Extech RHT20 Humidity and Temperature Datalogger<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"> USB interface for easy setup and data download </span></li><li><span class="a-list-item"> Selectable data sampling rates from 1 second to 24 hours </span></li><li><span class="a-list-item"> LCD displays current readings， min/max and alarm status </span></li><li><span class="a-list-item"> Includes Windows 2000， XP and Vista compatible analysis software </span></li><li><span class="a-list-item"> Complete with 3.6V lithium battery， mounting bracket and combination lock </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41lU1qEALHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51n3y8aB-gL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mvEXJc-0L.jpg" noproxy>