Mighty Mule R4222 Pair of 12V Photo Eye Sensors<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"> Convenient added safety for your gate system to Avoid unwanted closure </span></li><li><span class="a-list-item"> Easy DIY (DO it yourself) installation that includes 2 Photo beam sensors and mounting hardware </span></li><li><span class="a-list-item"> Direct wired application to your Mighty Mule gate system (not compatible with solar powered gate opening systems) </span></li><li><span class="a-list-item"> Required low-voltage wire (Rb509) not included; 100 ft.， 250 ft. And 500 ft. Lengths available </span></li><li><span class="a-list-item"> Backed by a 12 month Mighty Mule warranty and technical support </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41bsppJS-6L.jpg" noproxy>