These are insulated wires with specialized connectors used to connect a multimeter to a circuit or device under test. They facilitate the measurement of electrical parameters like voltage, current, and resistance. For instance, when diagnosing a faulty circuit, these items are essential for making contact with various points in the circuit to identify the source of the problem.
The accuracy and reliability of electrical measurements depend heavily on these components. Proper selection and maintenance contribute to safety and precision, protecting both the user and the equipment. Historically, advancements in materials and design have led to more durable, safer, and more precise options, improving the efficiency of electrical testing and troubleshooting.