... ,reasonable price,hot sale analog current meter 96*96mm,electronic instrument,current transmitterThe scope of applicationThe series ... parameter,such as AC,DC,Voltage,power synchronous volume,frequency,expended voltage and overload current etc.The product ... :when self-frequency constant value various is ±15%,The error of indicationg volume isn't more ... external connect 50mV,60mV or 75mV shunt