Exhibit 31.2

CERTIFICATION

I, David W. Dunlap, certify that:

1. I have reviewed this
  annual report on Form 10-K of Socket Mobile, Inc.;

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 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 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 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; 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 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:
      March 12, 2009 | By:
      /s/ David W. Dunlap
      Name: David W. Dunlap
      Title: President of Finance and Administration and Chief Financial Officer
      (Principal Financial Officer)
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