What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Temperature | temperature | °C | read only |
| Humidity | humidity | % | read only |
| Enable display | enable_display | — | settable |
| Temperature display mode | temperature_display_mode | celsius, fahrenheit | settable |
| Comfort smiley | comfort_smiley | — | settable |
| Comfort temperature min | comfort_temperature_min | °C · -50…120 | settable |
| Comfort temperature max | comfort_temperature_max | °C · -50…120 | settable |
| Comfort humidity min | comfort_humidity_min | % · 0…100 | settable |
| Comfort humidity max | comfort_humidity_max | % · 0…100 | settable |
| Temperature calibration | temperature_calibration | °C · -50…50 | settable |
| Humidity calibration | humidity_calibration | % · -50…50 | settable |
| Measurement interval | measurement_interval | s · 3…255 | settable |
| Battery | battery | % · 0…100 | read only |
| Voltage | voltage | mV | 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:
{
"temperature": 21.6,
"humidity": 46.2,
"enable_display": false,
"temperature_display_mode": "celsius",
"comfort_smiley": false,
"comfort_temperature_min": 35,
"comfort_temperature_max": 35,
"comfort_humidity_min": 50,
"comfort_humidity_max": 50,
"temperature_calibration": 0,
"humidity_calibration": 0,
"measurement_interval": 129,
"battery": 87,
"voltage": 2950,
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"enable_display":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"temperature_display_mode":"fahrenheit"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"comfort_smiley":true}'
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: "Room too warm"
mode: single
triggers:
- trigger: numeric_state
entity_id: sensor.my_device_temperature
above: 26
for: "00:10:00"
actions:
- action: notify.notify
data:
message: "Temperature above 26 °C"
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.