... 1.OEM 2,High quality,reasonable price,hot sale single phase AC current meter,ac ammeter,meterThe scope of applicationThe series product is magnetic ... and distribution system to indicate relative parameter,such as AC,DC,Voltage,power synchronous volume,frequency,expended voltage and overload current etc ... 75mA 100mA 150mA 200mA 250mA 300mA 500mA 1A 2A 3A 7.5A 10A 20A 30A 50A 60A,More than 60A external ...