Pico current clamp 60a ac dc with bnc and 3m screened lead pp264 pico pp264 the pp264 current clamps is ideal for use with picoscope automotive oscilloscopes for measuring currents between up to 60a this enables the picoscope to display current waveforms for fuel injectors and fuel pumps see waveforms below br br the current clamp has two calibration settings set by a slider switch on the handle of the probe br 1 mv 10ma 100 mv 1 a use this for testing currents up to 20a br