Wireless protocol: For Zigbee 3.0 /2.4G Wifi. working frequencyFor zigbee :2.400GHz-2.484GHz. Temperature is accurate to ±0.3℃, and humidity is ±3%RH. Working humidity:10%-90%RH. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay