12V Spark Plug Tester for Vehicles

Compatible with Most 12V Gasoline Car Spark Plugs

Our dual holes spark tester is designed for most 12V gasoline car spark plugs. Before purchasing, ensure it is compatible with your specific spark plug to avoid any issues. Note that this device is not suitable for lawn mowers and chainsaws.

Enhanced Safety with Protective Cover

The dual holes spark plug tester comes with a transparent protective cover. This feature ensures clear visibility of test data while protecting the operator from potential hazards. Always cover the protective cover during use to ensure operator safety and accurately assess the test results.

Broad Working Frequency Range (500-6000rpm)

The spark tester operates within a range of 500 to 6000 revolutions per minute (rpm). The higher the frequency, the stronger the spark intensity. Easily adjust the frequency using the rotary switch according to your needs, making this device both convenient and practical.

Dual Holes for Accurate Testing

Designed with a double-hole test function, this spark tester allows you to clearly evaluate the performance of your spark plugs. Simply insert the new spark plug and the one to be tested into the test holes, and accurately judge the performance. This method saves time and ensures efficient testing.

User-Friendly Plug-and-Play Operation

Operating the dual holes spark tester is straightforward. Simply insert the spark plug into the test hole, cover the protective cover, and power on for testing. Equipped with a high-voltage indicator light, you can easily and clearly observe the test results. No complicated procedures are required – just plug and play for hassle-free testing.