Ignition / spark tester

The listing

The Ram-Pro Engine Spark Tester Probe is a must have diagnostic tool for any engine with a spark plug, & can quickly and easily diagnose ignition/engine outboard motor issues or a fault in the fuel delivery system HOW TO USE: Simply connect the tester between the spark plug and the plug wire, if spark is being sent, the tester will mirror the spark and light up - Find dirty spark plugs, defective points, bad cables or connections, etc. DIMENSIONS: 6" boot/cable, 5" shaft/light housing; 2.2 oz. DESIGN: Nickel Plated Shaft, Double ended flexible tool offers a straight boot -– Internal bulb lasts for years, but is replaceable through transparent housing MUST HAVE: When engine won't start, gives instant answer to 'does it have spark?' - Saves time, frustration and money while also offering a safe secure way to identify spark USE FOR: Essential Troubleshooting for All Internal & External Combustion Engines, cars, trucks, motorcycles, lawnmowers, chainsaws, trimmers, snow-blowers, generators etc. - A must have for any individual, professional mechanic garage and auto shop $12.99 new from Amazon I never used it I'll let the pair of them go for $6