AirGradient Forum

Outdoor monitor sensors

Components
#21

This is my last reply to this thread.

Your question has been answered. You do not like the answer. Thats a “you” problem.

You purchased an outdoor unit which lists CO2 as a feature, and you are upset that is has this feature. This is a completely illogical response.

I agree with you that I would like to see other sensors available. But that doesn’t mean the sensors it has now have no value. If you do not see the value in the existing sensors, then you should not have spent your hard earned money on the unit. Maybe next time, before you purchase something, look for a device that has the features you want and doesn’t include the ones that you don’t.

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#22

NO2, SO2 etc sensors with an acceptable accuracy are 5-10 more expensive than the CO2 sensor and have a much shorter life time (they need replacement every 1-2 years).

So using the CO2 as a proxy is a good way to capture more information about other gases in the air. Yes, it’s not perfect and I would wish that there are accurate low cost NO2 sensors available but we didn’t find one yet and we are actually testing some of them since a year or so.

The new Open Air Max will come with an option with NO2 and O3 using AlphaSense electro chemical sensors.

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