Easy to operate - 7 ft long PU spring steel wire provides greater flexibility, lighter weight, and higher durability than ordinary wire. - Large clips enable one-handed operation for quick, convenient testing. High security and protection - Pure copper clips with an insulated protective cover deliver a secure grip on bodies and screws. - Insulation helps protect against electric shock during use. - Circuit board includes line protection for added safety. Sharp probe design for versatile access - Sharp stainless steel probes can pierce wires for reliable contact. - Probes are suitable for narrow or hard-to-reach areas, making testing more convenient. Wide compatibility and practical applications - DC test range: 6V, 12V, 24V. - Ideal for checking circuits across various vehicles. - Quickly test car headlights, taillights, turn signal circuits, faulty sockets, and fuse connections. Use scenarios - Diagnose automotive lighting circuits in cars and other vehicles. - Inspect fuse connections and related sockets to identify faults. - Access and test wiring in tight spaces behind dashboards or within crowded engine bays.