The Klein Tools CL700 Auto-Ranging Digital Clamp Meter is a professional-grade tool designed for accurate and reliable readings. It measures up to 600A AC current, 1000V AC/DC voltage, and features True RMS technology for precision in noisy electrical environments. This item is in open-box condition; the packaging has been opened, but the unit is brand new and has never been used. It includes non-contact voltage testing, temperature measurement, and data hold features, and is built with Klein's durable "Tough Meter" design. Rated CAT IV 600V and CAT III 1000V for safety and performance.