EFFECT: Engine spark tester is a must have diagnostic tool for any engine with a spark plug and can quickly and easily diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system.
HIGH-QUALITY MATERIAL: High temperature resistant wire, high-quality rubber sheath, it is perfect to work in high and low temperature environments.
LIGHT INDICATOR: The light indicator shows the color of the spark very clearly so you can identify a weak pack.
EASY TO USE: Connect the tester between the spark plug and the plug wire, and if a spark is being sent, the tester will mirror the spark and light up.
VERSATILE: Works with all vehicles that have a spark plug, even small engine car, car, motorcycle, lawn mower, boat motor, chain saw, small & big internal/external engines and more.