①. High temperature and temperature alarm: Once set temperature is exceeded, the phone prompts an alarm ②. Voice control: Works with Smart Support inquiring the indoor temperature and humidity via voice commands through speaker. ③. Temperature Unit Switch: You can switch temperature unit between Celsius and Fahrenheit in the settings, then press the reset button once to switch the temperature unit. ④. Intelligent linkage: The WiFi temperature and humidity sensor can be linked with smart devices to improve indoor heating and cooling, and make your home more comfortable. ⑤. Installation methods: Can be placed directly on the table or glued to the wall. Without a data cable, it's more convenient and beautiful. ⑥. Temperature measurement range: -10-60 (℃) ⑦. Humidity measurement accuracy: ± 5% (RH) ⑧. Temperature measurement accuracy: ± 0.5 (℃) ⑨. Humidity measurement range: 0% RH-99% (RH) ⑩. APP: ⑪. Colour: White ⑫. Material: Plastic ⑬. Size: 8x3.65x2.55cm ⑭. Package Contents: 1 * Temperature And Humidity Sensor, 1 * English instruction manual. Only the above package content, other products are not included. ⑮. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3cm.