What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| On / off | state | — | settable |
| Battery | battery | % · 0…100 | read only |
| Voltage | voltage | mV | read only |
| Rod zero position | rod_zero_position | mm | read only |
| Rod length | rod_length | mm | read only |
| Rod position | rod_position | % · 0…100 | settable |
| External temperature | external_temperature | °C · -50…120 | settable |
| Control preset | control_preset | conservative, moderate, aggressive | settable |
| Climate | occupied_heating_setpoint, unoccupied_heating_setpoint, local_temperature, system_mode, local_temperature_calibration | heating setpoint, unoccupied_heating_setpoint, room temperature, mode, local_temperature_calibration | settable |
| Sensor source | sensor_source | internal, external | settable |
| Alarm | alarm | ok, never_calibrated, calibration_error_p0, calibration_error_p1_not_found, calibration_error_p1_too_close, calibration_error_p2_too_small, calibration_error_p2_not_found, calibration_lost | read only |
MQTT: state and commands
Zigbee2MQTT publishes the device state to zigbee2mqtt/my_device (my_device is the name you give the device). An example message:
{
"state": "ON",
"battery": 87,
"voltage": 2950,
"rod_zero_position": 0,
"rod_length": 0,
"rod_position": 50,
"external_temperature": 35,
"control_preset": "conservative",
"occupied_heating_setpoint": 21,
"local_temperature": 20.5,
"system_mode": "heat",
"sensor_source": "internal",
"alarm": "ok",
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"state":"TOGGLE"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"occupied_heating_setpoint":21.5}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"system_mode":"heat"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"control_preset":"moderate"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"sensor_source":"external"}'
Watch the topics live from the browser: MQTT client.
Home Assistant automation example
Zigbee2MQTT creates Home Assistant entities from the device name. If it is called my_device, an automation in automations.yaml can look like this:
- alias: "Cooler at night"
mode: single
triggers:
- trigger: time
at: "23:00:00"
actions:
- action: climate.set_temperature
target:
entity_id: climate.my_device
data:
temperature: 18
Check the YAML: YAML checker.
How to pair it
- In Zigbee2MQTT click Permit join.
- Put the device in pairing mode: usually a long press of the reset button (5–10 s) until the LED blinks; bulbs: switch the power off and on 5–6 times.
- Keep the device close to the coordinator or a router while pairing.
- Give it a clear name: MQTT topics and Home Assistant entities are built from it.
Exact procedure and model notes: the device page in the Zigbee2MQTT docs. No coordinator yet: coordinator picker.