Featuring a user-friendly design, this spark plug tester pen allows quick and accurate testing of ignition systems in various automotive engines. Its compact structure fits comfortably in hand, enabling precise diagnostics. suitable for troubleshooting, it ensures smooth engine operation by detecting ignition problems before they escalate. Features -Color:Black -Material:Plastic -Size:11.80X2.50X2.50cm/4.64X0.98X0.98in -Efficient spark : diagnose spark plug conditions quickly to maintain engine stability and ensure smooth vehicle operation for a better driving experience -Solution: avoid unnecessary spark plug replacements with precise fault detection, reducing maintenance expenses and improving repair accuracy -Design: designed for convenience, this tool enables car owners to perform spark plug tests independently without relying on professional services -Universal application: compatible with a wide range of vehicles, including family cars, suvs, and light trucks, meeting the needs of various drivers -Clear digital readout: equipped with a digital display for straightforward readings, making it accessible for users of all skill levels to maintain their cars effectively Package list: 2 x Spark Plug Tester