digital panel meter,panel meter,energy meter,ampere meter,volt meter,freqency meter,power meter,power factor meter,hour meter, m digital panel meter,panel meter,energy meter,ampere meter,volt meter,freqency meter,power meter,power factor meter,hour meter, moving coil ... %, DC Ammeters above 50A require a basic 50mV meter combined with an external shunt. AC Ammeters above 100A require a basic 5A ...