EXHIBIT 31.1


                                CERTIFICATION OF
          CHIEF EXECUTIVE OFFICER AND ACTING CHIEF FINANCIAL OFFICER OF
                         UNIVERSAL DETECTION TECHNOLOGY

I, Jacques Tizabi, certify that:

1.   I have reviewed this Quarterly Report on Form 10-QSB of Universal Detection
     Technology;

2.   Based on my knowledge, this report does not contain any 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 such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial statements, and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations and cash flows of
     the small business issuer as of, and for, the periods presented in this
     report;

4.   I am responsible for establishing and maintaining disclosure controls and
     procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for
     the small business and have:

     a)   Designed such disclosure controls and procedures, or caused such
          disclosure controls and procedures to be designed under my
          supervision, to ensure that material information relating to the small
          business, including its consolidated subsidiaries, is made known to me
          by others within those entities, particularly during the period in
          which this report is being prepared;

     b)   Evaluated the effectiveness of the small business's disclosure
          controls and procedures and presented in this report my conclusions
          about the effectiveness of the disclosure controls and procedures, as
          of the end of the period covered by this report based on such
          evaluation; and

     c)   Disclosed in this report any change in the small business's internal
          control over financial reporting that occurred during the small
          business's most recent fiscal quarter (the small business's fourth
          fiscal quarter in the case of an annual report) that has materially
          affected, or is reasonably likely to materially affect, the small
          business's internal control over financial reporting; and

5.   I have disclosed, based on my most recent evaluation of internal control
     over financial reporting, to the small business's auditors and the audit
     committee of the small business's board of directors (or persons performing
     the equivalent functions):

     a)   All significant deficiencies and material weaknesses in the design or
          operation of internal control over financial reporting which are
          reasonably likely to adversely affect the small business's ability to
          record, process, summarize and report financial information; and

     b)   Any fraud, whether or not material, that involves management or other
          employees who have a significant role in the small business's internal
          control over financial reporting.

Date:  November 22, 2004


/s/  Jacques Tizabi
---------------------------------------------
By:     Jacques Tizabi
Title:  Chief Executive Officer and Acting
        Chief Financial Officer


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