Extech RH520A-240 Humidity Plus Temperature Chart Recorder 240V with Detachable Probe<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"> Graphical datalogger for Humidity/Temperature measurements and Dew Point calculation </span></li><li><span class="a-list-item"> Simultaneous numerical and graphical display of Humidity and Temperature readings， plus Time and Date </span></li><li><span class="a-list-item"> Measures Humidity (10 to 95-Percent RH) and Temperature (-20.0DegreeF to 140.0DegreeF) plus calculates Dew Point </span></li><li><span class="a-list-item"> Basic accuracy 3-Percent RH， 1.8DegreeF/1DegreeC </span></li><li><span class="a-list-item"> Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51We7wvHfaL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41xgvi9-MlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5192TzdIWJL.jpg" noproxy>