Spark Plug Tester Pen, Car Spark Ignition Coil Tester with High-Brightness Light Bulb, Universal High Voltage Wires Coil Test Pen, Automotive Faults Diagnostic Tool for Most Cars (Multicolored)

UQWU Spark Plug Tester Pen, Car Spark Ignition Coil Tester with High-Brightness Light Bulb, Universal High Voltage Wires Coil Test Pen, Automotive Faults Diagnostic Tool for Most Cars

• 【Precise Testing】: This spark plug tester pen can be used for testing spark plugs, high-voltage lines, and ignition coils. By observing the indicator light on the pen, it allows for a precise determination of whether a spark plug is functioning correctly—without the need to pierce the wires—making the testing process both safer and faster
• 【Premium Materials】: This car spark ignition coil tester is crafted from high-quality ABS material, offering excellent insulation properties. It features a built-in high-brightness LED indicator that allows you to clearly assess the operational status of the engine's ignition system, even in dim lighting conditions, ensuring long-lasting durability
• 【Lightweight and Portable】: This high-voltage coil test pen features a pen-clip design that is lightweight and compact, allowing it to be clipped to a pocket for easy, on-the-go carrying. With its sleek and stylish appearance, it is an ideal tool for mechanics and DIY repair enthusiasts, enabling convenient troubleshooting and enhanced work efficiency
• 【Usage Steps】: 1. After starting the engine, place the grooved end of the test pen against the spark plug wire. 2. If the indicator light flashes, it indicates that the spark plug wire is transmitting a spark signal
• 【Product Specifications】:This car spark plug test pen is about 4.84 inches long and has three parts: a rose-red tip for detection, a middle section for viewing the indicator bulb, and a clip end that acts as a finger guard. It is suitable for spark testing on traditional, dual-spark, and single-spark coils, as well as on alternators, cooling fans, fuel injectors, relays, solenoid valves, and other electrical components