... .5~6mm²Weight 400gBest metering device Manufacturer in China.power electric.Measure kWh, kvarh, Ampere, Volt, Frequency, power factor, active ... Mvarh Class 2 IEC12681.Advantages: 1>Multifunctional electric for high and low voltage electric network2>Modern microprocessor and AC sampling technique.3 ... liquid crystal display screen 5>Power parameter,people-oriented operation. electric digital power meter