A. Wide range of applications: The EM285 circuit tester can be used to test continuity, check the polarity of a voltage, inspect lamps, test electric motors, locate short circuits, and identify bad ground contacts, among other functions.<br> B. Long test lead: The cable length is approximately 16ft, enabling easy testing of various electrical systems.<br> C. Short-circuit protection: The unit is equipped with short-circuit protection and can quickly test for bad ground contacts.<br> D. Easy operation: After a simple setup by connecting the unit to the vehicle's battery, automotive technicians can apply positive or negative battery current to the tip by toggling the switch forward or backward.<br> E. Comprehensive 6-24V DC test kit: Not suitable for AC voltage.<br> F. Operation instructions: Unroll the unit's cable; connect the red clip to the positive terminal of the vehicle's battery; connect the black clip to the negative terminal of the vehicle's battery.<br> G. Operation voltage: 6-24V DC<br> H. Overload protection: 8A (When the current exceeds 8A, the item will automatically disconnect the current.)<br> I. Colour: black + red<br> J. Material: plastic + metal<br> K. Package contents: 1 * Circuit Tester (Only the above items are included; other products are not part of the package.)<br> L. Note: Due to light and different display factors, the color of the item may slightly differ from the actual product. A measurement error of +/- 1-3cm is allowed.