Practical LCD Car Clock Time Thermometer Digital Automotive Clock Backlight 100% Brand New and High quality Has a blue back light switch so you can easily check the temperature at night and reads in Celsius. Functions display: clock 12/24 hrs format; optional with year display; and temperature display in celcius Add some functional style to your car or desk with this barrel-shaped digital thermometer which will look great whether it's sitting on your dashboard or on top of your PC's monitor. Powered by 2 x AG3 button cell batteries(included).