What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| On / off | state | — | settable |
| After power loss | power_on_behavior | off, on, toggle, previous | settable |
| Power | power | W | read only |
| Voltage | voltage | V | read only |
| Current | current | A | read only |
| Energy | energy | kWh | read only |
| Device temperature | device_temperature | °C | read only |
| Ntc1 temperature | ntc1_temperature | °C | read only |
| Ntc2 temperature | ntc2_temperature | °C | read only |
| Water sensor | water_sensor | — | read only |
| Ntc1 sensor type | ntc1_sensor_type | none, NTC-10K, NTC-12K, NTC-15K, NTC-22K, NTC-33K, NTC-47K | settable |
| Ntc2 sensor type | ntc2_sensor_type | none, NTC-10K, NTC-12K, NTC-15K, NTC-22K, NTC-33K, NTC-47K | settable |
| Water alarm relay action | water_alarm_relay_action | no_action, turn_off_restore, turn_on_restore, turn_off_stay, turn_on_stay, no_water_turn_off, no_water_turn_on | settable |
| Ntc1 operation mode | ntc1_operation_mode | no_action, off_when_hot_on_when_cold, on_when_hot_off_when_cold, off_when_hot_stay, on_when_hot_stay | settable |
| Ntc2 operation mode | ntc2_operation_mode | no_action, off_when_hot_on_when_cold, on_when_hot_off_when_cold, off_when_hot_stay, on_when_hot_stay | settable |
| Ntc1 relay auto temp | ntc1_relay_auto_temp | °C · 0…100 | settable |
| Ntc2 relay auto temp | ntc2_relay_auto_temp | °C · 0…100 | settable |
| Override option | override_option | no_priority, water_alarm_priority, ntc_priority | settable |
| Ntc1 calibration | ntc1_calibration | °C · -10…10 | settable |
| Ntc2 calibration | ntc2_calibration | °C · -10…10 | settable |
| Ntc1 temp hysteresis | ntc1_temp_hysteresis | °C · -10…10 | settable |
| Ntc2 temp hysteresis | ntc2_temp_hysteresis | °C · -10…10 | settable |
| Water condition alarm | water_condition_alarm | — | read only |
| Ntc condition alarm | ntc_condition_alarm | — | read only |
| Is execute condition | is_execute_condition | — | 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",
"power_on_behavior": "off",
"power": 12.4,
"voltage": 230,
"current": 0.06,
"energy": 3.21,
"device_temperature": 31,
"ntc1_temperature": 0,
"ntc2_temperature": 0,
"water_sensor": false,
"ntc1_sensor_type": "none",
"ntc2_sensor_type": "none",
"water_alarm_relay_action": "no_action",
"ntc1_operation_mode": "no_action",
"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 '{"power_on_behavior":"on"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"ntc1_sensor_type":"NTC-10K"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"ntc2_sensor_type":"NTC-10K"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"water_alarm_relay_action":"turn_off_restore"}'
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: "Turn off when idle"
mode: single
triggers:
- trigger: numeric_state
entity_id: sensor.my_device_power
below: 2
for: "00:15:00"
actions:
- action: switch.turn_off
target:
entity_id: switch.my_device
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.