2237-20 Milwaukee Clamp MeterFeatures Measures up to 600 amps AC DC, Large 1. 30 jaw opening Thin Jaw Profile for easier wire measurement in panels or in bundles Wide Voltage range to 600 AC DC volts True RMS for accurate measurement in all applications Built In Voltage Detector and LED Work Light Frequency Measurement High Contrast, White on Black Display with Backlight for easy reading Rugged over molding increases durability and user grip CAT III 600V for increased safety