Silent Knight SD500-MIM Fire Alarm Addressable Mini Input Module<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"> Addressable </span></li><li><span class="a-list-item"> Miniature </span></li><li><span class="a-list-item"> Intelliknight Accessory </span></li><li><span class="a-list-item"> Supports class B </span></li><li><span class="a-list-item"> Up to 2500 ft wiring distance from either input module to contact </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51VyIlPPhvL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/511Ey4hzy0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51PDdgTQ3FL.jpg" noproxy>