To contribute to this page, edit the following file

Stelpro SMT402 #

Model SMT402
Vendor Stelpro
Description Maestro, line-voltage thermostat
Exposes local_temperature, keypad_lockout, climate (occupied_heating_setpoint, local_temperature, system_mode, running_state), linkquality
Picture Stelpro SMT402

Notes #

Device type specific configuration #

How to use device type specific configuration

Setting outdoor temperature #

To set outdoor temperature, you need to send the value to the following MQTT topic:

zigbee2mqtt/<FRIENDLY_NAME>/set/thermostat_outdoor_temperature

If you want to automate the publishing of the outdoor temperature using Home Assistant, you may create an automation like this:

- id: auto_publish_outdoor_temp
  description: publish the outdoor temperature to Stelpro thermostat
  trigger:
    - platform: state
      entity_id: sensor.outdoor_sensor_temperature
      condition: []
  action:
    - service: mqtt.publish
      data_template:
      payload: ''
      topic: 'zigbee2mqtt/THERMOSTAT_FRIENDLY_NAME/set/thermostat_outdoor_temperature'

IMPORTANT: The outdoor temperature need to be refreshed at least each 4 hours, or the EXT display will be cleared on the thermostat.

Exposes #

Local_temperature (numeric) #

Current temperature measured on the device. Value can be found in the published state on the local_temperature property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"local_temperature": ""}. It’s not possible to write (/set) this value. The unit of this value is °C.

Keypad_lockout (enum) #

Enables/disables physical input on the device. Value can be found in the published state on the keypad_lockout property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"keypad_lockout": ""}. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"keypad_lockout": NEW_VALUE}. The possible values are: unlock, lock1, lock2.

Climate #

This climate device supports the following features: occupied_heating_setpoint, local_temperature, system_mode, running_state.

Linkquality (numeric) #

Link quality (signal strength). Value can be found in the published state on the linkquality property. It’s not possible to read (/get) or write (/set) this value. The minimal value is 0 and the maximum value is 255. The unit of this value is lqi.