Have had a few of the Aqara Zigbee temperature and humidity sensors (the small square one), and from my experience they are pretty precise on both temperature and humidity. But, they only last like 6 months or so on the small CR2032 battery. So bought some other sensors off Aliexpress that identify as TH02Z, but the precision on temperature and humidity is not good, and can vary a lot. But, these run off an AA battery and last much longer…
So the big question, what are good, precise Zigbee temperature and humidity sensors that at least run off 1-2 AA batteries, and can last at least a couple of years?
Image comparing a few sensors below, the outdoor graphs compares one Aqara (in orange) with two TH02Z. The garage graphs compares one Aqara with one TH02Z. In all cases the sensors are placed right next to each other.
In summary the temperature seems to be possible to calibrate, but humidity is worse, the Aqara responds quicker and based on comparing with some Netatmo devices in my neighboorhood is quite spot on.
