Sonoff · SNZB-02B

Sonoff Temperature and Humidity Lite (Zigbee)

Keep an eye on temperature and humidity in any room, cupboard, wine rack, or storage space with this compact Zigbee sensor. It pairs with the eWeLink app for real-time monitoring and up to 6 months of data history.

On order — about 5 working days

Product Name: AirGuard TH Lite
Product Series: AirGuard Series
Product Type: Zigbee Temperature & Humidity Sensor
Model: SNZB-02B
Wireless Connection: Zigbee 3.0 (IEEE 802.15.4)
Temperature Accuracy: ±0.2°C / ±0.4°F
Humidity Accuracy: ±2% RH
Data Refresh Rate: Every 5 seconds
Data History: Up to 6 months (via app)
Power Input: 3.0V (2 x 1.5V batteries)
Battery Model: 2 x AAA (LR03)
Battery Life: Up to 2 years
Net Weight: 43.0g (including batteries)
Dimensions: 66.3 x 27.8 x 20mm
Colour: White
Casing Material: PC (polycarbonate)
Mounting Options: Hang with lanyard, 3M adhesive, or freestanding
Application Environment: Indoor use only
Operating Temperature: -20°C ~ 60°C
Operating Humidity: 5-95% RH (non-condensing)
Installation Height: Max 2m recommended
Certification: CE / FCC / RoHS
App Compatibility: eWeLink App
Gateway Requirement: Requires Zigbee 3.0 gateway (sold separately)

More information

The Sonoff AirGuard TH Lite is a compact, screen-free Zigbee sensor built to keep your home, storage spaces, and valuables protected from unwanted moisture and temperature swings. With ±0.2°C accuracy and ±2%RH humidity precision, it delivers dependable readings that update every 5 seconds, so you always know exactly what’s happening in the space you’re monitoring. Running on two standard AAA batteries, the Sonoff Temperature and Humidity Lite (Zigbee). Pair it with a compatible Zigbee gateway and the eWeLink app to unlock live alerts, smart automations, and up to 6 months of historical data perfect for tracking long-term trends in your home or storage environments easy to install in any place.