Description: 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. Specification: Material: ABS+Metal Length: approx. 140mm/5.51 inch Color: Transparent+Black Package Includes: 1 Piece Spark Plug Tester 1 Piece Cable Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you
