1. Wide range of applications: The EM285 circuit tester can be used for various tasks such as testing continuity, testing voltage polarity, checking bulbs, checking motors, finding short - circuit faults, and testing poor grounding. 2. Long test leads: The cable has a length of approximately 16 feet, which enables easy testing of any electrical system. 3. Short - circuit protection: The device is equipped with short - circuit protection and is able to detect poor grounding conditions. 4. Easy to operate: After simply connecting the device to the vehicle battery, automotive technicians can conduct positive or negative battery current to the test probe by toggling the power switch back and forth. 5. Comprehensive 6 - 24V DC test kit: It is not suitable for use under AC voltage. 6. Operating instructions: - Unroll the device's cable. - Clip the red clamp to the positive terminal of the vehicle battery. - Clip the black clamp to the negative terminal of the vehicle battery. 7. Operating voltage: 6 - 24V DC. 8. Overload protection: 8A (The device will automatically cut off the current when it exceeds 8A). 9. Color: Black + Red. 10. Material: Plastic + Metal. 11. Package contents: - 1 circuit tester. Only the above - mentioned items are included in the package, and other items are not. 12. Precautions: The color of the item may vary slightly from the actual product due to lighting and different displays. The allowable measurement error is +/- 1 - 3 cm.