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 internal control over financial reporting
                  (as defined in Exchange Act Rules 13a-15(f) and 15d-15 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 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, within 90 days of
                        filing date of this quarterly 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 committee of registrant's board of directors (or
                  persons performing the equivalent function):



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                        (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 & Chief Operating Officer


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