1.0 link Rainbow Dash Network http://rainbowdash.net/ adiwan (adiwan) http://rainbowdash.net/adiwan http://rainbowdash.net/notice/4235959 @<span class="vcard"><a href="http://rainbowdash.net/user/796" class="url" title="Cloud Kicker"><span class="fn nickname mention">critialcloudkicker</span></a></span> It's an Arduino Nano. I wanted to have something that is more accurate than those cheap digital thermometers from the dollar store. Also having a graph is a nice bonus. That display has also a SD card slot if I want to record the air humidity and temperature over a long time. The one we have in the house is very old and the springs for the needles are all rusty. They are as reliable as a dice roll.