Measuring 3-phase current, voltage, active power, reactive power, kwh, ... 250VAC, 5A/30VDCTransmission output0-20mA / 4-20mA / 0-5V / 1-5V transmission output, programmable to set transmission items and ... humidity < 93%SafetyInsulationSignal, power supply, output terminal resistant to case > 100MΩDielectric strengthInput power supply > 2kV, input ... 2: 108X108 (or 111X111) mm. Multifunction Power Meter