Operation Step: Step 1: Place the spark plug in the test hole. Step 2: Cover the protective cover. Step 3: Connect the power supply and adjust the working frequency Step 4: Observe the spark plug test status through the protective cover. Specification: Model:12V Gasoline Car spark plug tester Material: Plastic, Metal Volt:12 Volt Analog speed: 0-6000rpm Input:100V-240V AC Size:145x85x110mm Power Supply: 110V/220V Power Adapter: Output DC 12V 1A Usage: Test car spark plug performance and ignition intensity Package Include: 1 x Spark Plug Tester 1 x Power Adapter 1 x User Manual.
