Amprobe AC68C [2727919] 600A AC/DC TRMS Clamp Meter. The Amprobe AC68C is a TRMS Digital Clampmeter that measures both AC and DC current as well as AC and DC voltage, Resistance, Frequency, Continuity, and Diode Test. The AC68C is a top-of-the-line professional clamp multimeter with 8 functions and 11 ranges. The AC68C meter measures AC and DC voltage to 600 V, AC and DC current to 600 A, the meter also measures frequency and resistance. Other features include data and AC peak hold and DC auto zero functions. Readings are shown on the 4000 count, 3-3/4 digit display with a maximum reading of 3999. The Amprobe AC68C TRMS clamp-type digital multimeter has CAT II 600 V and CAT III 300 V safety rating.