Feature: Specification: Features 1. Easy to use - No need to open the engine hood to connect the battery, you can sit in the car to test; 2. Automatically Choose - Support 12V cars, no need to choose for intelligent identification; 3.With 6 display LEDs, it clearly shows the status of the alternator and the battery. 4.Protection Measure - Connect the reverse protection function, the wrong operation of the positive and negative poles will not damage the battery and the device; 5. With 2 tester clips, improve safety. Compact design, light weight, easy to carry. Specification: LED quantity: 6 (2 red, 3 green and 1 yellow) Wire material: 0.06mm squared copper Max voltage and current: 12V 15A Cable length: 25cm / 9.84 inch Battery tester size: 12 * 5.2 * 1.8cm / 4.7 * 2 * 0.7in Features: Portable Functions: improve driving safety Material: plastic, copper Package including: 1* 12V Digital Battery Alternator Tester Package List: Package including: 1* 12V Digital Battery Alternator Tester