The Laser 6551 is a digital clamp tester for AC/DC current measurement & features a small clamp probe for ease of acces to to a 0.5'' jaw aperture. This model also benefits from a special low Amps model for diagnostic work on 4a/80a ranges with 1m A resolution & is ideal to be used with hybrid & electric vehicles. Specification: AC/DC current to 80a, AC/DC voltage 400m V-600V, resistance 400-40, frequency, duty cycle, capacitance, diode & continuity check This unit comes supplied with test leads, carry case & battery CE certification & Ro HS compliance.