SincereetaliFeatures: Wide range of applications: EM285 circuit tester can be used to test continuity, test polarity of a voltage, check the lamp, check the electric motor, track and locate short circuits, test bad ground contacts, etc. Long Test Lead: The cable length is about 16 feet, allowing you to easily test any electrical system. Short Circuit Protection: The unit has short circuit protection and can instantly test for bad ground contacts. Easy Operation: After simply connecting the unit to the vehicle battery, the automotive technician can conduct positive or negative battery current to the tip by toggling the power switch forward or backward. Complete Test Kit 6-24V DC: Do not use on AC voltage. Operation Instructions: Unwind the cable from the unit Attach the red clip to the positive terminal of the vehicle battery Attach the black clip to the negative terminal of the vehicle battery Specifications: Color: Red Working Voltage: 6-24V DC Cable Length: 16ft Overload Protection: 8A (When the current exceeds 8A, this item will automatically disconnect the current.) Package Size: 26.5 * 9 * 4cm Package Weight: 320g Package List: 1 * Circuit Tester