91C4 AC current meter,dc current meter,current transmitter 1.OEM 2,High quality,reasonable price,hot sale 91C4 AC current meter,dc current meter,current transmitterThe scope ... indicate relative parameter,such as AC,DC,Voltage,power synchronous volume,frequency,expended voltage and overload current etc.The product performance ... connect 50mV,60mV or 75mV shunt 91C4 single phase AC current meter