1Pcs Inline Spark Plug Tester, Small Motor Vehicle Engine Ignition, Armature Diagnostic Detector, Suitable for Automobile, Motorcycle, Lawn Mower Internal and External Engines

Product Specifications:Material: Stainless steel + plastic[Color] : BlackUse The Tutorial:1. Turn off the engine and remove the spark plug wire.2. Connect the black connector to the spark plug.3. Insert the test metal end into the spark plug wire and try to start the engine.4. If the bulb will flicker, the ignition circuit is complete.Hint:If you do not get correct results in bright lighting conditions, try again in a less bright environment.If the ignition spark is sent to the cylinder, the lamp in the tester will glow and reflect the spark. The brightness of the lamp indicates the number of sparks, and the pulse and brightness are related.

• 【High Quality Material】This product adopts high quality electroplating shaft, rust and corrosion resistance. Rubber protective sheath, high temperature resistant wire, well insulated, tightly bonded to connector. The lamp shell is made of environment-friendly acetate fiber plastic, which has no impact on the low temperature environment.
• 【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】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.
• 【Wide Application】Spark plug tester is suitable for all internal and external combustion engines, like cars, trucks, motorcycles, lawn mowers, snow blowers, trimmers, generators and so on can be used. It's a must-have item in personal and auto stores.
• 【Premium Service】Our spark plug ignition tester can quickly and easily diagnose ignition, check for engine problems and rule out defective cables and contacts, etc. If there is any problem with our products, please contact us immediately and we will try our best to solve the problem for you.