DMiotech DC 100V 10A Digital Voltmeter Ammeter Multimeter Car Voltage Ampere Meter Panel 2 in 1 Red Blue Dual LED Digital Tester Voltmeter and Ammeter, 2 in 1 function Voltmeter Ammeter, Top red line display voltage, bottom green line display current, easy measurement. Uses in autos, marine, aircrafts, test instruments, solar, wind, hydro power system etc for voltage current indications and monitoring electrical systems. High accuracy, low power consumption. This is a volt and current testing meter, LED digital display, panel mount design. Misconnection between voltage input and current will lead damage to the meter, Please make sure the voltage and current are connected correctly. It also be used for other products voltage and current measurement purposes.