⚡Spark Plug Tester with Dual Test Holes Plug:110V-US Material: Polyester

Material: Polyester

1×Double Head Ring

so you don’t have to worry about rust or corrosion

DDR3 Capacity: 64G

⚡Spark Plug Tester with Dual Test Holes Plug:110V-US Material: PolyesterFEATURES DUAL HOLE SIMULTANEOUS TESTING: Allows simultaneous testing of two spark plugs, enabling quick comparison and diagnosis of ignition issues in multiple cylinders. ADJUSTABLE WORKING FREQUENCY: The adjustable frequency range (up to 6000 RPM) accommodates different engine types and conditions, ensuring accurate testing across various vehicles. PROTECTIVE COVER DESIGN: Features a robust protective cover that shields users from potential sparks