EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in Registration Statement (No. 333-62844) on Form S-8 of Elecsys Corporation of our report dated July 30, 2012, relating to our audit of the consolidated financial statements which appear in the Annual Report on Form 10-K of Elecsys Corporation for the year ended April 30, 2012.

Kansas City, Missouri

July 30, 2012