Feature

●Premium Materials: The probe of this spark tester is made of high quality plated shaft, the optical housing is made of environmental friendly acetate plastic, and rubber straight jacket and cable. High quality materials are resistant to rust and corrosion, even in high and low temperature environments.
●Quick Problem Diagnosis: The Spark tester is an excellent tool for quickly and easily diagnosing ignition and finding engine problems and defects. Can also check spark plug connections, contact points, cables and other bad problems.
●Easy to Use: Easily determine which cylinder is causing issues with this spark plug test light; Simply connect the spark detector spark plug tool between the spark plug and the plug wire then start the engine; If sparks are being sent, the in line spark tester will mirror the spark by lighting up; If checking a no start condition, have a friend crank the engine so you can watch for indications of a spark.
●Light Indication: The product through the spark plug engine ignition tester indicator light display, determine which cylinder is causing the problem, and trace to the determined cause. Remove the spark plug wire after turning off the engine. Attach a black connector to the spark plug and insert the metal end of the tester into the spark plug wire. After starting the engine, if the ignition circuit has been completed, the bulb will flash.
●Perfect For Your Vehicle: From small engines like motorcycles and lawn mowers to cars, trucks, boat motors, this small engine spark plug tester tool works for all internal and external combustion engines that use spark plugs. Spark plug tester apply to any household, business, mechanic, industrial and commercial spark plug use in engine.


Description

Notice:

Testers light up to indicate testing result.

Brightness of the light indicates the quantity of the spark.

If youre testing in bright lighting conditions and not getting the right result, try again in a less bright environment.

Another thing to try is to use the tester on another engine that you know to be good (under similar lighting conditions), and compare that flash to the one on your vehicle.