Pico current clamp 600a ac dc with bnc and 3m screened lead pp266 pico pp266 the pp266 current clamp is ideal for use with a picoscope automotive oscilloscope to display starter current waveforms charging currents and for performing quick compression tests br br the current clamp can measure up to 600a ac or dc in use there is no need to break into the circuit or disturb the isolation as the opening jaws simply clamp around the current carrying conductor no electrical contact is requ