1. [ZigBee Mode]: Please note that it needs to be used with a ZigBee gateway! ! ! 2. [High temperature and low temperature alarm]: Once the set temperature value is exceeded, the mobile phone will prompt an alarm 3. [High humidity and low humidity alarm]: Once the set humidity value is exceeded, the mobile phone will prompt an alarm 4. [Real-time monitoring]: Battery powered AAA1.5V x 2 (battery not included), low power consumption, according to the system default settings, it can be used for about 1 year. The default data update frequency is 60 minutes, or temperature 0.6 (adjustable by APP), humidity 6percent (adjustable by APP). The update frequency can be as needed. The smaller the value, the shorter the actual battery usage time will be. 5. [Temperature and Humidity Curve]: Record temperature and humidity changes on the APP and present them to you graphically. More intuitively letting you know recent data changes [Multiple installation methods]: It can be placed directly on the table or pasted . There is no data cable, which is more convenient and beautiful. [Temperature unit switch]: The sensor is designed with Celsius and Fahrenheit temperature conversion functions. You can select the units to be displayed as needed. The speed of switching is related to the set data update frequency. You can first select the update frequency for one minute, then switch the temperature to the new unit after one minute, and then switch the data update frequency to the time you need. The appearance and color of different batches of products may be different, which will not affect the use. Colour:White Material:Plastic Package Contents: 1 x Sensor Only the above package content, other products are not included. 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.