Car Spark Plug Test Pen Diagnostic Tool

1 Pack Car Spark Plug Test Pen is a portable high voltage line cylinder line tester that comes in silver & purple color. It is a universal pen type vehicle engine indicator ignition system spark plug coil diagnostic tool.

Test Function of this car spark plug test pen allows you to directly determine whether the spark plug is working properly. It can quickly test the working condition of spark plugs, spark plug wires, and coils without the need to pierce the wires, and it is suitable for use in ignition systems and circuit breakers.

The Pen Design of this car spark plug test pen features a pen-shaped design. The grooved end of the pen increases the contact area between the wire and the instrument, while the high-brightness bulb makes it easier to observe the measurement results.

To Use this car spark plug test pen, start the engine first and then place the notched end of the pen over the spark plug wire. If the bulb flashes, it indicates that the spark plug wire is transmitting the spark plug signal, making it an ideal tool for mechanics and personal maintenance.

The package includes a car spark plug test pen with a length of 4.84 inches/123mm. It is mini, easy to carry, and can be clipped into your pocket for convenience.

This Universal Accessory car ignition test pen offers a convenient, time-saving, safe, and reliable method for diagnosing faults. The LED light indication is always transparent and visible, allowing you to clearly determine the status of the vehicle even in dim environments.

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