1. Real-time temperature monitoring. 2. High/low temperature alarm with push notification and buzzer alert. 3. Built-in rechargeable battery: Device operates using a DC5V power adapter. Backup battery provides several hours of operation during power outage. 4. Switchable temperature unit (Celsius or Fahrenheit). Users can change between units via the app settings. 5. Temperature calibration available through app settings. 6. View temperature history records at any time; one record per hour, stores up to 7 days of data. 7. Supports multi-user access: Share device access with other users via the app. 8. Compatible with Tuya Smart or Smart Life apps. Plug Type: EU Plug, suitable for use in countries including Germany, France, Italy, and Indonesia. Color: As shown in picture Material: Plastic Package Contents: 1 x Wi-Fi Temperature Sensor 1 x 3-Meter Sensor Wire Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and screen display differences may cause slight color variations between the image and the actual product. Measurement error allowance is +/- 1-3 cm.