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It seems to be working correctly, although the CO2 sensor reacts slower than my hand built Arduino based device. This is probably because it has better power management and samples with more time in-between. I like that it has a built-in battery so I can move it to the window sometimes (it is recommended to allow the CO2 sensor to recalibrate from time to time on fresh air) It is great that it shows outside pollution levels from a global data collection network. Even in Budapest (my city) it has attached sensors nearby. It can be integrated with OpenHAB (open source home automation software), although new devices have a newer and backward-incompatible JSON data structure, so fixing that is an ongoing effort. The LCD cannot be turned down to very low levels, so I have to switch it off when I go to sleep (fortunately there is a dedicated button for that). The minimum brightness is so strong that you can use it as a night-lamp (a bright one). A night-mode with dark colors would be great.Read full review
Verified purchase: No
I used to recommend these. However, just last week, IQAir delisted all my sensors, including one which I have allowed them to list publicly and whose data they continue to provide to several thousand of their users, from my personal Devices page on their website. On contacting IQAir, I was told, “This is because a full view of all devices on the web dashboard has become a paying feature.”. Apparently IQAir will no longer provide access to my own data, or even to the page where I’m able to change device settings, without paying them an additional fee.
Verified purchase: No
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