Flir CM82 True RMS 600A Industrial Portable Clamp Meter measures AC/DC Voltage up to 1000V and AC/DC Currents up to 600A with True RMS. The Flir CM82 features a VFD mode for improved accuracy on VFD controlled equipment, the ability to capture AC current spikes during appliance start-ups with inrush mode, harmonics and power efficiency measurements, phase rotation testing, and much more. The Flir CM82 Clamp Meter is truly a versatile clamp meter with a plethora of features.