The Fluke 393 True RMS AC/DC Clamp Meter with iFlex CAT III 1500V safety rating is designed for technicians working in high voltage DC environments: solar, wind, electric rail, data centers with battery strings for uninterrupted power. The clamp measures up to 1500V DC, 1000V AC, and up to 999.9A DC or AC through the clamp. The included flexible iFlex current clamp extends AC measurements up to 2500A. This clamp is thin so it allows you to access cables in crowded junction boxes. The test leads are designed for your work and are also CAT III 1500V DC. Other key features: IP54 rating: ideal for working outdoors, on solar and wind turbines. DC power measurement, readings displayed in kVA. The audio polarity signal prevents accidental miswiring. The visual continuity indicator produces a bright green light on the display, ideal for working in dark and noisy environments. When measuring AC current, the included iFlex flexible current clamp gives you unprecedented access to cables in tight spaces. The iFlex current clamp can pass through extremely small spaces and delivers precise current measurements.