... control DW series Single phase Electric Meter(vol/ampere/power/frequency/power factor) Features: 1) Input: 0-5A/ ... electrical parameters,such as voltage/ampere/power/power factor/frequency/electrical degree/reactive power/power frequency.2) Accuracy:0.2%,voltage/ ... , Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer ...