Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We have issued our report dated August 8, 2005 accompanying the consoli­dated financial statements and schedule of Ault Incorporated and subsidiaries which are included in the Annual Report on Form 10-K for the year ended May 29, 2005. We hereby consent to the incorporation by refer­ence of said report in the Registration Statements of Ault Incorporated and subsidiaries on Form S-3, File No. 333-100409 (effective October 8, 2002) and on Forms S-8, File No. 333-112103 (effective January 22, 2004), No. 333-51458 (effective December 7, 2000), No. 333-91389 (effective November 22, 1999), No. 333-08992 (effective October 22, 1997), No. 333-38455 (effective October 22, 1997), No. 333-04609 (effective May 28, 1996), No. 033-53988 (effective November 2, 1992), No. 033-33566 (effective February 20, 1990), No. 033-19662 (effective January 15, 1988), and No. 002-87376 (effective November 14, 1983).

/s/ Grant Thornton LLP

Minneapolis, Minnesota
October 5, 2005

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