Lisle Spark Tester

AAA Industrial Supply Verified independent store

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Tests Spark Plugs, Spark Plug Wires and Coils Without Puncturing the Wire. With the engine running, place the grooved end of the tool over the plug wire. The bulb will flash to ind icate spark. *Will work on magnito plugs (small engine plugs) *** Bulb is not replaceable! *Will handle all voltage requirements Show more