Clamp meters allow for convenient measurement of electrical currents without having to interrupt the circuit. They are suitable for electrical installations, maintenance work, troubleshooting, and technical diagnostics. Depending on the model, clamp meters can measure alternating current (AC) and direct current (DC) and offer additional measurement functions such as voltage, resistance, or continuity measurements. The practical clamp shape allows for easy encirclement of individual conductors and facilitates measurements even in hard-to-reach places. When selecting a clamp meter, the measuring range, measurement type, accuracy, jaw opening, and available additional functions should be considered. Compact models for mobile use are available, as well as comprehensively equipped measuring devices for professional testing and maintenance work.