Adjustable Spark Plug Tester - Easy-to-Use Ignition System Test Tool for Autos Ensure your ignition system is performing at its best with this adjustable spark plug tester, specifically designed for autos and engines. This professional tool allows you to test the quality of ignition coils by observing spark color and flash-over distance, providing an intuitive and reliable diagnostic solution. The tool features a high-visibility white lettering scale for easy reading of the gap measurement and a screw assembly for quick spark gap adjustments. Compact and lightweight, this ignition system test tool is the fastest way to identify no-start conditions and ensure optimal engine performance. Bullet Points: Brand NEW adjustable spark plug tester designed for testing ignition systems and engine coils. Observe spark color and flash-over distance to determine ignition coil quality and performance. High-visibility white lettering allows for easy reading of the spark gap measurement. Screw assembly ensures quick and simple adjustments of the spark gap. Lightweight, durable, and compact design makes it easy to use for automotive diagnostics. Specifications: Material: Insulation Materials Length: 115mm / 4.53in Diameter: 22mm / 0.87in Cable Length: 520mm / 20.47in Color: Black Weight: 0.22 oz Package Includes: 1x Adjustable Ignition Coil Tester A must-have tool for mechanics and auto enthusiasts, ensuring quick and accurate ignition system diagnostics. (description exceeds maximum possible length)