Exhibit 31.1



Certification of COO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

                                CERTIFICATION

      I, John Marceca, certify that:

            1.    I have reviewed this quarterly report on Form 10-QSB
                  of DataMetrics Corporation;

            2.    Based on my knowledge, this 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
                  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 report;

            4.    The registrant's other certifying officer(s) 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 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 subsidiary is made
                        known to us by others within the entity,
                        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 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(s) and I
                  have disclosed, based on our most recent evaluation
                  of internal control over financial reporting, to the
                  registrant's auditors and the audit

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                  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 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 controls over financial reporting.




      Date:  June 1, 2007

      By:   John Marceca
          -----------------------------------------------------
            John Marceca, President and Chief Operating Officer



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