... measure 8 electrical parameters,such as voltage/ampere/power/power factor/frequency/electrical degree/reactive power/power frequency.2) Accuracy:0.2%,voltage/ampere ratio ... , Digital Adjustor,thermocouple (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State ...