Phenovo Universal Adjustable Auto Car Ignition System Auto Spark Plug Tester Tool 140mm - Product Features
- According to spark color and flash over distance to determine the quality of the coil.
- Can intuitively convenient to understand the operation of the ignition coil.
- Connect the tool between the spark plug and the plug wire ,Assists in determining coil voltages.
- Designed to prevent high energy sparks arching directly to any ground.
- Avoid fire, the ignition coil burned out and so on.