SECTION  302  CERTIFICATION


                                                             Exhibit  31.1

CERTIFICATION  PURSUANT  TO
SECTION  302  OF
THE  SARBANES-OXLEY  ACT  OF  2002

Certification  of  CEO

I,  Peter  L.  Murdoch,  certify  that

1.   I have reviewed this annual report on Form 10-K of Sentry Technology
     Corporation;

2.   Based on my knowledge, this annual 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 annual report, fairly present in all material
     respects the financial condition, results of operations and cash flows of
     the registrant as of, and for, the periods presented in this report;

4.   The registrant's other certifying officer and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over
     financial reporting (as defined in Exchange Act Rules 13a-15(f) and
     15d-15(f) for the registrant and we have:

     a)   designed  such  disclosure  controls  and  procedures to ensure that
          material  information  relating  to  the  registrant, including its
          consolidated subsidiaries,  is made known to us by others within
          those entities, particularly during the period in which this report
          is  being  prepared;

     b)   designed  such  internal control over financial reporting, or caused
          such control  over  financial  reporting  to  be  designed  under our
          supervision, to provide  reasonable  assurance  regarding the
          reliability of financial reporting and  the preparation of financial
          statements for external purposes in accordance with  generally
          accepted  accounting  principles.

     c)   evaluated  the effectiveness of the registrant's disclosure controls
          and  procedures  and  presented  in  this  report  our  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

     d)   disclosed  in this report any change in the registrant's internal
          control over  financial  reporting  that  occurred  during  the
          registrant's most recent fiscal  quarter  that  has  materially
          affected,  or  is  reasonably  likely to materially  affect,  the
          registrant's internal control over financial reporting; and

5.   The registrant's other certifying officer and I have disclosed, based on
     our most recent evaluation, to the registrant's auditors and the audit
     committee of registrant's board of directors (or persons performing the
     equivalent function):

     a)   all  significant  deficiencies and material weaknesses in the design
          or  operation of internal controls over financial reporting which are
          reasonably likely  to  adversely  affect  the  registrant'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 registrant's
          internal controls over financial  reporting.


                              /s/  PETER  L.  MURDOCH
                          -------------------------------------------------
                              Peter  L.  Murdoch
                              President  and  Chief  Executive  Officer

                              March 16, 2009