We are pursuing IEQc1 and we would like to use CO2 sensors connected to an Open Source Arduino micro controller in order to manage the alarms, interface with other systems and publish to Pachube (http://www.pachube.com). Would it be an acceptable solution? Thanks in advance

Here you are the solution we'd like to use:

http://cdn.shopify.com/s/files/1/0019/5952/files/Senseair-Arduino.pdf