[Material] The circuit test probe handle is made of AS plastic, which is durable, resistant to electricity and heat. The probe is made of metal material, which has long service life, wear resistance and exquisite workmanship, which greatly improves the durability of use. Easy to useGround the alligator clip, then test the circuit with a probe. The sharp steel probe can easily penetrate insulation to inspect circuits, help find broken wires and live, and test fuses, lamp sockets and live, quickly and easily. [Test range] The test range of the voltage circuit test pen is 6V to 24V, which is the most common automotive voltage range on the market. The lightweight design gives you super convenience and easy portability. Wide UsePerfect for checking circuits, fuses, switches and wiring on low voltage systems such as cars, trailers, ships, motorcycles, etc. Package The package contains 1 automotive circuit tester.