Double Hole Spark Plug Tester 12V Diagnostic Tool 0-6000 RPM

Check spark plugs quickly and compare ignition performance with one compact spark plug tester. The double hole design lets you test two plugs side by side, making engine troubleshooting faster and easier.

Built for cars, motorcycles, speedboats, motorboats, and cropper equipment, this tester supports spark plugs up to 13mm. A stable technical chip, enhanced resistance coil, and 0-6000 rpm/min range help you inspect spark strength with more confidence.

Spark Plug Testing Made Simpler

✅ Find weak or faulty spark plugs sooner during ignition diagnosis.

✅ Compare two plugs at once to spot performance differences faster.

✅ Test common plugs up to 13mm for broader vehicle compatibility.

✅ See ignition behavior across 0-6000 rpm/min for clearer troubleshooting.

✅ Get steady operation from the technical chip and enhanced resistance coil.

✅ Start testing right away with the included 2A power supply, plug, and user manual.

With plastics construction and a 0.35 weight, it is easy to place on your bench while testing. The unit supports 220V/110V input for flexible workshop use.

Compare two spark plugs side by side.

Bench-friendly size fits compact workspaces.

Dual test holes support faster checks.

Clear layout makes operation easier.

Designed for spark plugs up to 13mm.

Useful for ignition troubleshooting tasks.

Stable testing supports clearer comparisons.

Works for car and motorcycle spark plugs.

0-6000 rpm/min range aids diagnosis.

Includes the power plug for setup.

User manual is included.

Test spark strength faster and troubleshoot ignition issues with confidence.