What it exposes
| Feature | Property | Values | Control |
|---|---|---|---|
| Radioactive events per minute | radioactive_events_per_minute | rpm | read only |
| Radiation dose per hour | radiation_dose_per_hour | μR/h | read only |
| Led feedback | led_feedback | — | settable |
| Buzzer feedback | buzzer_feedback | — | settable |
| Alert threshold | alert_threshold | μR/h · 0…10000 | settable |
| Sensors type | sensors_type | СБМ-20/СТС-5/BOI-33, СБМ-19/СТС-6, Others | settable |
| Sensors count | sensors_count | 0…50 | settable |
| Sensitivity | sensitivity | 0…100 | settable |
| Action (button press) | action | on, off | 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:
{
"radioactive_events_per_minute": 0,
"radiation_dose_per_hour": 0,
"led_feedback": false,
"buzzer_feedback": false,
"alert_threshold": 5000,
"sensors_type": "СБМ-20/СТС-5/BOI-33",
"sensors_count": 25,
"sensitivity": 50,
"linkquality": 120
}
Send commands to zigbee2mqtt/my_device/set:
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"led_feedback":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"buzzer_feedback":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"sensors_type":"СБМ-19/СТС-6"}'
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: "Button"
mode: single
triggers:
- trigger: mqtt
topic: zigbee2mqtt/my_device
value_template: "{{ value_json.action }}"
payload: "on"
actions:
- action: light.toggle
target:
entity_id: light.living_room
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.