WiFi THERMOMETER HYGROMETER: Wireless temperature sensor connects with 2.4 GHz WiFi(doesn't support 5G WiFi), Accurate measurement REAL-TIME UPDATE without delay, With stable WiFi and Bluetooth connection via the Tuya Smart/Smart life app, Easily monitor temp and humidity data in real time from anywhere. APP ALERT & INTELLIGENT LINKAGE FUNCTION: Room Thermometer Humidity Meter can perform intelligent linkage. set a smart scene to trigger alerts through events like high/low temperature, high/low humidity conditions, and receive an app alert immediately whenever levels fall out of that range. You can also preset the condition and task in the "Scene" page, for example, when the room temperature pass 30, the AC will turn on automatically. FREE DATA STORAGE & EXPORT: Our WiFi temperature sensor uploads data to the App. You can view the historic data of temperature and humidity stored for 1 year, and export the data seen through clear historical trends and graphs. / READING & INCLUDE BATTERY: You can switch the temperature unit between and via app, then press the rest button once. Wireless Thermometer Hygrometer is powered up by 3*AA battery(included), have long battery life. When the battery power is low, it will push alert message via app. provides a 24-months warranty of home temperature monitor.