Dual Hole Spark Plug Tester - Automotive Ignition Coil Tool, 0-6000 RPM, 12V Gas

12v dual gas ignition ignition-coil plug spark plug tester tool

High-Quality & Widely Used: The SPT101 Car Spark Plug Tester is designed to evaluate the performance and ignition strength of spark plugs. Note: This spark plug tester is not compatible with very short spark plugs.