Wireless Temperature And Humidity Sensor Detector Smart Home 1. Operating temperature: -10 - 60 degrees Celsius 2. Wireless connection: Zigbee 3.0 3. Power supply: CR2477 battery included 4. Material: PC 5. Packing list: sensor x 1, double-sided tape x 1, screws x 1, metal plate x 1, manual x 1 6. Size: about 4.5 x 4.5 x 1.77cm 7. Weight: about 25g 8. Description: only the sensor, does not include other items in the picture Features: 1. High-precision monitoring, with higher precision detection ability, can accurately monitor the environment temperature and humidity 2. Real-time query data, temperature and humidity changes, the most 5 seconds to refresh the data 3. Support cloud history, daily temperature and humidity data will be saved in APP. you can query the temperature and humidity changes every day, every month, every six months at any time, you can also download the data, according to the temperature and humidity trends to improve the living environment 4. When the temperature or humidity exceeds the set comfort range, a notification will be sent to your phone 5. Set up smart scenes to control the fan and humidifier at night according to different temperature or humidity 6. With Zigbee3.0 capability, compatible with a variety of gateways