* LCD Cigarette Lighter Voltage Digital Panel Meter Volt Voltmeter Monitor for Auto Car Truck.
* Pattern Name: 1piece
- This digital gauge displays the voltage of batteries in the car. With high brightness of LED, there is no difficulty in seeing the display. This product is simple enough to use, just plug it into your lighter, watch your alternator’s output from idle to accelerated speed. You could diagnose your car’s alternator and battery “on the fly”. Color: Black.