- Connects in-line between spark plug and spark plug wire
- Shows a duplicate view of the ignition spark
- Technician can visually check condition of each cylinder
- Frequency and intensity of flash pattern indicates whether there is an ignition or fuel delivery system problem. Flash can be seen in bright sunlight
- Clear plastic body can withstand rough use and resists automotive chemicals
- Flexible wire protected by mechanical strain relief
- Instructions included
- Weight: 1.00 LBS
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- Weight: 1.00 LBS
