[High Reliability and Accuracy - Built-in Clock and Time Display]: Indoor Thermometer - Hygrometer with built-in high-end sensor, temperature and humidity measurement accurate to /- 1 degree Celsius and /- 5% RH. And it also has a clock function, with LCD display, time and date at a glance. A must-have 3-in-1 design for your smart home. [Dual Display Mode and Celsius/Fahrenheit Switching]: Wi-Fi Thermometer Hygrometer is equipped with a transparent LCD screen. You can check the current temperature and humidity on the LCD, or get current and historical data through Tuya App. Celsius/Fahrenheit toggle, just toggle the Fahrenheit/Celsius block to calibrate the value with your finger on the app. (Note: Only 2.4GHz Wi-Fi is supported) Work with Alexa - Support Voice Control and Smart Communication: Wi-Fi temperature sensor supports Alexa to query temperature and humidity. The thermometer can also communicate intelligently when the environment changes. For example, when the ambient temperature exceeds 30 degrees Celsius, the air conditioner will automatically turn on. Alternatively, the humidifier will spray water when the ambient humidity is below 20%. [Data storage, easy installation]: You can view the latest temperature and humidity records through the APP. The graph display gives you a clear understanding of how your data is changing. The Wifi Humidity Sensor Indoor/Outdoor Thermometer is easy to install, you can place it anywhere, on a table or hang it on the wall.