Adjustable Ignition Plug Clearance Tester with Window

This tester checks the performance of ignition plugs, ignition coils, and high-voltage leads. It features an adjustable clearance gauge with a knob to test different ignition strengths and voltage levels. A transparent observation window allows safe viewing of the ignition pattern. It includes a high-voltage connector and an earthed alligator clip with cable. The body is sturdy black with a shielded rubber sleeve and coiled lead.