Wi-Fi REMOTE MONITORING & SMART ALERTS: Connecting with 2.4GHz WiFi(No 5G support), Whether you are or away, you will always know the temperature and humidity from the indoor thermometer. Alert will be sent to your phone when beyond preset value. The easy to use Tuya Smart/Smart Life App contains a dynamic temperature and humidity graph, Support data storage and export REAL-TIME UPDATE & ALWAYS ACCURATE: Real-time data update with delay, Indoor thermometer is accurate to 0.1 and 5%RH humidity accuracy. The Temperature and humidity monitor powered by USB cable, NO need Batteries, save money, please plugged in with USB cable all the time VOICE CONTROL: Wireless temperature sensor wifi compatible with Alexa and Assistant. This temp sensor can be hooked into and 's ecosystem for audible temperatures or humiditys. SMART HOME AUTOMATION: Wifi Temperature Humidity Sensor can be used as the temperature and humidity data source of Tuya Smart, Smart Life. You can set a condition in the smart scene,Such as the AC is turn on when the temperature reaches the limit value, or the dehumidifier starts working once the humidity is over higher LARGE LED BACKLIGHT SCREEN & / SWITCHABLE: Room thermometer for home with a 3.2 inch backlit LED display, Clear reading even in the dark, the backlight can be turned off via the app. Digital temperature gauge supports / reading. Colour:White Material:plastic Size:9.50 x 8.79 x 2.39 cm Package Contents: 1 x Thermometer Hygrometer Sensor 1 x USB cable 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.