Milwaukee 400A Clamp Meter. Heavy-duty True-RMS electrical current tester for professional residential, commercial, and industrial applications. The perfect tool for the professional electrician - includes all the features that are needed to get the job done in the field, on-site or in the plant. Features a jaw size of 1.0-inch measuring up to 350 MCM cable. Rated CAT III 600-volt, current measurement to 400A AC, voltage measurement to 600V AC/DC. Includes an LED work light to improve task lighting. Resistance measurement to 4000 ohms. Test for continuity. Black on white display and backlight for easier reading. Rugged over-molding for increased durability and user grip. Includes (1) electrical test lead set, (2) AAA batteries, and manual. Covered by 5-year warr