Garage-Shed-Alarm-Uni-Com-65555-p-The-Uni-Com-Garage-amp-Shed-Alarm-is-ideal-for-helping-to-protect-sheds-garages-&-other-areas-around-the-home-Quick-&-simple-to-install-with-no-wiring-required-The-loud-110-d BA-siren-is-activated-when-the-door-is-opened-&-the-magnetic-contact-becomes-separated-from-the-keypad-A-10-second-entry-delay-gives-you-time-to-deactivate-the-alarm-using-your-uniquely-programmed-4-8-digit-security-code-p-p-Requires-3-x-AA-batteries-not-supplied-p