Ecolink Intelligent Technology Z-Wave Plus Garage Door Tilt Sensor 2 Pack， White (TILT-ZWAVE2.5-ECO-2)<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"> Features gold plated tilt components industry leading reliability. </span></li><li><span class="a-list-item"> Easy installs with included flush mount bracket and begins to learn as soon as batteries power it up. </span></li><li><span class="a-list-item"> Five year battery life and discrete design keep it out of sight and out of mind when not on alert. </span></li><li><span class="a-list-item"> External contact input available for external triggers. </span></li><li><span class="a-list-item"> Works with most brands of Z-wave and Z-wave Plus home security hubs. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31Suso134NL.jpg" noproxy>