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SONOFF SNZB-02 #

Model SNZB-02
Vendor SONOFF
Description Temperature and humidity sensor
Exposes battery, temperature, humidity, voltage, linkquality
Picture SONOFF SNZB-02
White-label eWeLink RHK08

Notes #

Pairing #

Long press reset button for 5s until the LED indicator flashes three times, which means the device has entered pairing mode

Reporting intervals #

It has been reported, that the sensor reports humidity changes quite frequently (changes on 2nd digit level), but temperature changes are reported only once per hour or when temperature has changed > ~0.6°C. This results in a staircase development in recorded temperatures and inhibits fine-granular climate control. No resolution is known so far. See also Homeassistant Community Forums

Battery #

Uses a CR2450 battery

Device type specific configuration #

How to use device type specific configuration

Exposes #

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 %.

Temperature (numeric) #

Measured temperature value. Value can be found in the published state on the temperature property. It’s not possible to read (/get) or write (/set) this value. The unit of this value is °C.

Humidity (numeric) #

Measured relative humidity. Value can be found in the published state on the humidity property. It’s not possible to read (/get) or write (/set) this value. 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.