Test Leads - Jumper, SpecialtyTest leads, also known as jumper wires, are electrical wires or cables used to connect test equipment to a device under test (DUT) in order to measure its characteristics and performance. There are many different types of test leads, including alligator clips, banana plugs, needle probes, and hook clips, each of which is designed for a specific purpose and application. Specialty test leads, as the name suggests, are test leads that are designed for specific applications or industries, such as automotive, medical, or aviation. These test leads often have unique connectors or features that make them well-suited for their intended use.