I highly recommend Bacharach for the co detector but I would seriously consider spending the money on a combustion analyzer with co detection. I have both a single gas co detector and combustion analyzer from Bacharach and would not have anything else.
Originally posted by mattm
1. c/o detector
2. Digital thermometer
I want them both certified so I can use them for calibration of logi-stats and c/o monitors. What's out there and actually kind of affordable. I know the affordable part sounds funny since I want them to be certified and all but I might as well try.
*Note* Don't post any UEI stuff.