HT-Spark-Check-Kit-Sealey-VS5271-Ideal-for-coil-pack-diagnostics-on-modern-engines-These-two-tools-allow-the-technician-to-identify-ignition-faults-without-unnecessary-component-changing-Used-to-check-the-condition-of-the-ignition-coil-or-coil-pack-The-spark-checker-allows-the-condition-of-the-spark-to-be-checked-The-coil-plug-extension-allows-for-the-use-of-induction-couplers-to-diagnose-engine-faults-on-engines-that-have-no-HT-leads-HT-Spark-Check-Kit