High precision: The sensor uses top suppliers. It can guarantee the high precision of the measurement data Real-time monitoring and recording: The sensor will report when the temperature and humidity change is very small. You can view the change of value on the APP or display. Record the change in temperature and humidity on the APP and show you graphs Backlight support: The sensor has a backlight, which allows you to view the screen clearly at night Angle adjustment: With bracket design, you can adjust the angle properly ℉&℃: The sensor is designed with Celsius and Fahrenheit temperature conversion. You can select the unit to be displayed as needed. The switching speed is related to the set data update frequency Wide Viewing Angle: We have carefully designed the viewing range of the LCD screen to be wider than other types of similar products Scene linkage: The sensor can be used as a temperature and humidity data source for Tuya Smart, Smart Life, Amazon Alexa, and Google Home. You can perform many automated processes based on the data source Temperature unit switch: The sensor is designed with Celsius and Fahrenheit temperature display switching functions. You can select the unit you need to display as needed Third-party voice support: The sensor supports Amazon Alexa and Google Home Assistant. you can check the current temperature and humidity by voice WiFi + Bluetooth dual mode: Faster connection to the network. Connect to the network 2 times faster than WiFi only Sharing function: Share with your family for common control Offline function: When the device is offline, APP will remind the device offline after 30 minutes Specifications: Connection method: WiFi+ Bluetooth Input voltage: DC4.5V LR03*3 (NO Included) Wireless Type: 2.4GHz IEEE 802.11b/g/n Temperature measure range: -10℃ ~ 55 ℃ Humidity measure Range: 10%-90%RH Quiescent current: ≤30uA Notes: Bluetooth is only used for network signal connection, you can't use Bluetooth alone. WIFI+Bluetooth is more stable If you need to realize the linkage function, such as with air conditioners, humidifiers, etc., you need to match the universal infrared remote control to realize this function, you can contact to buy.