- Spark Plug Tester: Quickly diagnose ignition system issues with this essential tool that delivers accurate results for all types of ignition problems. - Grounding Clip Included: Features a secure grounding clip and a durable anti-rust rubber sleeve, ensuring a reliable connection and ease of use during testing. - Ignition Coil Evaluation: Assess ignition coil performance by observing spark color and jump distance. Normal spark colors are purple and blue, while yellow, red, or irregular interruptions indicate possible issues. - User-Friendly Design: Easily connect the tester between the spark plug and spark plug wire for hassle-free operation. - Versatile Applications: Ideal for both professional mechanics and DIY enthusiasts. Use it for troubleshooting vehicles, motorcycles, and small engines to ensure optimal ignition performance. - Durable and Reliable: Constructed from high-quality materials, this spark tester is built to withstand the rigors of automotive testing, providing long-lasting service. - Compact Size: Lightweight and portable, making it convenient for on-the-go diagnostics or storage in your toolkit. Make ignition system diagnostics simple and effective with this high-performance Spark Plug Tester, designed for efficiency and accuracy.