High temperature alarm: When the set temperature is exceeded, the device sends a notification alert Voice control: Compatible with smart speakers to check indoor temperature and humidity via voice commands Temperature unit switch: Switch between Celsius and Fahrenheit in the settings; press the reset button once to confirm the change Intelligent linkage: The Wi-Fi temperature and humidity sensor can be connected with other smart devices to optimize indoor heating and cooling for improved comfort Installation methods: Can be placed on a flat surface or mounted on a wall with adhesive; cable-free design for convenience and clean appearance Temperature measurement range: -10°C to 60°C Humidity measurement accuracy: ±5% RH Temperature measurement accuracy: ±0.5°C Humidity measurement range: 0% RH to 99% RH App control supported Color: White Material: Plastic Size: 8 x 3.65 x 2.55 cm Package Contents: 1 x Temperature and Humidity Sensor 1 x English instruction manual Note: The package includes only the items listed above. Light reflection and screen differences may cause slight color variations. Measurement error allowed: ±1–3 cm