Digital Spark Plug Tester An advanced digital spark plug tester developed for motorsport, tuning, and professional vehicle diagnostics. With a wide RPM control range and a clear LCD display, it provides fast and reliable analysis of spark plug performance at both low and high engine speeds. Three test ports for comparison and load testing The tester is equipped with three separate ports: Two ports for direct comparison between new and used spark plugs One deeper port for testing under load/pressure This provides a more complete picture of the spark plugs condition and performance. Quick and easy operation: Connect the power, insert the spark plugs, and start the test. A clear indicator light shows that the unit is active, and the spark pattern is easy to read visually for quick evaluation . Specifications: Dimensions (main unit): 135 × 125 × 120 mm Power supply: Mains adapter DC 12V / 2A DC 12V via booster cables RPM range: 2009000 RPM Display: LCD screen Package contents: 1 × Spark