Langlois Wide bandwith TRMS digital wattmeter (3 displays: Volt, Amp, Watt)

Langlois, WATTELEC is a digital multimeter with floating inputs simultaneously displaying the 3 electric values: voltage, current and power. WATTELEC measures the TRMS effectivevalues of the U I W measurements, possibly with direct component superimposed. The wide bandwidth of the apparatus allows measurements to be made from DC to 70kHz or on chopped signals (frequency converters, industrialchoppers, rectified supplies etc.). The apparatus voltage and current inputs are insulated between each other and relative to earth. WATTELEC measures single phase and balanced three phase powers.