The Klein Tools AC/DC Clamp Meter is a professional electrical measuring instrument designed to safely measure AC/DC current without disconnecting conductors. It also measures AC/DC voltage, resistance, continuity, frequency, capacitance, and temperature, depending on the model. Featuring a large backlit display, True RMS technology on supported models, and a durable clamp jaw, it delivers accurate readings in residential, commercial, and industrial electrical systems. Built with overload protection and a rugged housing, it is ideal for electricians, maintenance technicians, HVAC professionals, and engineers. Its ergonomic design, easy one-hand operation, and reliable performance make it suitable for troubleshooting, equipment maintenance, circuit testing, and preventive electrical inspections in demanding work environments.