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