Date/Time/Week/Second Display: Switch between 12-hour and 24-hour display. Temperature measurement range: -10℃ - 70℃. The product measures the temperature around where it is placed. If it is placed in a car, please do not compare it with the temperature outside the car. Car battery voltmeter display. Alarm clock: Snooze function with 5 minute interval; Switch the temperature display between Celsius and Fahrenheit Two backlight colors to choose from when the clock is powered by car cigarette lighter socket, and there would be no backlight when powered by batteries. rescue. Specifications: Product color: black + blue frame Backlight color: orange + green (green box), orange + blue (blue box) (random) Voltage: DC 12-24 V Temperature measurement range: -10℃ —70℃ Basic adjustment angle: 180° Product size: 9.2 * 5.5 * 2.8 cm / 3.6 * 2, 2 * 1.1 inch Base diameter: about 4.5 cm / 1.77 inch Power cord length: 146 cm / 57.4 inch Outdoor sensor cable length: 200 cm / 78.7 in Package size: 9.5 *