EXHIBIT 31.2


SECTION  302  CERTIFICATION:


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

Certification  of  Principal  Financial  Officer

I,  Joan  E.  Miller,  certify  that

1.   I  have  reviewed  this  annual  report on Form 10-KSB 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/  JOAN  E.  MILLER
                          -------------------------------------------------
                              Joan  E.  Miller
                              Vice  President  and  Principal  Financial Officer

                              April  11,  2008