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SP61030
Specials, Engine Tools
FEATURES:
Checks whether there is high tension spark potential at the spark plug
<145>‘<145>‘Hands free<146>’<146>’ operation means no risk of electric shock to user
Ideal for modern vehicles with sensitive electronics
Easy to use - Remove rubber boot from spark plug, insert inline tester & place tester boot on plug.
Turn the engine over - Tester light will glow if ignition spark is being sent to the cylinder.