EXHIBIT 99.1

      CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
                                   PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


I, Robert L. Demorest, certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of
my knowledge, the Quarterly Report of MOCON, Inc. on Form 10-Q for the quarterly
period ended September 30, 2002 fully complies with the requirements of Section
13(a) or 15(d) of the Securities Exchange Act of 1934 and that information
contained in such Form 10-Q fairly presents in all material respects the
financial condition and results of operations of MOCON, Inc.


                        By:  /s/  Robert L. Demorest
                             ------------------------------------------------
                        Name:  Robert L. Demorest
                        Title: Chief Executive Officer


I, Dane D. Anderson, certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of
my knowledge, the Quarterly Report of MOCON, Inc. on Form 10-Q for the quarterly
period ended September 30, 2002 fully complies with the requirements of Section
13(a) or 15(d) of the Securities Exchange Act of 1934 and that information
contained in such Form 10-Q fairly presents in all material respects the
financial condition and results of operations of MOCON, Inc.


                        By:  /s/  Dane D. Anderson
                             ------------------------------------------------
                        Name:  Dane D. Anderson
                        Title: Chief Financial Officer