... 4-20mA. Single phase 8 digits Electrical meter(WH) TypeSingle phase electric meterBrandMYPINModeMDW seriesBasic Current0- ... ratio setfreely,true effective value measurement,mainly electricity value.can display parameter value of voltage/ ... and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer ...