will be confirmed on the day early redemption takes place

*Note: The breakage cost payable is subject to a minimum of 0.125% of the amount
of the Loan, and is in addition to the 0.5 percent prepayment fee.