I have three water leak sensors (2 sonoff, 1 aqara) but all three only show the battery and not the other sensors. They all worked perfectly fine with ZHA and are mentioned in the supported devices of Z2M.
I have no idea where to start searching. I hope one of you does <3
I have activated “Home Assistant legacy action sensors” but that did not change anything.
Currently i am running:
Sonoff:
Aqara:
It should work completely fine. I have Aqara water sensor SJCGQ11LM and they do give me these:
and I can see this in the state tab in Zigbee2MQTT:
{
“battery”: 100,
“battery_low”: false,
“device_temperature”: 23,
“linkquality”: 132,
“power_outage_count”: 9,
“tamper”: false,
“trigger_count”: 0,
“voltage”: 3005,
“water_leak”: false
}
One thing you can do is maybe completely forget / delete the entity and re-join. Maybe something went wrong in the joining process…
try triggering the sensor by holding your finger across the contact points. It should update.
good one! or just put them in the sink with a minimal level of water.
strange. i did comlpletely rebind it but with no success.
Rebinding with the yellow button in the overview does not work for some reason 
After starting the 5. time searching and googleing for the Problem I found a Reddit Post that helped.
https://www.reddit.com/r/homeassistant/s/aiarsJok0H
The Solution was to just Check the „retain“ Option in the Settings of that Sensor in Z2M and trigger it. As soon as i did trigger it. The value showed up (dry is now „inactive“) and also in the „Status“-Tab it has now all 4 Entitys.
Offtopic:
For some reasons it is not the First time I found a Solution After searching for it with some time between each try. Somehow my Google results Seem to change.
