"Direct power measurement for direct current and active power measurements for single-phase AC current and balanced three-phase rotating current. Reactive power detection. Also measures mesh voltage(s). Ideal device for workshop, service and installation work. Rotary field direction display. cosf measurementAbsolute Maximum Power Measurement = 25kWWeight = 800gAbsolute Maximum AC Current Measurement = 25A acAbsolute Maximum DC Current Measurement = 25A dcAbsolute Maximum DC Voltage Measurement = 500V dcMaximum Power Factor Measurement = 1Minimum Power Factor Measurement = 0Power Source = BatteryBattery Type = 9VLength = 110mm"