Smart Temperature Measurement for Indoor and Outdoor Use

The sensor measures temperatures from -20°C to 60°C and humidity from 0% to 100% RH. The precision is ±0.5°C for temperature and ±3% for humidity, which is more than sufficient for most private and commercial needs. The display shows both current measurements and battery level, keeping you informed about the sensor's status. You can easily hang it up with the included string or place it on a shelf or in a cabinet.

The CR2477 button cell battery ensures a long battery life – up to two years under normal use. This makes the device particularly suitable for places where you do not want to change the battery often. The combination of low power consumption and high accuracy makes this sensor one of the most reliable solutions on the market.

Easy Setup and Wide Zigbee Compatibility

The SNZB-02WD connects to your smart home via Zigbee 3.0 and works with a wide range of gateways such as SONOFF ZBBridge, ZBBridge-U, NSPanel Pro, and Amazon Echo with Zigbee hub. You can also use it with open-source systems like Home Assistant, Zigbee2MQTT, and Jeedom, making it a flexible choice for both beginners and enthusiasts.

The setup is simple and takes place in four steps. You start by downloading the eWeLink app to your smartphone, scanning the QR code on the device, selecting “Add device,” and connecting it to your Zigbee hub. The entire process takes only a few minutes and requires no technical knowledge. Once the device is connected, you will be able to see live data directly in the app and set up automated scenarios based on the measured values.

The app gives you access to a history of temperature and humidity for up to 180 days. You can export data for analysis or use it to optimize the climate in, for example, your plant area or server room. Additionally, you can set up notifications that alert you if the temperature exceeds a certain limit or if the humidity becomes too high – something that can be critical in many contexts.

Practical Design with Versatile Applications

The sensor's casing is made from a strong combination of PC and ABS plastic, which protects against both shocks and moisture. With dimensions of 62.8 x 58.5 x 21.8 mm, it is compact enough for discreet placement while keeping the display easily readable. The white color allows the device to blend naturally into most environments, whether at home, in the office, or in a production area.

In the package, you get everything you need to get started: the sensor itself, a hanging string, a metal pin for reset, and a user-friendly guide. The sensor is ready to use straight out of the box with the included battery installed.

The applications are numerous. In greenhouses, you can use the sensor to monitor optimal growth conditions. In garages and basements, it helps prevent mold by monitoring humidity levels. At home, it can automate your heating and ventilation system to respond to actual indoor climate data. The possibilities are nearly endless, especially when you combine the sensor with other Zigbee devices and scenarios in your smart home.

SONOFF SNZB-02WD is the ideal solution if you want accurate, wireless monitoring of temperature and humidity – hassle-free and with plenty of integration options. Whether you are new to the smart home world or already have an advanced setup, this sensor will fit perfectly.