3 ms·
I'm wanting a Co2 monitor that works without cloud and looked at some of the sensors available. Does the sensor in your project need to be taken outside to cal
by CommanderData 4y ago
I'm wanting a Co2 monitor that works without cloud and looked at some of the sensors available.
Does the sensor in your project need to be taken outside to calibrate?
I stopped when I realised many sensors (like scd30/40) need this making it very impractical.. Has to be done once while powered on the whole time in a 7 day period.
- ahaucnx 4y agoI think pretty much all indoor air quality monitors with NDIR sensors have by default an automatic baseline calibration. Our kicks in every 7 days. So you should somehow reach ambient CO2 levels once a week to have it properly calibrated.
- fotta 4y agoI don’t enable automatic calibration on my SCD30 because the algorithm basically assumes that the lowest ppm in the last 7 days is 400ppm and baselines to that. I just took mine outside once, set that to 400ppm and haven’t recalibrated it since. The drift on the sensor is supposed to be very low.