Car Spark Plug Tester Related car key programming tool & Car Spark Plug Tester Related OBD2 Diagnostic Tools

Car Spark Plug Tester with Adjustable Double Hole Detector Ignition Plug Analyzer

Item No. COBD21857 Dual Hole Car Spark Plug Tester Detector 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.To Test spark plug performance and ignition strength, apply to 12V Gasoline vehicles car spark plugs.