344b-01.jpg
#MPX5700AP by Freescale
http://www.mouser.com/Freescale-Semicon ... h2Z1z0jaic
price around $16.
You can get them on ebay as well. It could be use to alert low CO2 when place inline.
Some arduino code that might help.
http://forum.arduino.cc/index.php?topic=191981.0Statistics: Posted by mistergreen — Wed Jul 30, 2014 5:35 pm
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