Cigarette Lighter Voltmeter Portable LED Digital Display Volt Tester Electric Voltage Meter for Auto Car Vehicle Battery Monitor

Cigarette Lighter Voltmeter Portable LED Digital Display Volt Tester Electric Voltage Meter for Auto Car Vehicle Battery Monitor 8-30V Black black.Features: LED display cigarette lighter electric voltage meter for auto car battery. Car battery voltage display. Powered by car cigarette lighter charger (DC 12~24 V). Installation: Insert the jack of the product into a cigar socket. This digital gauge displays the voltage of batteries in the car. With the high brightness of the LED(light-emitting d