Dependable Quality: Adopting a high-quality plastic shell and sturdy metal shaft, our spark plug tester offers high hardness, strong impact resistance, and corrosion resistance. The internal pure copper wire can withstand high-voltage current and is durable for use
Quick Diagnostics: This engine ignition checker can quickly and easily diagnose and find the problems with spark plug connections, contacts, cables and more. It helps users to quickly locate faults, dramatically shorten troubleshooting time and improve repair efficiency
Handy Operation: First, turn off the engine and remove the spark plug wire. Then, connect the black connector to the spark plug and plug the metal end of the tester into the spark plug wire. Finally, start the engine, and if the light flashes, the ignition wire is intact
Wide Application: This armature diagnostic detector for internal and external combustion engines is an essential diagnostic tool for engine. It works on most engines for cars, motorcycles, trucks, lawn mowers, trimmers, snow blowers, chainsaws, and more
Compact and Portable: Our inline spark plug tester is compact and lightweight, so it doesn't take up too much space and is easy to carry. With it in your toolkit, you can perform a spark plug test at any time, whether you're in the workshop or outdoor