Features: Voltage display function: always detect the voltage of the car battery, avoid the loss of battery power, can not start the vehicle. Date/time :12/24 hours switchable display. Dual temperature function: indoor and outdoor temperature can also be displayed. The backlight is available in blue/green: The LED backlight design allows you to accurately read numbers in the dark. Easy to install and use, the perfect accessory for your car. Versatile: This automotive thermometer clock has multiple functions, including indoor and outdoor temperature, time, date, alarm clock, outdoor frosts alarm. Can be adjusted as needed. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material:PS Package List: 1*3 in 1 Car Clock Thermometer