Features:< /> Wide range of applications: EM285 circuit tester can be used to test continuity, test voltage polarity, check lamp, check electric motor, track and locate shorts, test for bad ground contacts, etc. Long test lead: the length of the lead is approximately 16 feet, which allows you to easily test any electrical system. Short Circuit Protection: The unit has short circuit protection and can instantly test bad contacts of Easy Operation: After simply plugging the unit into the vehicle battery, the automotive technician can conduct positive or negative battery current to the tip by flipping the switch switch forward or reverse powered.< /> 6-24V DC Complete Test Kit: Do not use on AC voltage.< />< /> Instructions #39;operation:< /> Unwind the cable from the unit< /> Attach the red clip to the positive terminal of the vehicle battery< /> Attach the black clip to the terminal vehicle battery negative< />< /> Features:< /> Color red< /> Operating voltage: 6-24V DC< /> Cable length: 16 feet< /> Overload protection: 8A (When the current exceeds 8A, this item will automatically disconnect the current.)< /> Package size: 26.5 * 9 * 4 cm< /> Package weight : 320g< />< /> Package List:< /> 1 * Circuit Tester< />