Must-have diagnostic tool for any engine with a spark plug. Simple to use just remove rubber boot from spark plug, insert tester & place tester boot on plug. Turn the engine over if ignition is being sent to the cylinder, light in tester glows. Great time and frustration saver with cars, motorcycles, boats, chainsaws, lawn mowers & more. The spark plug base hole of 12MM, is wider to be compatible with as many spark plugs as possible.

Fit for: 12V Gasoline vehicles car spark plugs
Functions: Test spark plug performance and ignition strength
Package includes: 1pc x Spark plug tester;1pc x Power Adapter
Placement on Vehicle: Left
Fitment Type: Direct Replacement
Type: Spark Plug Tester
Brand: Unbranded
Warranty: 30 DAYS
Color: Black