Guardline Wireless Driveway Alarm. Professional Outdoor Motion Sensor &amp; Detector Alert System w/.<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"> LIFETIME WARRANTY and AWESOME Seattle based tech support. </span></li><li><span class="a-list-item"> SUPER EASY installation. Quick Start Guide has you operational in minutes! </span></li><li><span class="a-list-item"> LOUD adjustable volume control. Over 30 ring tones to choose from. </span></li><li><span class="a-list-item"> Set includes one sensor/one receiver. Extra sensors and receivers can be added for COMPLETE COVERAGE of your gate， driveway， home， office， pool， or property. </span></li><li><span class="a-list-item"> LONG RANGE up to 500 ft from sensor to receiver (extra interference like trees， hills， walls， parked vehicles will diminish range) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/412uGthjxCL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/511P7DRXrBL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51WTZLz8-8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ChW7CEInL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51QzPOm8VPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51F9NaienKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/B1xVaEYXL5S.png" noproxy>