Features:Wifi+BT Dual Mode Design: Connect to the network faster. Connect to the network 2 times faster than Wi-Fi only.High Accuracy: Premium quality sensors ensure high accuracy of measurement data, high sensitivity, help accurate monitoring indoor temperature and humidity, creating a comfortable living environment no matter the weather is hot in summer or cold in winter.LCD Backlight Display with Wide Viewing Angle: It is equipped with a backlit LCD display, which allows you to view the temperature, humidity and time clearly on the screen even at night. We have carefully designed the viewing area of the LCD screen to provide a wider viewing angle than other types of similar products.APP Real-time Monitoring and Recording: The sensor will report when the temperature and humidity change very little. You can view the changes on the APP or on the display. The temperature and humidity changes are recorded on the APP and shown to you in graphs.H Switchable: The sensor is designed with Celsius and Fahrenheit temperature conversion function. You can select the units to be displayed as required. The switching speed is related to the data update frequency of the setting.Scene Linkage: The sensor can be used as temperature and humidity data source, you can perform a lot of automated processes based on the data source. Intelligent scene link, support custom scene settings, you can preset the alarm values for temperature and humidity in the APP, which will push alarm when the tested value is reach the alarm value.Third-party Voice Support: Support for voice commands to inquire about the indoor temperature and humidity in your home through third-party intelligent speakers that are compatible with Alexa and Google Home for voice control.Sharing Function: You can share with your family for joint control.Offline Function: The app will remind you after 30 minutes if your device is offline.Angle Adjustment: There is a stand on the back of the instrument for angle adjustment. Multiple scenes placed at will, it can be placed in the bedside table, desk, office.Wide Applications: Suitable for bedrooms, dressing rooms, fruit stores, greenhouses, hatcheries, laboratories, machine rooms, warehouses, cellars, etc.Note: BT is only used for network signal connection, you cannot use BT alone. WIFI+BT is more stable.