Ongfuwu Inline Spark Plug Tester, Car Straight Boot Engine Ignition Tester, Small Internal External Engine Armature Diagnostic Detector Tool for Motorcycle Lawn Mower, Easy to Use

Ongfuwu Inline Spark Plug Tester, Car Straight Boot Engine Ignition Tester, Small Internal External Engine Armature Diagnostic Detector Tool for Motorcycle Lawn Mower, Easy to Use

• 【Trouble Shooting】: Ignition misfires can lead to engine failure or loss of power, which will affect driving and safety. This spark plug ignition tester enables quick and easy diagnosis of your car's ignition and engine problems or defects, as well as checking for poor spark plug connections, contact points, cables and other issues.
• 【Indicator Light】: It is designed with an indicator light that provides simple and clear information. You can easily know the spark and engine status by seeing how the light flashes in different ways. A strong bright white light indicates a good spark, while a jumpy, dull color indicates a weak coil or plug.
• 【Reliable Material】: The plastic housing is hard and impact resistant, and the metal connector is wear-resistant and durable. The built-in wires are made of pure copper with good conductivity and can withstand high voltage currents. The rubber protective cover is well insulated and safe to use.
• 【How to Use】: First, turn off the engine and remove the spark plug wire. Then, connect the black connector to the spark plug. Finally, insert the metal end of the tester into the spark plug wire. When the engine starts, the indicator light will flash if the ignition circuit is on.
• 【Widely Used】: The inline spark plug tester is suitable for various internal and external engines, broadly applied to cars, trucks, motorcycles, lawn mowers, snow blowers, trimmers and so on. It is an essential diagnostic tool for vehicle engines and is a must-have for individuals as well as auto stores.