... 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 ... a basic 50mV meter combined with an external shunt. AC Ammeters above ... Voltage: 100V, 220V, 380V, 500V Limit Of Voltage Fluctuation: +-20% Consumption: Max. ...