Extech RH401 Triple Display Hygro Thermometer Psychrometer with Built In Infrared Thermometer<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"> Item is a Class II laser product， 1mW power output. </span></li><li><span class="a-list-item"> Built-in IR thermometer with laser pointer measures surface temperature from -40 to 932°F (-40 to 500°C) </span></li><li><span class="a-list-item"> Displays air temperature， humidity and surface temperature or dew point， humidity and surface temperature or wet bulb， humidity and surface temperature on a triple LCD with backlighting </span></li><li><span class="a-list-item"> Calculates the temperature difference between IR surface temperature and dew point </span></li><li><span class="a-list-item"> Can locate potential mold problems by spotting surface temperatures below the dew point </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/319RFM5MVHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31PK31TSJ3L.jpg" noproxy>