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The LH2040's advanced jaw design means that the accuracy is little affected by external magnetic fields or off-centre conductor positioning. Utilisation of Hall effect technology ensures a broad flat frequency response resulting in optimum accuracy even when harmonics are present.
By using True RMS measurement techniques the 40 series instruments avoid errors (up to 50%) which can occur when non-sinusoidal waveforms created by today's complex loads are measured using traditional average-reading techniques. True RMS measurements are available for AC, DC (A, V) and AC+DC (A).