[Wifi + Bluetooth Dual Mode]: Connect to faster. Connecting to is 2 times faster than only Wifi [High Temperature Low Temperature Alarm]: Once the value of the set temperature is exceeded, the cell phone will prompt the alarm. [Real-time monitoring]: Battery powered AAA1.5Vx2 (batteries not included), low power consumption, according to the system default settings, can be used for about 1 year.Data update frequency 1-120 minutes, you can choose the update frequency as needed. The smaller the value, the shorter the actual battery usage time will be. [Temperature and humidity graph]: Record the temperature and humidity changes on the APP, and present it to you with a graph. More intuitive to let you know the recent data changes [Multiple Installation]: You can directly place it on the table or . There is no data cable, so it is more convenient and beautiful. [Scene Linkage]: The sensor can be used as a temperature and humidity data source for Doodle Smart, Smart Life, , Google Home. You can perform many automated processes based on the data source. Note that to realize this function, you need to use it with a universal infrared remote control or WIFI pass-through, you can contact customer service to buy it [Temperature Unit Switch}: The sensor is designed with Celsius and Fahrenheit temperature conversion function. You can choose the unit you want to display according to your needs. Switching fast or slow and set the data update frequency has a relationship, you can first select the update frequency of one minute, one minute after the temperature switch to the new unit, and then switch the data update frequency to your desired time [Third party voice support]: The sensor supports FOR , Google Home Assistant.You can hear the current temperature and humidity by voice. Powersupply: AAA1.5Vx2 (battery not included) Wi-Fi support: 2.4G IEEE 802.11 b/g Temperature measurement range: -10~55 Temperature accuracy: 0.3 Humidity measurement range: 10%~99%RH Humidity accuracy: 3% RH Material: ABS colour: white Package Contents: 1 x Temperature and humidity sensors 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.