High temperature alarm: When the set temperature is exceeded, the device sends a notification to your phone Voice control: Works with smart speakers to check indoor temperature and humidity using 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 WiFi 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 the wall with adhesive. Cable-free design for convenience and clean appearance Temperature measurement range: -10C to 60C Humidity measurement accuracy: 5% RH Temperature measurement accuracy: 0.5C Humidity measurement range: 0% RH to 99% RH App: Available for iOS and Android 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: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm