The Klein Tools CL445 is a high-quality digital clamp meter designed for accurate measurement of electrical currents. Ideal for professionals and DIYers, it features a 400-amp AC/DC current range, allowing for precise readings without the need to break the circuit. The CL445 includes a large, easy-to-read display, a built-in flashlight for low-light environments, and a rugged design to withstand tough conditions. With its auto-ranging and hold function, it simplifies troubleshooting and diagnostics for electrical systems, making it an essential tool for electricians and technicians.