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SONOFF SNZB-04 #
Model | SNZB-04 |
Vendor | SONOFF |
Description | Contact sensor |
Exposes | contact, battery_low, battery, voltage, linkquality |
Picture | ![]() |
White-label | eWeLink RHK06 |
Notes #
Pairing #
Long press reset button for 5s until the LED indicator flashes three times, which means the device has entered pairing mode
Exposes #
Contact (binary) #
Indicates if the contact is closed (= true) or open (= false).
Value can be found in the published state on the contact
property.
It’s not possible to read (/get
) or write (/set
) this value.
If value equals false
contact is ON, if true
OFF.
Battery_low (binary) #
Indicates if the battery of this device is almost empty.
Value can be found in the published state on the battery_low
property.
It’s not possible to read (/get
) or write (/set
) this value.
If value equals true
battery_low is ON, if false
OFF.
Battery (numeric) #
Remaining battery in %.
Value can be found in the published state on the battery
property.
It’s not possible to read (/get
) or write (/set
) this value.
The minimal value is 0
and the maximum value is 100
.
The unit of this value is %
.
Voltage (numeric) #
Voltage of the battery in millivolts.
Value can be found in the published state on the voltage
property.
It’s not possible to read (/get
) or write (/set
) this value.
The unit of this value is mV
.
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
.
Manual Home Assistant configuration #
Although Home Assistant integration through MQTT discovery is preferred, manual integration is possible with the following configuration:
binary_sensor:
- platform: "mqtt"
state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
availability_topic: "zigbee2mqtt/bridge/state"
value_template: "{{ value_json.contact }}"
payload_on: false
payload_off: true
device_class: "door"
binary_sensor:
- platform: "mqtt"
state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
availability_topic: "zigbee2mqtt/bridge/state"
value_template: "{{ value_json.battery_low }}"
payload_on: true
payload_off: false
device_class: "battery"
sensor:
- platform: "mqtt"
state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
availability_topic: "zigbee2mqtt/bridge/state"
value_template: "{{ value_json.battery }}"
unit_of_measurement: "%"
device_class: "battery"
sensor:
- platform: "mqtt"
state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
availability_topic: "zigbee2mqtt/bridge/state"
value_template: "{{ value_json.voltage }}"
unit_of_measurement: "mV"
device_class: "voltage"
sensor:
- platform: "mqtt"
state_topic: "zigbee2mqtt/<FRIENDLY_NAME>"
availability_topic: "zigbee2mqtt/bridge/state"
value_template: "{{ value_json.linkquality }}"
unit_of_measurement: "lqi"
icon: "mdi:signal"