• 5-in-1 measurements: Temperature, humidity, atmospheric pressure, dew point, and VPD.
• Zigbee 3.0 protocol: Stable, low-power wireless connection.
• Long battery life: Up to 2 years of operation with one CR2477 battery.
• Flexible installation: Magnetic mounting or installation with a metal base and adhesive/screws.
• Compatibility: Works with eWeLink, Home Assistant, Zigbee2MQTT, and ZHA.

The SONOFF SNZB-02M accurately records the temperature, relative humidity, and atmospheric pressure of your space. In addition, it automatically calculates the dew point to prevent condensation and the VPD index (Vapor Pressure Deficit), providing ideal conditions for the growth of your plants and maintaining a healthy indoor environment.

Connect seamlessly to your smart home ecosystem. The sensor communicates via Zigbee 3.0, ensuring fast response and low power consumption. It integrates perfectly with the eWeLink app via a SONOFF gateway, as well as with platforms such as Home Assistant, Zigbee2MQTT, and ZHA for local automations without requiring an internet connection.

Thanks to its compact, screenless design and built-in magnetic back, you can attach it directly to metal surfaces or to the wall with the included metal mount. It is powered by a CR2477 battery that provides up to 2 years of continuous operation, so you can forget about frequent replacements.

• Manufacturer: SONOFF
• Model: SNZB-02M
• Wireless communication protocol: Zigbee 3.0 (IEEE 802.15.4, 2.4 GHz)
• Temperature accuracy: Up to ±0.2 °C
• Humidity accuracy: Up to ±2% RH
• Pressure accuracy: Up to ±0.1 hPa
• Power supply: 1 × CR2477 (3V)
• Battery life: Up to 2 years
• Mounting: Magnetic or with metal base (double-sided tape/screws)
• Use: Indoor use (maximum installation height 2 m)