Amprobe ACDC-52NAV Information The Amprobe ACDC-52NAV is a clamp-on power meter that measures AC/DC current up to 600 A, AC/DC voltage up to 1000 V, resistance, frequency, capacitance, power, power factor, total harmonics distortion (THD), and individual harmonics from 1 to 25. It also includes inrush current measurement and phase rotation indication for 3-phase motors. The ACDC-52NAV features true-rms technology for improved accuracy in noisy environments, non-contact voltage detection for safety, and a low pass filter for measuring voltage and frequency on variable frequency drives. A continuity beeper quickly identifies shorts and opens. Image of Amprobe ACDC-52NAV clamp meter Here are the full specifications of the Amprobe ACDC-52NAV: