







SONOFF SNZB-02WD IP65 Zigbee LCD Smart Temperature Humidity Sensor
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【2.2″ LCD Screen Display】Easily monitor temperature and humidity in real time on the clear 2.2-inch LCD screen.
【Advanced Waterproof Design】Encased in IP65-rated housing with an internal waterproof breathable membrane, ensuring reliable operation even in humid or misty conditions.
【High Accuracy Measurements】Provides precise readings with ±0.2°C temperature accuracy and ±2% RH humidity accuracy for stable and trustworthy monitoring.
【IP65 Waterproof Rating】Ensures consistent performance in damp and splash-prone environments.
【Zigbee 3.0 Compatible】Supports Zigbee 3.0 hubs including SONOFF iHost, NSPanel Pro, ZBBridge-P, ZBBridge-U, ZBDongle-E, and ZBDongle-P.
Technical details, troubleshooting or setup tips? Access the SNZB-02WD knowledge center for all the info you need.



Reliable Quality, for Your Peace of Mind


Unique Waterproof Structural Design
Designed with a unique structure, the core sensor is protected by an IP65-rated housing. It detects external temperature and humidity through an internal waterproof, breathable membrane, ensuring reliable performance even in humid or misty environments.


Real-Time Temperature and Humidity Monitoring
Easily check real-time temperature and humidity on your phone to accurately monitor the conditions of any environment.




Smart Scenes to Enhance Everyday Life
Create smart scenes through the eWeLink app, receive notifications for abnormal, or set up automation based on temperature or humidity changes.




Voice Query Temperature
A simple voice command tells you if you need an extra layer before heading out.


Various Installation Methods

Magnetic back

Hanging rope
4 Steps to Use
Easily set up. Download the APP, scan the QR code to connect with the gateway and control!




Specs & User Manual
SONOFF SNZB-02WD is an IP65-rated Zigbee 3.0 temperature and humidity sensor with a 2.2″ LCD for real-time monitoring in indoor or humid environments. Its advanced waterproof housing and breathable membrane ensure stable performance in humid, misty, or outdoor settings, while Swiss-grade precision provides ±0.2°C and ±2% RH accuracy. Ideal for bedrooms, greenhouses, kitchens, and bathrooms. You can seamlessly integrate with SONOFF iHost, NSPanel Pro, ZBBridge-P/U, ZBDongle-E/P, and other Zigbee ecosystems to automate climate control and access historical data via the eWeLink app.
User Manual (PDF)SNZB-02WD
IP65
CR2477
PC+ABS
Zigbee 3.0
-20℃~60℃
0-100%RH
3V⎓
White
FAQ
1. The Zigbee signal is unstable and the device frequently goes offline?
If your device often goes offline, it could be due to the long distance between the device and the gateway (we recommend no more than 50 meters through walls), or obstacles/interference blocking the signal. Try adjusting the placement of your device and gateway, or use additional Zigbee router devices to strengthen your Zigbee network coverage.
2. Missing features after pairing with the eWeLink app?
Please ensure both your Zigbee gateway and the eWeLink app are updated to the latest version. If the device was added using an outdated gateway firmware, remove the device, update the Zigbee gateway, and then re-add the device.
3. Device not working properly in low-temperature environments?
In environments approaching extremely low temperatures (e.g., -20℃ / -4℉), the device may encounter:
① Greater deviation in temperature readings (up to ±0.7℃ / ±1.3℉)
② Significant battery capacity drop
③ Ghosting on the screen during refresh
These effects will improve as the ambient temperature rises. However, please note that due to battery characteristics, the battery capacity may not fully recover.