✔✔✔Excellent performance: you can adjust the working frequency between 1000 rpm and 5000 rpm/min. The higher the frequency, the stronger the spark resistance. ✔✔✔Product effect: - To test the performance of the spark plug and ignition strength, apply them to spark plugs of 12V petrol vehicles.

Fit for: 12V Gasoline vehicles car spark plugs
Functions: Test spark plug performance and ignition strength
Package includes: 1pc x Spark plug tester;1pc x Power Adapter
Placement on Vehicle: Left
Fitment Type: Direct Replacement
Type: Spark Plug Tester
Brand: Unbranded
Warranty: 30 DAYS
Color: Black