Exhibit 23.1 Consent of Independent Auditors We consent to the incorporation by reference in the Registration Statements of Mace Security International, Inc. on Form S-8 (Registration No. 333-31757, filed on July 22, 1997) of our report dated April 15, 1999, with respect to the combined financial statements of American Wash Services, Inc. included in Mace Security International, Inc.'s Current Report on Form 8-K dated July 1, 1999 (as amended September 14, 1999 on Form 8-K/A), filed with the Securities and Exchange Commission. /s/ Burton Segal & Company Rosemont, Pennsylvania September 13, 1999