The Amprobe ACD-50NAV is a CAT IV 600V True RMS power clamp meter designed for industrial facilities maintenance and motor testing. It measures AC/DC voltage to 1000V, AC current to 600A, and delivers comprehensive power quality diagnostics including THD from 0.1% to 100%, individual harmonics 1st through 25th, power factor, and real power to 600kW. Specialized features include inrush current capture for motor starting, low-pass filter for variable frequency drive measurements, phase rotation indication, and non-contact voltage detection. The innovative joystick navigation system enables one-handed operation. The 37mm jaw accommodates large conductors. Rubber overmold body is drop-proof to 4 feet. Includes test leads, deluxe carrying case, and 9V battery.