GRANDI Spark Plug Wire Ignition Coil Test Pen, High-Pressure Cylinder line Spark Plug Tester, High Voltage Ignition Tester, Engine Ignition System Diagnostic Tool, Uniersal for Cars (Multicolored)

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Features

• Function: This spark plug tester can be used for spark plug testing, high-voltage line testing, and ignition coil testing. It can directly determine whether the spark plug is working properly from the light indication of the test pen. Test spark plugs, spark plug wires and coils without piercing the wires.
• Product Details: The length of this car ignition test pen is 4.84 "/123 mm. The outer casing is made of ABS material, which is durable and has stable insulation to avoid shock. The LED light indication is always transparent and visible, and the indication status can be seen in dim environments.
• Excellent Design: The car ignition test pen can be used in both the ignition system and the circuit breaker. The grooved end makes the contact area between the wire and the instrument larger, and the high-brightness bulb makes the measurement results easier to observe.
• How to Operate: With the engine started, place the grooved end of the test pen on the spark plug wire. If the light bulb flashes, it means the spark plug wire is transmitting the spark plug signal.
• Easy to Carry: This testing tool adopts a pen clip design, which is mini and compact, easy to carry and can be clipped in your pocket. Great for mechanics, personal maintenance. It provides you with a convenient, time-saving, safe and reliable fault diagnosis method.

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