Spark Plug Tester Tool for Cars and Vehicles with 12MM Socket and Dual Holes

Product Description

Why You Must Buy Dual Holes: This spark plug tester features two spark plug sockets, allowing you to test two spark plugs simultaneously. By comparing their spark intensity, you can evaluate their performance and ignition strength, identifying which one is faulty and needs replacement.

Wide Testing Frequency: Equipped with a testing frequency range of 0-6000 rpm, this engine ignition coil tester can accurately simulate real engine conditions. Higher frequencies result in stronger spark intensity, making sparks more visible, especially in darker environments. It's advised not to use this tester in bright environments for optimal visibility of the sparks.

Widely Compatible with Vehicles: This automotive ignition tester is highly versatile, compatible with 12V gasoline vehicles, including crankshaft engines and motorcycles.

Widely Compatible with Spark Plugs: Designed for universal use, this spark plug tester can test all spark plugs with a diameter up to 12mm. For spark plugs with a diameter of exactly 12mm, they will perfectly fit the tester’s aperture. If the diameter is less than 12mm, a small gap may be present, but this does not impact the testing. Adding two limit washers can provide more stability during testing.

Easy to Use: Simply insert the spark plugs into the test holes of the spark plug tester and adjust the frequency knob. Observe the spark plugs' performance at various frequencies to determine if they are functioning correctly or need to be replaced.

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