[WIDELY APPLICATION]: This EM287 circuit tester can be used to test continuity, test the polarity of a voltage, check the lamp, check the electric motor, follow and locate short circuits, test for bad ground contacts, and measure dc voltage from 2V to 24V, etc.
[16FT LONG TEST LEAD]: This automotive circuit tester has about 5m(16ft) cable length which allows you to test any electrical system easily.
[OVERLOAD PROTECTION]: When the current exceeds 8A, the car electrical tester will disconnect the current automatically.