Many indoor air quality sensor products are a scam (temperature, humidity, pressure, CO2, TVOC)

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2022-09-29 20:00:37

i am seriously struggling with such “triviality” ie how to measure room temp/ humidity. I used 4 different devices, and all are reporting different values

I design electronics for a living. Some of them use environmental sensors such as temperature and humidity. I’ve also evaluated other companies’ designs for indoor air quality monitoring. Some of these I won’t mention (companies died), others I can’t remember because it’s been a while ago, but the ones I’m working on at the moment face the same issues (I work in mosquito research now, long story).

The industry of indoor air quality monitoring is broken and they don’t care because few customers ever realise their products are trash. Congrats for actually comparing measurements from different devices lenovomi, you are doing better than many large business’ that roll these things out.

All of your devices are lying to you unless they come with documentation that specifies their error (accuracy & reliability), expected product lifetime (aging) and how to use them properly (validity). If they don’t come with this very basic info then treat them as a scam.