INTELLIGENT BACKLIGHT NON-CONTACT LARGE LCD SCREEN: Smart Temperature sensor Humidity Meter with 3-inch-LCD display features backlight, When the object pass by the infrared sensing button from distance 2inch, the screen will light up for about 10s. Clear reading even at night. offers a 24 month warranty on the home temperature monitorSMART SCENE TO TRIGGER ALERTS OR DEVICES: Set a smart scene to trigger alerts through events like high/low temperature, high/low humidity conditions. Alert will be sent to the App when beyond preset value. You can also set set a condition in the smart scene, for example, automatically turn on the air conditioner when the temperature reaches 28. Digital temperature gauge make your home smarterREAL TIME UPDATE & ACCURATE: Room Thermometer, Real-time data update without delay, Temperature is accurate to 1, and humidity is 5%RH. The Humidity Gauge Temperature Humidity Monitor is powered by USB cable, NO Battery, just plugged in with USB cable all the timeSMART WIFI CONTROL: Connects wifi the temperature sensor with 2.4 GHz WiFi(NOT support 5G). Easily monitor temp and humidity data in real time from anywhere via the "Tuya Smart" or "Smart Life" app. Support / reading and the App contains a dynamic temperature and humidity graph, you can get current and historic data via the appCOMPATIBLE WITH ALEXA AND GOOGLE HOME: Tuya temperature sensor compatible with Tuya/Smart life App/Alexa/Google Assistant. Indoor thermometer supports Alexa/Google to ask for temperature and humidity by voice, "Alexa, What's the humidity in the baby room?"