Long-term feedback: SONOFF SNZB-02D humidity/temperature sensor
Long-term feedback: SONOFF SNZB-02D humidity/temperature sensor
I’ve been running three of these for about the same length of time - two things surprised me, but both are documented in their manual. First, the working temperature is -9.9℃~60℃/14℉~140℉, so if you plan to use one in an environment colder than ~10℃, the readout will flatline. Second, they use CR2450 battery, which is a little more difficult to find where I live than a CR2032.
Neither of these are criticisms, just things I wish I had noticed sooner.
That’s what the name means :D CR2032 is 20mm in diameter and 3.2mm thick.
Some smart home devices use the CR2450 rather than the CR2032.