Autopilot APCEM Desktop CO2 Monitor<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"> Built in data logger can store 48 sets of CO2， temperature and humidity over 24 hours; one log every 30 minutes </span></li><li><span class="a-list-item"> Min/max mode records the maximum and minimum concentration of CO2 since the device was last turned on </span></li><li><span class="a-list-item"> High altitude setting allows you to compensate for specific location with adjustable altitude set points </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51CJ%2BpRtgYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51d-CdIuuJL.jpg" noproxy>