Digital Hygrometer Thermometer: LCD display, light source, easy to read and display temperature and humidity. High-precision digital sensors First used in hygrometers and thermometers and can measure fine changes. Temperature difference +0.3 degrees Celsius; humidity difference + 3%; Temperature measurement range: 0.0C~60.0C, humidity measurement range: 0-99% relative humidity. Baby mode reminder: The reminder baby mode is designed to be intimate and intelligent protection is activated. If the temperature or humidity exceeds the babys comfort range, the Mijia app will automatically remind you and offer guidance to provide smart protection for you and your family With Smart Device: Can be used with Bluetooth Gateway (B082XCWH71) for Xiaomi. Mijia 2 thermometer and hygrometer can be used together with other smart home devices to improve indoor comfort and lead to smart and healthy living. Note: In the Mijia app, search for thermometers and hygrometers for Mijia 2 and add them to access the link. Temperature and humidity data storage Open Mijia App, add the Mijia Bluetooth Thermometer 2 device, you can view the temperature and humidity curve in real time, the data is saved in the body of a thermometer and in the cloud.