Spark plugs need to be checked regularly and replaced in time, in order to save time, this spark plug tester will help you check the performance of spark plugs more quickly, and replacing spark plugs regularly to help your trip go more smoothly.
The features of our spark plugs tester as followed:
Easy to use
Dual-hole, clearer comparison
0-6000RPM Adjustable working frequency
Long lasting
Comes with an instruction manual and spacers (to stabilize the placement of the spark plug) to help with use