... control DW series Single phase Electric Meter(vol/ampere/power/frequency/power factor) Features: 1) Input: 0-5A/0 ... /power/power factor/frequency/electrical degree/reactive power/power frequency.2) Accuracy:0.2%,voltage/ampere ratio set freely.3) Output ... , Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, Proximity Sensor ...