Spark plug tester, spark plug tester for cars, inline spark plug, inline ignition, suitable for indoor and outdoor lawnmower engines

EASY TO USE: Simply connect the metal end of the tester to the ignition coil and start the engine. If the ignition cable is intact, the spark plug will spark. UNIVERSAL COMPATIBILITY: The small engine ignition coil tester is ideal for lawnmowers, motorcycles, and other small vehicles. EXCELLENT FUNCTION: The spark plug tester is an essential diagnostic tool for any engine with a spark plug. It allows for quick and easy diagnosis of ignition/outboard motor problems or fuel system malfunctions. DESIGN: Nickel-plated shaft, flexible double-ended tool with a straight airflow – the internal bulb is extremely durable. HIGH-QUALITY CONSTRUCTION: The lawnmower spark plug tester is constructed to a high standard and features an excellent protective cover, eliminating any loose wires and the risk of electric shock.