SECTION 906 CERTIFICATION:

                                                                  EXHIBIT 32.1


                           CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
                              ADOPTED PURSUANT TO
                 SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002



Certification of CEO


In  connection  with  the Quarterly Report of Sentry Technology Corporation (the
"Company")  on  Form  10-Q for the period ended March 31, 2008 as filed with the
Securities and Exchange Commission on the date hereof (the Report"), I, Peter L.
Murdoch, Chief Executive Officer of the Company, certify, pursuant to Section 18
U.S.C.  1350,  as  adopted  pursuant to Section 906 of the Sarbanes-Oxley Act of
2002,  that,  to  my  knowledge:

      (1)   The  Report  fully  complies  with the requirements of Section
            13(a) and 15(d)  of  the  Securities  Exchange  Act  of  1934; and

      (2)   The information contained in the Report fairly presents, in all
            material respects, the financial condition and results of operations
            of the Company.



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

                                     May 14, 2008


A  signed  original  of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears  in  typed  form  within  the  electronic  version  of  this     written
statement  required by Section 906, has been provided to the Company and will be
retained  by the Company and furnished to the Securities and Exchange Commission
or  its  staff  upon  request.

This  certification accompanies this Report on Form 10-Q pursuant to Section 906
of  the  Sarbanes-Oxley Act of 2002 and shall not, except to the extent required
by  such  Act,  be deemed filed by the Company for purposes of Section 18 of the
Securities  Exchange  Act  of  1934,  as  amended  (the  "Exchange  Act").  Such
certification will not be deemed to be incorporated by reference into any filing
under the Securities Act of 1933, as amended, or the Exchange Act, except to the
extent  that  the  Company  specifically  incorporates  it  by  reference.