... -V8-30V DC10mV1%+2digit 35V Voltage monitor, Battery tester, Car voltage meterPerfect design, Ultra-bright displayFor 12V ... plugs into vehicle's cigarette lighter or power receptacle-Used for both 12V and 24V Vehicles- Ultra ... into the vehicle's cigarette lighter or power receptacle to monitor battery. ISO9001 & CEEasy to read ... Car Voltmeter DC12V, Digital Car battery tester,Automation, car battery load ...