200A High Precision Watt Meter Power Analyzer RC Battery Voltage Amp Meter for Voltage (V) Current(A) Power(W) Charge(Ah) and Energy (Wh) Measurement (200A) - - Amazon.com
VIDEO: Volt-Watt-Umrechner - so gelingt Ihnen die Umrechnung
Digital LCD Panel 100A AC 80 to 260V Digital Power Meter Monitor Voltage KWh Watt Voltmeter Ammeter Multimeter Tester Meter : Amazon.de: DIY & Tools