Hygrometer Digital Thermometer: Digital digital hygrometer thermometer has LCD display, bright light source, easier to read the displayed temperature and humidity. By smiling or sad expressions, you can directly understand the temperature and humidity around you.High Accuracy Temperature Moisture Meter: Wifi temperature and humidity meter equipped with high precision temperature and humidity sensor, updated once per second, providing more accurate and faster data. The temperature error can be 0.1 C and the humidity error can be 1%.Compatible With Other Smart Devices: (Note: Bluetooth gateway needs to be purchased separately.) Through the Bluetooth gateway and the mihome APP, the Bluetooth Thermometer 2 can be linked with other smart home devices to intelligently improve indoor heating, cooling and dryness, bringing smart and healthy life, making your home more comfortable .Temperature and Humidity Data Storage and Bb Mode: Open Mihome App, add a hygrometer thermometer Bluetooth device, you can see the temperature and humidity curve, and the data is stored in the app. Baby mode works with Mihome app. Baby mode can intelligently remind you and provide suggestions when the room temperature and humidity are not suitable for baby.