Inline Ignition Spark Tester


  • Checks whether there is high tensionspark potential at the spark plug
  • "˜"˜Hands free"™"™ operation means no risk of electric shock to user
  • Ideal for modern vehicles with sensitiveelectronics
  • 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.