Exhibit 31.2

                  CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

          Pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002

I, Drew A. Moyer, certify that:

      1.  I have reviewed this quarterly report on Form 10-Q of Technitrol;

      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 with 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 Technitrol 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 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 report is being prepared;

            b)    designed such internal  control over financial  reporting,  or
                  caused such internal  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 (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;

      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 committee of the
          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.


Date: August 9, 2005           /s/ Drew A. Moyer
      --------------           -----------------
                               Drew A. Moyer
                               Senior Vice President and Chief Financial Officer
                               (Principal Financial and Accounting Officer)