Indoor Digital Hygrometer Thermometer, Humidity Monitor with Temperature Gauge Humidity Meter, Big LCD Screen Multifunctional Hygrometer for Kids Home, Car, Office, Etc. (Mini) Multiple Functions - Work as hygrometer, thermometer. It can record the current indoor temperature, humidity. Provide a comfortable and healthy living condition for your family. Highest & Lowest Records - The The hygrometer thermometer can record the highest and lowest temperature and humidity in the past. Foucus on climate change and your family's health. Mini & Simple Design - Mini digital thermometer and hygrometer, convenient for you to set such a life partner on your night stand. Wireless black stylish design, perfect to be used as car temperature monitor too. Easy Operate - There are 3 buttons. You can press C/F to switch from C to F. Button MAX/MIN is design for you to check the record of High & Low temperatures & relative humidity. You can also easily reset the MAX/MIN record by pressing the CLEAR button. Easy to operate and no more confusion. Battery Operated - Powered by 1 x 1.5V model LR1130 button battery. Please Replace the battery when the display dims. The display of switchableC/F. LCD display makes it really easy to read. The function of memorizing the highest or minimum temperature and humidity.