Wireless ZigBee temperature and humidity sensor Sonoff SNZB-02WD

Wireless ZigBee temperature and humidity sensor Sonoff SNZB-02WD 

Technical information:

IP: IP65
Battery: CR2477
Wireless: Zigbee 3.0
Casing materials: PC+ABS
Working Temperature: -20ºC~ 60ºC
Working humidity: 0~100%RH
Color: White
Product Size: 62,8x58,5x21,8 mm

Main functions:

1. Temperature measurement:

   • Range: from -20 °C to +60 °C

   • Accuracy: ±0.2 °C

2. Humidity measurement:

   • Range: 0-100% RH

   • Accuracy: ±2% RH

3. Zigbee 3.0 protocol:

   • Compatible with SONOFF Zigbee Bridge, eWeLink, Home Assistant, Zigbee2MQTT, etc.

   • Stable connectivity and low power consumption.

4. Real-time updates:

   • Automatic transmission of data when temperature or humidity changes.

   • Frequency of updates depends on the rate of change.

5. Battery:

   • Uses a CR2477 battery.

6. Compact and modern design:

   • Aesthetically appealing, easy to mount on walls or surfaces.

7. Protection against condensation and excessive humidity:

   • Suitable for use in rooms with high humidity (e.g. bathrooms or kitchens).

Uses:

1. Home climate control:

   • Monitor room temperature and humidity to improve living comfort.

   • Automate ventilation or heating (e.g. via Sonoff relay or other devices).

2. Automation scenarios:

   • For example, if humidity > 70%, switch on the fan; if temperature < 18 °C, switch on the heater.

3. Children's rooms, bedrooms, senior care:

   • Maintain optimal living conditions.

4. Offices and workplaces:

   • Provide a comfortable environment for employees.

5. Shelves, archives:

   • Protect documents or goods from excessive moisture or heat.

6. Bathrooms and kitchens:

   • Use humidity monitoring to reduce the risk of mould.

7. Greenhouses:

   • Automatic ventilation or irrigation based on real data.