SMART SCENE TO TRIGGER DEVICES OR ALERTS: Alexa thermometer indoor can perform intelligent linkage. You can set a smart scene to trigger alerts through events like high/low temperature, high/low humidity conditions and more.You can set a condition in the smart scene that is the fan is turn on/off when the temperature reaches the limit value, or the dehumidifier in your room starts working once the humidity is over higher. Make your home smarter.SMART SCENE TO TRIGGER DEVICES OR ALERTS: Alexa thermometer indoor can perform intelligent linkage. You can set a smart scene to trigger alerts through events like high/low temperature, high/low humidity conditions and more.You can set a condition in the smart scene that is the fan is turn on/off when the temperature reaches the limit value, or the dehumidifier in your room starts working once the humidity is over higher. Make your home smarter.VOICE CONTROL: Wifi temperature sensor compatible with Tuya smart, Smart life App, Alexa and Google Assistant. Room thermometer for home supports Alexa to ask for temperature and humidity, just say "Alexa, What's the humidity in here?"USB POWERED : Temperature and humidity monitor is supplied power by USB cable, NO need Batteries, save money.LARGE & INTELLIGENT BACKLIGHT NON-CONTACT LCD SCREEN: Upgraded Temperature and Humidity Meter features a 3 inch backlit LCD display, When the object pass by the infrared sensing button from distance 5CM, the screen will light up for about 10s. The large square screen allows your eyes to browse the entire screen in a circle trajectory, make the visual center more clear.