clamp meter

A clamp meter is a device used by electricians to measure electrical current flowing through a wire without needing to disconnect or cut the wire. It features a jaw-like clamp that opens to encircle a conductor, allowing the meter to detect the magnetic field generated by the current. This makes testing safer and more convenient, especially for high currents or live circuits. In addition to current, many clamp meters can measure voltage and resistance, making them versatile tools for diagnosing electrical systems efficiently and safely.