New Air Gradient owner who just spent some time reading through the old discussion about the drift/calibration complexities before creating this account to post. Is there any chance we could be allowed to set the calibration value to something other than 400 ppm? It feels like 400 is an appropriate value value for 2015 and no longer the best value for a baseline calibration. Of course the best value varies by location, so I would love if I could set the value when I kick off a manual CO2 calibration.
If we can’t be allowed to set the value, then I’d rather see it be similar to the Aranet4 device which uses 420 ppm as the baseline after calibration, at least that’s closer to the current reality for outdoor air in many places.
Mike