General description Adjustable Spark Plug Tester is designed for misfire testing and provides a convenient way to intuitively understand the operation of the ignition coil. This tool allows users to determine the quality of the ignition coil based on the spark color and spark gap, helping to identify issues such as dirty spark plugs, bad points, or faulty wires and connections. Technical specifications Material: Metal Diameter: 22 mm Length: 115 mm Installation Screw-on mounting for quick and easy adjustment of the spark gap. Alligator clips securely ground the tester. Usage To use the Adjustable Spark Plug Tester, connect the alligator clips to the ignition coil and adjust the spark gap as needed. Observe the spark color and gap to assess the coil's performance and identify any potential issues. Other information Package Includes: 1 x Spark Plug Tester Please allow 1-2 cm difference due to manual measurement. There may be slight differences in the color tone of the pictures and the