Honeywell Ademco 5816WMBR Brown Door / Window Transmitter w/ Magnet<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"> Dimensions: 3-1/16" H x 1-9/16" W x 1-3/16" D </span></li><li><span class="a-list-item"> Two zone transmitter with both built-in magnetic reed switches and wired closed circuit contact loop. </span></li><li><span class="a-list-item"> The 5800 Series of door and window transmitters provide the most reliable， convenient and cost effective solutions for security protection. These devices are powerful and versatile enough to help solve even the toughest， most labor intensive installa </span></li><li><span class="a-list-item"> With a demonstrated outdoor range of over a mile， the 5800 Series has the best performance of any transmitters available today. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41txBeoWypL.jpg" noproxy>