This automotive spark plug tester pen is designed to efficiently diagnose ignition system issues in vehicles. Its sleek, pen-style design ensures portability and ease of use, making it ideal for both professional mechanics and car enthusiasts. The tool helps identify faulty spark plugs, ensuring optimal engine performance and reliability. Features -Color:Black -Material:Plastic -Size:11.80X2.50X2.50cm/4.64X0.98X0.98in -Quick diagnosis: easily identify spark plug issues to ensure stable engine performance and enhance driving experience. suitable for maintaining optimal vehicle functionality -High precision testing: advanced technology provides accurate fault detection, preventing unnecessary replacements for car owners -Portable design: compact and lightweight, this tool allows car owners to perform anytime, anywhere without requiring professional equipment -Wide compatibility: suitable for various vehicle types, including suvs, and light commercial vehicles, catering to diverse automotive needs -Digital display: features a clear and easy to read digital interface, making it simple for beginners to use and improving overall vehicle maintenance efficiency Package list: 2 x Spark Plug Tester