What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Identify | identify | identify | settable |
| Temperature | temperature | °C | read only |
| Battery | battery | % · 0…100 | read only |
| Voltage | voltage | mV | read only |
| Low battery | battery_low | — | read only |
| Reading interval | reading_interval | sec · 10…360 | settable |
| Tx radio power | tx_radio_power | 4dbm, 19dbm | settable |
| Smart sleep | smart_sleep | — | settable |
| Uptime | uptime | Hours | read only |
| Resolution | resolution | 9 bit, 10 bit, 11 bit, 12 bit | settable |
| Config report enable | config_report_enable | — | settable |
| Comparison previous data | comparison_previous_data | — | settable |
| Enabling temperature control | enabling_temperature_control | — | settable |
| Temperature actions | temperature_actions | HEAT, COOL | settable |
| High temperature | high_temperature | °C · -50…120 | settable |
| Low temperature | low_temperature | °C · -50…120 | settable |
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,
"battery": 87,
"voltage": 2950,
"battery_low": false,
"reading_interval": 185,
"tx_radio_power": "4dbm",
"smart_sleep": false,
"uptime": 0,
"resolution": "9 bit",
"config_report_enable": false,
"comparison_previous_data": false,
"enabling_temperature_control": false,
"temperature_actions": "HEAT",
"high_temperature": 35,
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"tx_radio_power":"19dbm"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"smart_sleep":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"resolution":"10 bit"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"config_report_enable":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"comparison_previous_data":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.