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                                                                    Exhibit 31.2

                                  CERTIFICATION

I, Thomas J. Neavitt, certify that:

1. I have reviewed this annual report on Form 10-KSB of Ingen Technologies,
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 small business
issuer as of, and for, the periods presented in this report;

4. The small business issuer'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)) for the small business issuer 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 small
        business issuer, 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) Evaluated the effectiveness of the small business issuer'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

                (c) Disclosed in this report any change in the small business
        issuer's internal control over financial reporting that occurred during
        the small business issuer's most recent fiscal quarter (the small
        business issuer's fourth fiscal quarter in the case of an annual report)
        that has materially affected, or is reasonably likely to materially
        affect, the small business issuer's internal control over financial
        reporting; and

5. The small business issuer's other certifying officer(s) and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, to the small business issuer's auditors and the audit committee of
the small business issuer'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 small business issuer'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 small business
        issuer's internal control over financial reporting.

Date: November 30, 2005


/s/ Thomas J. Neavitt
Thomas J. Neavitt
Secretary and Chief Financial Officer