ITEM NAME:Car Adjustable Engine Ignition Spark Plug Tester Diagnostic Test Tool Black Description: - Function: A must have diagnostic tool for any engine with a spark plug, can quickly and easily diagnose whether the car ignition system is working properly. Avoid fire, the ignition coil burned out and so on. - Easy to Test: According to spark color and flash over distance to determine the quality of the coil; The normal spark distance is 1cm, and the spark shape is straight with violet blue color. - Safe In Use: Alligator clip securely fastens to ground, designed to prevent high energy sparks arching directly to any ground. - Adjustable: Simply connect the tester between the spark plug and the plug wire, screw assembly adjusts spark gap quickly and easily. - Widely Application: Suitable for all internal & external combustion engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers, generators etc. Specification: - Application: all cars spark plug and ignition system - Function: to test whether the car ignition system is working properly - Color: transparent + black - Material: ABS plastic + metal - Length: about 14cm - Operating temperature: -50-80 (℃) - Adjustment range: 0-2.5CM - Power supply voltage: 220-240 (V) - Spacing setting: 0.8-1.5 cm Package Included: 1 Piece Spark teaser 1 Piece Ground lead.Function: A must have diagnostic tool for any engine with a spark plug, can quickly and easily diagnose whether the car ignition system is working properly. Avoid fire, the ignition coil burned out and so on.