Keysight-Technologies-U1583B-Current-Clamp-Keysight-Technologies-U1583B-The-Keysight-Technologies-U1583B-is-a-dual-range-AC-current-clamp-which-enables-you-to-take-current-readings-without-breaking-the-circuit-being-measured-Its-40A-&-400A-dual-range-gives-you-the-flexibility-you-need-in-a-single-instrument-Suitable-for-measuring-DC-&-AC-currents-up-to-400A-the-U1583B-can-be-connected-to-a-handheld-digital-multimeter-or-handheld-oscilloscope-via-a-BNC-adaptor-Keysight-Technologies-U158