When I try to pair it using ZHA, I get “Interview complete”, “Configuring”, and the device type HMSZB-120. But then nothing more happens.
I tried re-pairing (long-pressing the button on the device until it flashes many times), but the process gets stuck at the same stage.
Somewhere I read that it is entering sleep mode, and I therefore tried to repeatedly press the button on the sensor, every second or so, but this did not help.
After ages, it now showed up in the list of devices.
It also reports temperature and humidity.
However:
There is a “switch” entity
There is a battery entity (which seems fine), but it does not report anything
My impression is that somehow the configuration did not go as it should have.
Finally, pressing the button on the device to keep it awake during configuration seems not to work. Must it be pressed for a long or for a short time? How often?
zha paring can speed up if you pair it very close to a repeater near the place you want to position your new device. The closer you get it, the faster interview is done and no need to wait 2 hours