povtii 2 PCS Inline Spark Plug Tester, Plug-in Auto Straight Boot Engine Ignition Tester, Internal External Engine Armature Diagnostic Detector for Motorcycle Lawn Mower, Car Accessories

povtii 2 PCS Inline Spark Plug Tester, Plug-in Auto Straight Boot Engine Ignition Tester, Internal External Engine Armature Diagnostic Detector for Motorcycle Lawn Mower, Car Accessories

• 【Practical Diagnosing】: This spark plug ignition tester can quickly and easily diagnose ignition and engine problems or defects in your car, reducing engine failures or loss of power caused by ignition misfires. It can also check for bad spark plug connections, contact points, and cables.
• 【Indicator Light】: The spark plug checker has sensitive indicator light. The flashing of the different lights gives an obvious picture of the spark and engine status. In this case, an intense bright white light indicates a good spark, while a jumpy, dull color indicates a weak coil or plug.
• 【Safe & Reliable】: The plastic shell is hard, impact resistant, not easy to break, durable enough. The built-in copper wire has good conductivity and can withstand high voltage current. The rubber protective cover is well insulated, waterproof and dustproof, avoiding electricity leakage and ensuring safety.
• 【How to Use】: First, turn off the engine and remove the spark plug wires. Then, connect the black connector to the spark plug. Finally, insert the metal end of the tester into the spark plug wire. The indicator light will flash if the engine is started and the ignition circuit is on.
• 【Extensive Use】: It is suitable for diagnosing various internal and external engines. And it is widely used in cars, trucks, motorcycles, lawn mowers, snow blowers, trimmers, generators and so on. You can quickly diagnose your car by yourself without going to the repair store, saving time and money.