Linear DTKP Delta 3 310MHz Keypad Transmitter<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"> Activates Multiple Delta-3 Receivers </span></li><li><span class="a-list-item"> Frequency: 310MHz， Power: 9 V battery </span></li><li><span class="a-list-item"> Backlit keys for easy viewing </span></li><li><span class="a-list-item"> Codes: 1-8 digit PIN </span></li><li><span class="a-list-item"> Dimensions: 7.5 x 2.5 x .875 inches </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/318kWWNZ2wL.jpg" noproxy>