Security Devices International Completes Private Financing

TORONTO, May 4 /PRNewswire-FirstCall/ -- Security Devices International -- (OTC Bulletin Board: SDEV), a developer of the LEKTROX family of wireless electric bullets, announces that it has raised an additional $316,000 ($297,000 after commissions and offering expenses) from the private sale of its common stock at a price of $2.25 per share. This is in addition to the $4.24 million of funding, net of commissions and offering expenses, announced by Security Devices on April 25, 2007.

Sheldon Kales, Chief Executive Officer of Security Devices, said, "These funds will allow us to move forward as planned to complete the development of our Lektrox ammunition series."

This press release does not constitute an offer to sell, or the solicitation of an offer to buy, any securities.

Security Devices has not authorized the release of this press release in any form that contravenes any law or regulation and will not be responsible for the unsolicited distribution of this material by e-mail or facsimile by unauthorized parties. Statements in this press release, which are not historical facts, are 'forward-looking statements' within the meaning given to that term in the Private Securities Litigation Reform Act of 1995. Security Devices intends that such forward-looking statements be subject to the safe harbors created thereby. Since these statements involve risks and uncertainties and are subject to change at any time, Security Devices' actual results could differ materially from expected results.

For more information about Security Devices visit its website: www.lektrox.com

Contact Security Devices at info@lektrox.com or phone Toll Free: 1877-LEKTROX 535-8769

SOURCE Security Devices International

Released May 4, 2007