4MM COMPATIBILITY Each probe uses a standard 4mm banana plug, compatible with most multimeters and test leads for convenient testing. EASY MAINTENANCE WITH REPLACEABLE NEEDLES Replaceable needles offer an economical maintenance option and extend the life of your probes. SAFE VEHICLE DIAGNOSTICS HOOK Designed to grip wires up to 4mm securely, the vehicle test hook enables safe and efficient electrical testing during diagnostics. Use scenarios Automotive diagnostics Use these probes to test vehicle electrical circuits such as sensors, wiring harnesses, and fuses. The secure 4mm grip and reliable connections support accurate readings during diagnostics. Electronics lab testing In the lab, connect to multimeters and test leads for precise measurements on circuit boards, sensors, and power rails. The replaceable needles help keep tools in service with minimal downtime. Field service and maintenance On site, quickly swap needles as needed to maintain measurement accuracy while minimizing downtime. The 4mm compatibility and secure grip support efficient electrical testing in various environments.