Adjustable High Energy Ignition Spark Plug Tester Pick Up Coil Diagnostic Tool Description: Features: 1. It is the quickest way to test for no-start conditions. 2. High visibility white lettering makes it easy to read the gap measurement from 0 to 40k. 3. The round knob provides easy gap adjustment and comes with a shielded clip securely fastens to ground. 5. According to spark color and flash over distance to determine the quality of the coil. 6. Can intuitively convenient to understand the operation of the ignition coil. 7. Avoid fire, the ignition coil burned out and so on. Specifications: Material: ABS + Metal Color: Black + Red Total Length: 11cm / 4.33" Diameter: 22mm / 0.87" Cable Length: 520mm / 20.47" Package Weight: 95g Package Included: 1 x Ignition Coil Tester Note: 2. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.