What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Temperature | temperature | °C | read only |
| Humidity | humidity | % | read only |
| Humidity alarm | humidity_alarm | — | settable |
| Low battery | battery_low | — | read only |
| Temperature alarm | temperature_alarm | — | settable |
| Alarm | alarm | — | settable |
| Melody | melody | 1, 2, 3, 4, 5, 6, 7, 8 … | settable |
| Duration | duration | s · 0…1800 | settable |
| Temperature min | temperature_min | °C · -20…80 | settable |
| Temperature max | temperature_max | °C · -20…80 | settable |
| Humidity min | humidity_min | % · 1…100 | settable |
| Humidity max | humidity_max | % · 1…100 | settable |
| Volume | volume | low, medium, high | settable |
| Power type | power_type | battery_full, battery_high, battery_medium, battery_low, usb | 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,
"humidity_alarm": false,
"battery_low": false,
"temperature_alarm": false,
"alarm": false,
"melody": "1",
"duration": 900,
"temperature_min": 30,
"temperature_max": 30,
"humidity_min": 51,
"humidity_max": 51,
"volume": "low",
"power_type": "battery_full",
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"humidity_alarm":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"temperature_alarm":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"alarm":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"melody":"2"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"volume":"medium"}'
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.