4 ms·
this one is best: https://www.amazon.com/CO2Meter-AZ-0004-Temperature-Relative-Humidity/dp/B001PDGFR8 https://www.amazon.com/CO2Meter-AZ-0004-Temperature-Relati
by whitepoplar 9y ago
this one is best: https://www.amazon.com/CO2Meter-AZ-0004-Temperature-Relative-Humidity/dp/B001PDGFR8 https://www.amazon.com/CO2Meter-AZ-0004-Temperature-Relative...
- blacksmith_tb 9y agoI haven't tried either, but the parent has a +/- 50ppm margin, and this one[1] is +/- 5... 1: http://a.co/afxamMd http://a.co/afxamMd