A/C that looks to be a more accurate model, thanks
$3.45
http://www.ebay.com/itm/DHT22-AM2302...item566d189e8d
or spend 5.8x more for the real Swiss part, hehe
"SENSIRION swiss Digital Temperature Sensor Humidity Sensor original" (made in China)
$19.88
http://www.ebay.com/itm/1x-SHT15-SEN...item5412f9c09f
DIY method for wall or ceiling panels that A/C has posted before:
Renewable Hydronic Heating | Home Power Magazine
Click on Radiant Wall System Schematic