1. Real-time temperature monitoring. 2. High/low temperature alarm with push notification and buzzer alert. 3. Built-in rechargeable battery: Operates on DC 5V power adapter during normal use; backup battery provides several hours of operation during power outage. 4. Switchable temperature unit (Celsius or Fahrenheit) via app settings. 5. Temperature calibration available through app settings. 6. View temperature history records—1 record per hour, stored for up to 7 days. 7. Multi-user access supported: Share device with other users via the app. 8. Compatible apps: Tuya Smart or Smart Life. Color: As shown. Material: PC + metal. Plug type: EU plug—compatible with Indonesia, Germany, France, Spain, Italy, and other EU-standard countries. Voltage: AC 100–240 V. Slight variations in product appearance or printed text may occur between batches; these do not affect functionality. Package contents: 1 × Wi-Fi temperature sensor 1 × 1-meter wire Other accessories are not included. Note: Color discrepancies may occur due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.