• High measurement accuracy: precise temperature at ±0.3 ℃ and humidity at ±3% RH, with data updated every 2 seconds. • Real-time monitoring: 2.4 GHz WiFi or Bluetooth connection via the Govee Home app to control temperature and humidity from anywhere. • Smart alerts: receive instant notifications on your smartphone if temperature or humidity values go outside the set range. • Data storage and export: stores up to 20 days of online data and allows you to export up to 2 years of records, displaying detailed trends and historical graphs. • Easy installation: thanks to the included strap, you can easily place the device in different areas of your home, refrigerator, wine cellar, or greenhouse. • Package contents: 1 Govee thermo-hygrometer, 1 lanyard, 1 user manual, and 3 installed AA batteries.