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: May 9, 2006              /s/ Drew A. Moyer
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                               Drew A. Moyer
                               Senior Vice President and Chief Financial Officer
                               (Principal Financial Officer)