The CA3018 is a 3000A AC flex clamp-on adaptor for multimeters and clamp on meters with standard sized banana plugs. The CA3018 is an 18 inch flexible clamp capable of measuring AC Currents up to 3000A. Complete with built-in flex clamp cable, 6.6ft (2m) lead with banana plugs and two AAA batteries. UL listed with a CAT IV 600V safety rating.