EXHIBIT 23.1


            Consent of Independent Registered Public Accounting Firm
            --------------------------------------------------------



The Board of Directors
Vicon Industries, Inc.:

We  hereby  consent  to the  incorporation  by  reference  in  the  Registration
Statements on Form S-8 (Nos. 33-7892, 33-34349, 33-90038,  333-30097,  333-71410
and 333-116361) and Form S-2 (No.  333-46841) of Vicon  Industries,  Inc. of our
report dated December 1, 2006,  relating to the  consolidated  balance sheets of
Vicon  Industries,  Inc. and subsidiaries as of September 30, 2006 and 2005, and
the related consolidated statements of operations, shareholders' equity and cash
flows and related  schedule for the each of the three years ended  September 30,
2006,  which report appears in the September 30, 2006 annual report on Form 10-K
of Vicon Industries, Inc.


BDO Seidman, LLP
Melville, NY

December 29, 2006