EXHIBIT 32.1

                            CERTIFICATION PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In connection with the Annual Report of Elecsys Corporation (the"Company")
on Form 10-KSB for the annual period ended April 30, 2008, as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), the
undersigned, in the capacities and as of the date indicated below, hereby
certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, that to my knowledge;

     1)  The Report fully complies with the requirements of Section 13(a) or
         15(d) of the Securities and Exchange Act of 1934; and

     2)  The information contained in the Report fairly represents, in all
         material respects, the financial condition and results of operations of
         the Company.


Date:  July 23, 2008                   /s/ Karl B. Gemperli
                                       -----------------------------------------
                                       Karl B. Gemperli
                                       President, Chief Executive
                                       Officer (Principal Executive Officer)


[A signed original of this written statement required by Section 906 has been
provided to and will be retained by Elecsys Corporation and furnished to the
Securities and Exchange Commission or its staff upon request.]