- Enhanced ignition diagnostics: This advanced spark plug tester provides a clear view of power reserve and ignition voltage intensity, helping you determine whether your spark plug is performing at optimal levels. - Versatile and adjustable: It analyzes spark color and distance to assess coil quality. The rotating screw lets you set the spark gap precisely, reducing ignition coil wear and helping prevent potential fire hazards. - User-oriented design: A secure fixing clip keeps the tester in place for effective, quick diagnostics. Simple to use and a practical addition to your ignition system maintenance routine. - Robust build: Made from high-quality steel alloy, this ignition spark tester offers durability and reliability for long-term use as a dependable diagnostic tool. - Use scenarios: - During routine vehicle maintenance to verify spark plug performance and identify weak sparks. - After coil replacement to assess coil quality by spark color and distance. - When adjusting spark gap to minimize wear and reduce ignition hazards.