INLINE IGNITION SPARK TESTER
Checks whether there is high tension spark potential at the spark plug
“˜”˜Hands free”™”™ 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.