1. Power supply: CR2450(3V) button cell battery is included
2. Wireless connection: Zigbee 3.0
3. Operating temperature: -9.9 - 60 degrees Celsius
4. Operating humidity: 5-95%RH (non-condensing)
5. Housing material: PC
6. Size: about 62.5 x 59.5 x 18.5mm
7. Description: only the sensor, does not include other items in the picture

Features:
1. Built-in high-precision sensor
2. Large and clear display, easy to read
3. 5s fast refresh, Celsius / Fahrenheit units can be switched
4. Up to half a year of cloud storage, you can query any time temperature and humidity data and support export files
5. When the temperature or humidity exceeds your set comfort level, your cell phone will receive timely alarm notification
6. Supports zigbee gateway using Zigbee3.0 protocol, compatible with most gateways
7. Coverage up to 120m/400ft (ideal for unobstructed conditions), view data at any time