Smart temperature and humidity sensor with Zigbee 3.0 and IP65 protection for reliable indoor and outdoor measurements. Clear 2.2" LCD display, accuracy up to ±0.2 °C and ±2% RH, battery life up to 2 years, and integration with eWeLink, Home Assistant, and other hubs.
Accurate measurements and a clear 2.2" LCD
Instant overview of temperature and humidity right on the display, switchable °C/°F, and clear battery and connection status icons.
IP65 durability and UV protection for outdoor use
Reliable operation from -20 °C to 60 °C and 0–100% RH. Ideal for conservatories, greenhouses, warehouses, and terrariums.
Smart scenes, history, and integrations
Up to 180 days of history in eWeLink, notifications on condition changes, and integration with Home Assistant or Zigbee 3.0 hubs.
Maintain the perfect climate at home, in a greenhouse, or in storage. The SONOFF SNZB-02WD accurately monitors temperature and humidity in real time, shows them on a large LCD, and communicates reliably with your smart home via Zigbee 3.0. IP65 rating and UV resistance make it a solid choice even for demanding outdoor use.
In the eWeLink app, you can easily view up to 180 days of history, set alerts for drops or rises in temperature, and create smart automations—like turning on a humidifier when humidity is low. Thanks to compatibility with platforms like Home Assistant and a range of hubs, integration is quick and flexible.
Why you’ll love it:
- Accurate measurements with fast response and a clear LCD.
- IP65 durability and UV protection for long-term outdoor use.
- Long battery life with a CR2477 cell lasting up to 24 months.
- Smart scenes and alerts in eWeLink, voice queries via assistants.
Specifications
- Manufacturer
- SONOFF
- Model
- SNZB-02WD
- Wireless connection
- Zigbee 3.0
- Display
- 2.2" LCD
- Measurement accuracy
- ±0.2 °C; ±2% RH
- Operating temperature
- -20 °C to 60 °C
- Operating humidity
- 0–100% RH
- Protection rating
- IP65, UV-resistant design
- Power
- 3 V
- Battery type
- CR2477 (up to 2 years of life)
- Material
- PC, ABS
- Color
- White
- App
- eWeLink (up to 180 days of history, notifications, scenes)
- Compatibility
- Zigbee 3.0 hubs, Home Assistant, SONOFF ZBDongle series
- Mounting options
- Magnet or hanging cord
