1. Real-time temperature monitoring. 2. High/low temperature alarm with push notification and buzzer alert. 3. Built-in rechargeable battery: Operates on DC5V power adapter during normal use; backup battery provides several hours of operation during power outage. 4. Temperature unit switchable between Celsius and Fahrenheit via app settings. 5. Temperature calibration available through app settings. 6. View temperature history records; one reading 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, suitable for use in Indonesia, Germany, France, Spain, Italy, and other EU-compatible regions. Voltage: AC 100–240 V. Slight variations in product appearance and printed text may occur between batches; these do not affect functionality. Package contents: 1 × Wi-Fi temperature sensor 1 × 1-meter wire Note: Color appearance may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.