Adopt ABS high-hardness insulating shell, one-piece forging simple, compact, sensitive, safe and durable. Lengthened spring wire, high temperature resistance, not easy to burn; good tensile properties, not easy to deform. Circuit Test: Ground alligator clip, touch wire or fuse with probe, diagnose short circuit or fuse failure. Bidirectional voltage tester, you can connect the alligator clip to negative or positive ground, there is also a LED on the board for polarity indication, red light for positive and green for negative. The circuit tester pen test light is electrically equipped with a sensitive indicator light. Once the electricity is detected, it will respond quickly to the indicator light, which can prevent false results and accidental electrical damage, and is safer and more accurate to use. It can be used for automobile insurance line detection, line voltage test, line continuity test, etc., such as car headlights, tail lights, faulty sockets, fuse connections, etc., whether it is commercial or household, it is an essential tool. Weight: 125g Color: red, black Material: ABS Quantity: 1pcs Packing list: 1*car battery tester Only the above package contents are included, other products are not included. Note: Reflection of light and different monitors may cause the item's color to be slightly different from the actual item. Measurements allow +/- 1-3 cm.