Spark Plug Tester | 13mm Double Hole Diagnostic Tool | 12V for Car & Motorcycle Engines

This spark plug tester helps diagnose ignition system issues in cars and motorcycles. It operates on 110V/220V AC and outputs 12V DC for testing. The unit features two 13mm test holes, letting you com...
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Questions about this product
- Will this tester work with any type of spark plug?
- This tool is designed for standard automotive and motorcycle gasoline engine spark plugs. It features 13mm test holes, so your plugs must fit this size to work. It won't work on diesel glow plugs.
- How do the double holes help me diagnose ignition issues?
- The double-hole setup lets you test a new spark plug right next to your old one. You can visually compare the spark strength of both plugs at the same time. This helps you quickly spot if one isn't working right.
- Can I test how the spark plug performs at higher engine speeds?
- Yes, you can simulate different engine conditions using the adjustable test frequency dial. This lets you mimic various RPM levels to see if the plug misfires at high speeds. Just make sure you don't exceed the safe operating limit of 50°C.
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