Sensor unter Linux nutzen
http://forum.micasaverde.com/index.php/topic,4705.0.html
http://code.google.com/p/airsensor-linux-usb/wiki/About
http://wiki.micasaverde.com/index.php/CO2_Sensor#air.c_source_code
http://www.appliedsensor.com/products/indoor-air-monitor.html