Parallax Ping Ultrasonic Range Sensor 28015<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"> Perform measurements between moving or stationary objects </span></li><li><span class="a-list-item"> Provides precise， non-contact distance measurements within a 2 cm to 3 m range </span></li><li><span class="a-list-item"> Burst indicator LED shows measurement in progress </span></li><li><span class="a-list-item"> Simple pulse-in/pulse-out communication </span></li><li><span class="a-list-item"> RoHS Compliant </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51OlKYpi2WL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41bigJGzfIL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ExkcJ3A8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/318Xa1JSUkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Tb-z0NJQL.jpg" noproxy>