Car Inside And Outside Dual Temperature+Clock+Voltage LED Electronic Display 1. 3 in 1 multi-function, LED display, clock + temperature + voltage 2. When the temperature is lower than -1 degrees Celsius, the icing alarm pattern lights up 3. Real-time monitoring of battery voltage in the car, with digital alarm pattern 4. Time display function: yearmonthday display when pressing the button 5. 1224 hours display format 6. Blue and orange backlight color conversion 7. Temperature measurement range: -50 - 70 degrees Celsius 8. Power supply: 2 CR2025 button batteries (not included) 9. Material: ABS 10. Size: about 11.4x2.5x3cm, the length of the detection line is about 1.5m, and the length of the power cord of the cigarette lighter is about 1.4m Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia