Versatile and rugged tools for applications with high currents Confidently take reliable readings with the True RMS; Fluke 355 digital clamp meter the tool of choice for high current clamp-on amp meter measurement up to 2000 A. The extra-wide jaw easily clamps around large conductors; typically found in high-current applications. The extra rugged design and CAT IV 600 V; CAT III 1000 V ratings add an extra element of user protection when taking high-powered measurements. Accurate peak measurements can be taken using the in-rush current mode; ideal for motors and inductive loads. The 355 also measures voltage and resistance; making this an ideal clamp meter for utilities; electrical contractors and industrial service technicians.