CAR 12V Voltage/Alternator/Temperature LED Display

Plugs into the car's cigarette lighter socket to display the car's battery voltage and inside temperature. An audibleand visual alarm can be set to trigger when the car's battery voltage dips too low, which could save you from breaking down in the middle of nowhere with a dead car battery. The display features a tri-coloured LED to show thebattery status and electrical system status at a glance. Stylish modern design allows for easy dash mounting.