Car Spark Plug Tester, Coil-on Plug Ignition Spark Circuit Tester, Car Diagnostic Test Tool, Adjustable Ignition System Coil Tester

Coil-on Plug Ignition Spark Tester, Adjustable Diagnostic Tool for Spark Plug Circuits About this item 【Diagnostic Tool】: This automotive spark plug tester is specifically designed to measure coil voltage and high-energy spark leakage, allowing for quick identification of weak sparks within minutes. It effectively assists in diagnosing whether your vehicle's powertrain is functioning properly. 【Clear Scale】: Featuring a clear scale on the plastic surface, this spark plug tester enables easy reading of the gap measurement. The spark resistance settings are 10k, 20k, 30k, and 40k ohms. 【Easy to Use】: The spark plug diagnostic tool is user-friendly. Simply secure the clamp to the car engine, connect the other end to the spark plug wire, and observe the small window to gauge the spark length. Coil quality can be evaluated based on spark color and flash distance; a longer spark gap indicates a stronger coil. 【Adjustable Design】: The round screw assembly facilitates quick adjustments to the spark gap, ensuring a secure testing experience and mitigating risks of fire or ignition coil damage. 【Specifications】: The spark plug diagnostic tool measures 4.53 x 1 x 1.1 inches, with a cable length of 19.7 inches. This spark tester offers a safe and reliable method for fault diagnosis, making it convenient for use with most small engines, cars, boats, motorcycles, lawnmowers, and more. Size: 4.53 x 1 x 1.1 inches.

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