The Greenlee CMI-1000-C (52066397) True-RMS AC/DC Industrial Clamp Meter, Calibrated, 1000A AC/DC, 1000V AC/DC, is a hand-held testing device with the following measurement capabilities: AC and DC voltage, AC current, AC current AmpTip, frequency, non-contact electric field (EF) detection, resistance, and capacitance. It also checks diodes and verifies continuity. The meter is designed to be placed on or removed from insulated or uninsulated conductors.