1. Unmatched Reliability: Made from nickelplated brass and ABS for conductivity and resistance to bending and deformation, ensuring longlasting durability. 2. Testing Accuracy: The test hook clip is designed for accuracy and precision, operating within an impressive voltage range of up to 600V CAT II. With an operating temperature range of 40 to 100°C and a current of 3A, it delivers safety performance to adapt to various testing environments. 3. Practical Hook Design: The test hook clip features a unique retractable spring at the front and a stable hook design for precise results. It offers easy and convenient testing access anytime, anywhere. 4. Efficient Compatibility: The P30056B end of the test hook clip features a 4mm socket and works with multiple interfaces such as 4mm banana plugs or other 4mm connectors. The 2mm inner spring plug is suitable for use with 2mm multimeter probes, ensuring efficient and optimized connectivity for all testing needs.