Pack-1 Car Ignition Test Pen, High-Voltage Line Coil Spark Plug Detector with Bulb, Universal Car Spark Plug Test Pen, Pen Type Spark Plug Tester Coil Diagnostic Tool for Cars (Multicolored)

dawfall Pack-1 Car Ignition Test Pen, High-Voltage Line Coil Spark Plug Detector with Bulb, Universal Car Spark Plug Test Pen, Pen Type Spark Plug Tester Coil Diagnostic Tool for Cars (Multicolored)

• Unique Design: The grooved end of this car ignition test pen makes the contact area between the wire and the instrument larger, making the test more accurate. High brightness bulb makes measurement results easier to observe. This testing tool adopts a pen clip design, which is mini and compact.
• How to Do It: The car ignition test pen can be used in both the ignition system and the circuit breaker. With the engine started, place the notched end of the instrument over the spark plug wire. If the bulb flashes, the spark plug wire is carrying the spark plug signal.
• Function: This test pen is used to detect the working condition of the engine spark plug. It can help determine whether the engine is igniting properly and whether the spark plug needs to be replaced. This instrument can be used in both ignition systems and circuit breakers.
• Application: The spark plug tester can be used for spark plug testing, high-voltage line testing, and ignition coil testing, helping you clearly and intuitively understand the status of the ignition coil or high-voltage line. It provides you with a convenient, time-saving, safe and reliable fault diagnosis method.
• Product Details: This inspection tool uses a pen clip, which is easy to carry. The length is 4.84"/123mm, lightweight and mini. It also comes with a finger guard to avoid shock. It is suitable for most mechanics or DIY repairs and is a must-have vehicle inspection tool tool.