Multiple functions: alternator state check, battery state check, check before charge and overload display. 6-LED display, clearly present the alternator and battery state. Two testing clips for safe and easy operation. Small size and light weight, convenient to carry. Fit car, motorcycle, etc., with 12V battery. Suitable for 12V lead acid batteries, hardtop batteries, discharge batteries and maintenance free batteries heavy duty insulated clamps. easy and safe to use, no sparking. And it with a good chip inside, so it is not easy to get hot on the surface six LED lights display indicates condition. Specifications: LED quantity: 6 (2 red, 3 green and 1 yellow) Material of wire: 0.06square millimeter copper Max. voltage and current: 12V 15A Length of wire: 27cm / 10.6in Battery tester size: 12 * 5.2 * 1.8cm / 4.7 * 2 * 0.7in Battery tester weight: 67g / 2.4oz Package size: 25 * 14.5 * 2.5cm / 9.8 * 5.7 * 1in Package weight: 110g / 3.5oz Package including: 1 * Battery Tester with Two Clips