Digital Hygrometer Thermometer: LCD display, light source, easy to read and display temperature and humidity. High-precision Swiss Sensirion 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: 0.0 C ~ 60.0 C, humidity measurement range: 0-99% relative humidity. Baby Mode Reminder: The baby mode reminder is designed to be intimate and intelligent protection is activated. If the temperature or humidity exceeds the baby's comfort range, the Mijia app will automatically remind you and offer tips to provide intelligent protection for you and your family. With smart device: Can be used with the Bluetooth gateway (B082XCWH71) for Xiaomi. Mijia Thermometer and Hygrometer can be used with other smart home devices to improve indoor comfort and lead a smart and healthy life. 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 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 Size: about 43 x 43 x 12.5 mm. Color: white Delivery quantity: 3 pieces become very rich