2PCS Inline Spark Plug Testers, Small Armature Diagnostic Detector Tool, Ignition Coil Tester for Engines for Automotive, Cars, Lawnmowers, Small & Big Internal/External Engines

Engine Spark Plug Tester: Spark plug ignition tester can quickly diagnose ignition and engine problems and defects, troubleshooting spark plug connections, contact points, damaged cables wait. This is a practical diagnostic tool for any engine with spark plugs. How to Use: Connect the black skin of the tester to the spark plug and the metal end of the tester to the spark plug coil. After starting the engine, if the ignition circuit has been completed, spark tester automotive light will flash. Materials: The probe of this spark tester is made of plated shaft, the optical housing is made of friendly plastic, and rubber straight jacket and cable. Spark plug tester for small engines will not easily rust and corrode during use. Wide Application: The inline spark plug tester is a must have diagnostic tool for any engine with a spark plug, it fit for all internal and external combustion engines, cars, trucks, motorcycles, chainsaws, trimmers, snow-blowers, generators engines etc. Reliable Choice: We always put the interests of customers first, your satisfaction is our greatest pursuit. Hope we can become your closest partner at the same time. Package includes: 2 x inline spark plug testers