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Adjustable Double-Hole Spark Plug Tester for 12V Gasoline Vehicles to Test Performance and Ignition Strength

<ul><li>【Eco-Friendly and Sustainable】Made with environmentally conscious practices, this product is eco-friendly and contributes to sustainability efforts. It is designed to minimize waste and reduce environmental impact.</li><li>【Versatile Functionality】This product is multifunctional and can be used for a variety of tasks, providing you with the flexibility and convenience needed to handle multiple uses with a single tool.</li><li>【High-Quality Materials】Crafted from premium, materials to ensure longevity and superior performance. Each product is meticulously tested to meet high standards of quality and safety.</li><li>【User-Friendly Design】Ergonomically designed for ease of use, this product offers intuitive controls and a comfortable grip, making it perfect for both beginners and experienced users.</li><li>【Exceptional Performance】Engineered for high efficiency and effectiveness, this product delivers outstanding results every time. Its advanced features ensure consistent performance, making it a reliable choice for your needs</li></ul>

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Spark Plug Tester have two testing holes, you can test two spark plugs meanwhile and and if you suspect any spark plug works improperly you could compare and test to make accurate judgment. adjustable double hole car spark plug tester Ignition Plug Analyzer Diagnostic ToolUsage: Test spark plug performance and ignition strengthApplication Range: 12V Gasoline vehicles car spark plugs Widely Application: 100V-240V input voltage . Spark Plug Test principle: In automobile ignition system, the high-voltage ignition coil generates a high-voltage (10000 volts or more), and the spark plug diverts it form high -tension ignition coil into the cylinder engine, spark between the spark plug electrodes will ignite the mixture. The JF109 could tell the good spark plugs from the bad by the strength of the spark. Spark Plug Tester Using Note: 1. Please Turn Off Power before you place spark plug 2. The Spark Plug Tester is a high-voltage , so do not touch spark plug with hand at work to avoid danger. Spark Plug Tester User Manual: 1.Place the Spark Plug into tester hole 1 or 2; If you want to compare the new spark plug and old one, place new spark plug into hole 1 and the old on into hole 2 2.Connect to power supply 3.Turn the key 4 clockwise to turn on tester, indicator 3 will light up, tester is now working at 1000rpm/min. 4. Again turn the key 4 clockwise,you can adjust the working frequency between 1000rpm to 6000rpm/min.The higher the frequency, the stronger the spark strength. Packing List 1 x Spark Plug Tester Main Unit 1 x Power supply connector 1 x Gasket 1 x User manual

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