CO2meter: A Python interface to USB CO2 monitor devices
Iam looking to build my own CO2 Meter for a while know. I even thought about making a little series as christmas presents. 
My struggle always was to pick the right module. Its so hard to pick one and really trust it when you don&#x27;t have a reference.<p>So i thought maybe i give this sensor a shot but i can&#x27;t find a reputable source for it. Does someone knows where to buy it or uses another module that works good?