Hubbell Building Automation OMNIDT1000 Digital Passive Infrared and Ultrasonic Ceiling Occupancy Sensor， 1000-Square-foot Range<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"> Combines both ultrasonic (US) and passive infrared (PIR) technologies for unequaled occupancy detection and false trip immunity </span></li><li><span class="a-list-item"> Optional relay control for use with building automation systems and a photo sensor for automatic daylight harvesting </span></li><li><span class="a-list-item"> IntellADAPT provides true maintenance free "Install and forget" operation </span></li><li><span class="a-list-item"> 1000-Square Foot range </span></li><li><span class="a-list-item"> Dimensions: 4.2 x 1.8 x 2.1-Inch </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/21BitNt4UUL.jpg" noproxy>