Wide Compatibility: Works with standard measuring tool, enabling users to check electrical properties, suitable for automotive, household, and electronic equipment servicing Fine Point Design: The 0.7mm slender point accurately penetrates insulation layers, ensuring effective testing without harming conductors, perfect for sensitive circuit examinations Quick Connection: Features a 4mm plugs for fast and easy attachment to testing devices, simplifying the testing process and enhancing repair efficiency Size: Its moderate size allows it to be easily stored in tool case, making it a practical choose for mobile automotive and electrical testing, ideal for experts and enthusiasts Strong Build: Crafted from steel and, the tester excellent resistance to erosion and wear, ensuring service functionality and reliability