The spark plug tester pen is a versatile tool suitable for testing ignition systems in cars, motorcycles, and small engines. Its durable construction ensures performance, while its intuitive operation makes it accessible for users of all skill levels. This tool is essential for maintaining engine efficiency and reducing repair costs. Features -Color:Black -Material:Plastic -Size:11.80X2.50X2.50cm/4.64X0.98X0.98in -Fast spark plug testing: quickly assess spark plug performance to ensure engine reliability and enhance overall vehicle efficiency during daily use -Accurate fault detection: advanced testing technology identifies spark plug issues with precision, helping car owners avoid unnecessary repairs and replacements -Compact and portable: lightweight design allows for easy storage and transport, enabling car owners to perform checks wherever and whenever needed -Versatile compatibility: works seamlessly with multiple vehicle types, including passenger cars, suvs, and light commercial vehicles, offering broad usability -Display: digital interface provides clear and intuitive readings, making it simple for anyone to diagnose spark plug conditions effectively Package list: 2 x Spark Plug Tester