Simple to use just remove rubber boot from spark plug, insert tester & place tester boot on plug. Must-have diagnostic tool for any engine with a spark plug. Turn the engine over if ignition is being sent to the cylinder, light in tester glows.
12V Spark Plug Tester 3Holes Ignition Spark Tester Adjustable Height 200~9000rpm
12V Spark Plug Tester Dual Hole Diagnostic Gasoline Car Ignition Analyzer Tool
12V Spark Plug Tester Dual Hole Diagnostic Tool Gasoline Car Ignition Analyzer
12V Spark Plug Tester Gasoline Ignition Coil Test 3 Holes Adjustable 200~9000rpm
12V Spark Plug Tester Ignition Diagnostic Analyser Height Adjustable 200~9000rpm
12V Spark Plug Tester Dual Hole Analyzer & EVAP Smoke Machine Diagnostic Tool
