Double Hole Car Spark Plug Tester Tool Ignition Tools Automotive Diagnostic Analyzer For 12V Gasoline Vehicle

Feature 1 Car Spark Plug Tester Plug Analyze w Adjustable Dual Hole Ignition Detector2 Design to test spark plug performance and ignition strength3 With two testing holes you can test two spark plugs 4 Apply with 12V Gasoline vehicles car spark plugs 5 Plug and play convenient and asy to use6 Power Adapter Input 100 240V AC Output 12V 1A DC7 Dimension Approx 145 85 60mm Attentions 1 Please turn off power before placing spark plug 2 Do NOT touch spark plug by hand at work to avoid danger How to use 1 Place the Spark Plug into tester hole 1 or 2 2 Connect to power supply 3 Turn the key switch 4 clockwise to turn on indicator 3 light up tester is now working at 1000rpm min 4 Turn the key switch 4 clockwise again to adjust the working frequency between 1000rpm to 6000rpm min 5 The higher the frequency is the stronger the spark strength is Package Included 1 X Spark Plug Tester1 X Power Adapter