What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Thermostat mode | thermostat_mode | — | settable |
| Climate | system_mode, fan_mode, occupied_heating_setpoint, local_temperature | mode, fan_mode, heating setpoint, room temperature | settable |
| PMTSD from W100 Data | PMTSD_from_W100_Data | — | read only |
| Battery | battery | % · 0…100 | read only |
| Temperature | temperature | °C | read only |
| Humidity | humidity | % | read only |
| Sensor | sensor | internal, external | settable |
| External temperature | external_temperature | °C · -100…100 | settable |
| External humidity | external_humidity | % · 0…100 | settable |
| Auto hide middle line | auto_hide_middle_line | — | settable |
| High temperature | high_temperature | °C · 26…60 | settable |
| Low temperature | low_temperature | °C · -20…20 | settable |
| High humidity | high_humidity | % · 65…100 | settable |
| Low humidity | low_humidity | % · 0…30 | settable |
| Sampling | sampling | low, standard, high, custom | settable |
| Period | period | sec · 0.5…600 | settable |
| Temp report mode | temp_report_mode | no, threshold, period, threshold_period | settable |
| Temp period | temp_period | sec · 1…600 | settable |
| Temp threshold | temp_threshold | °C · 0.2…3 | settable |
| Humi report mode | humi_report_mode | no, threshold, period, threshold_period | settable |
| Humi period | humi_period | sec · 1…600 | settable |
| Humi threshold | humi_threshold | % · 2…10 | settable |
| Identify | identify | identify | settable |
| Action (button press) | action | W100_PMTSD_request, hold_plus, hold_center, hold_minus, single_plus, single_center, single_minus, double_plus … | 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:
{
"thermostat_mode": false,
"occupied_heating_setpoint": 21,
"local_temperature": 20.5,
"system_mode": "heat",
"battery": 87,
"temperature": 21.6,
"humidity": 46.2,
"sensor": "internal",
"external_temperature": 0,
"external_humidity": 50,
"auto_hide_middle_line": false,
"high_temperature": 43,
"low_temperature": 0,
"high_humidity": 83,
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
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 '{"thermostat_mode":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"sensor":"external"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"auto_hide_middle_line":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: "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.