√ Professional Design - According to spark color and flash over distance to determine the quality of the coil. √ Great Value - Can intuitively convenient to understand the operation of the ignition coil. √ Better And Faster - It is the quickest way to test for no-start conditions. √ Easy To Read - High visibility white lettering makes it easy to read the gap measurement. √ Perfect Selection - Screw assembly adjusts spark gap quickly and easily. Avoid fire, the ignition coil burned out and so on.
