1. Checks from 6 to 24V system with LCD display and LED flashlight

2. Test the automotive electrical system within 6 to 24V

3. Determine the polarity and circuit circumstance (short/open)

4. Activating the components with positive or negative current without jumper wire

5. Set includes cigarette lighter adapter, a hook-up clip, an extension probe (85mm), and extension 20ft lead