Exhibit 31.2
                            CERTIFICATIONS

              I, G.E. Muenster, certify that:

          1.   I have  reviewed  this  quarterly  report  on  Form  10-Q of ESCO
               Technologies Inc.;

          2.   Based on my knowledge, this quarterly 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 quarterly
               report;

          3.   Based  on my  knowledge,  the  financial  statements,  and  other
               financial  information included in this quarterly 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 quarterly 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)) for the registrant and we have:

               a.   Designed such disclosure controls and procedures,  or caused
                    such disclosure controls and procedures to be designed under
                    our  supervision,   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
                    quarterly report is being prepared;

               b.   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

               c.   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  (the
                    registrant's  fourth fiscal quarter in the case of an annual
                    report)  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  of  internal  control  over  financial
          reporting,  to the  registrant's  auditors  and the audit and  finance
          committee  of  the   registrant'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 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 control over financial reporting.



     Date:    August 9, 2006


                                (s) G.E. Muenster
                                G.E. Muenster
                                Chief Financial Officer