- MULTIFUNCTIONAL PROBE SET: This set features 2 multimeter test pens along with 8 interchangeable needles (4pcs 2mm copper and 4pcs 1mm gold plated), equipping you for a variety of electrical testing needs. - EXCELLENT CONDUCTIVITY: Made from pure copper with nickel plating, these probes provide reliable conductivity while the PE and PVC materials enhance durability for long-term use. - EASY NEEDLE SWAP: The included replaceable needles can be effortlessly switched out to accommodate different testing scenarios, accurate results every time. - COMPATIBILITY: With a 4mm female socket, these test probes are compatible with most multimeters and testing devices, making them an essential tool for professionals and hobbyists alike. - USE SCENARIOS: - Electronics bench testing and PCB diagnostics, where precise probing and variety of needle sizes help isolate faults. - Automotive electrical diagnostics, enabling safe probing of wiring, sensors, and connectors. - Field service or on-site troubleshooting requiring durable, versatile probes for reliable measurements.