Car Spark Plug Tester upgradelifelongtechnol Ideal for anyone who wants

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Frequency Range: 0~462MHz

Car Spark Plug Tester upgradelifelongtechnol Ideal for anyone who wantsDual hole car spark plug tester detector has two testing holes, you can test two spark plugs meanwhile and if you suspect any spark plug works improperly you could compare and test to make an accurate judgment. Spark tester is widely used and can be used to test 12V Gasoline vehicles car spark plugs (a diameter of 12mm). It is compatible with all spark plug tests for crankshaft engines and motorcycles on the market. The working principle of the spark