Fuerdi Ignition Spark Plug Tester Wire in-line Diagnostic Tools Automotive Auto Detector Coil Ignition System Test for Automotive, Car, Lawnmower, Small & Big Internal/External Engines

Easy to use: Troubleshoot spark plug connections quickly Use this ignition spark tester to check the condition of the ignition system at each cylinder without going to expensive mechanics. The spark tester connects between the spark plug and spark plug wire in seconds to troubleshoot dirty spark plug connections, defective points and bad cables or connections. 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 -Test for no spark condition -Essential for trouble shooting all internal combustion engines -Tests for lack of spark condition -Easily test ignition circuit continuity at each cylinder -Connects between spark plug and spark plug wire -Indicator light flashes when circuit is working -Great for troubleshooting any internal combustion engine -Find dirty spark plugs, defective poin