3-60VDC line tester can be used for 6V, 12V, 24V and 48V systems. Real-time display of test voltage. The circuit test is perfect for checking various vehicle circuits, quickly checking car headlights, taillights, turn signal circuits, faulty sockets, fuse connections, and also for testing other 4-60V DC wiring and circuits. The integrated structure design of the probe protective sleeve is adopted to increase the needle LED indicates the positive and negative poles, red is the positive pole and green is the negative pole. The professional automatic circuit tester has a built-in circuit board chip, which is and more than the traditional test lamp and prevents the automobile computer board from burning out., Weight: 178.1 pounds, Manufacturer: Agwuoetr