Fortress Security Store Entry Alarm: Standalone Security Device Serving As A Loud Siren And Responsive Sensor.<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> • Battery powered to keep install simple and clean. Long lasting battery will make for a minimal expense over time. </span></li><li><span class="a-list-item"> • Loud built-in speaker that will operate as a siren or doorbell. Doorbell or siren will sound immediately if the sensor is triggered. </span></li><li><span class="a-list-item"> • Comes with double sided tape for clean install and removal. </span></li><li><span class="a-list-item"> • Small sleek design for less obtrusive appearance when installed. </span></li><li><span class="a-list-item"> • Affordable home security. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/311RynLYbqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31F1OFxcRAL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31%2Be2f3VU6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41F6F3PwnzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41XjDWeCUAL.jpg" noproxy>