Spark Plug Tester – Reliable Tool for Ignition System Diagnosis Key Features: MultiFunction Testing: Designed for quickly and accurately testing spark plugs, voltage wires, and ignition coils. Determine spark plug performance instantly through the builtin LED light indication on the test pen. NonInvasive Operation: Test spark plugs, wires, and coils without piercing or damaging the insulation on the wires, ensuring safe and clean diagnostics. Compact Size: Measures 4.84 inches (123 mm) in length for easy handling and storage. Durable Construction: Outer casing made from robust ABS material for longlasting durability and stable electrical insulation to prevent accidental shocks. Clear Visual Indicators: Transparent LED light housing for easy visibility, even in dimly lit conditions, enabling precise fault detection anywhere. Benefits: Saves Time: Quickly identify ignitionrelated issues without dismantling components or performing complex checks. Portable and Convenient: Pen clip design allows you to carry it in your pocket and keep it accessible for quick use in the workshop, garage, or on the road. Safe and Reliable: Insulated design protects you while testing voltage ignition systems, minimizing risk during operation. How to Use: 1. Start the engine. 2. Place the grooved end of the tester pen on the spark plug wire. 3. If the LED light flashes, the wire is transmitting the spark signal correctly. Practical Applications: Automotive maintenance for both professional mechanics and DIY enthusiasts. Quick roadside diagnosis when dealing with engine misfires or performance issues. Routine engine checks to confirm spark plug and ignition coil functionality before long trips. This spark plug tester is a dependable, compact, and easytouse tool that ensures accurate ignition system diagnostics while protecting both you and your equipment.