AirGradient Forum

UI for external CO2 Sensor calibration?

Components
#1

Hi,
my experiments with several Aranet 4 have shown, that on my urban terrace to CO2 value is easily 50 to 100ppm higher than on top of a nearby hill.
Others have confirmed my experiments.

Apart from other concequences, automatic calibration of a weekly low to 400ppm may create a systematic error in urban areas. (even in a non urban area this should be 430ppm).

For those with devices with better calibration, can we have a UI to calibrate an AirGradient device with an external value?

Thanks

#2

Hi @Gerd_c, welcome to our community, and thank you for your question.

Currently, the AirGradient Dashboard only supports settings for ABC (Automatic Baseline Correction) duration and requesting a manual CO2 calibration.

Hardware-wise, the SenseAir S8 seems to have only these options available as default as well. However, I have discussed this a bit with our CTO, and now we are reaching out to SenseAir to confirm what we can do in this case to improve the calibration.

I will give you an update once we get the information. Thanks!