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Vdiagtool Car Spark Plug Tester Automotive Diagnostic Tool Double Hole Detector 12V Gasoline Vehiles Ignition Analyzer

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1.Car Spark Plug tester diameter of the hole 10.5mm;

2.The product cannot be tested by a single hole, it is the correct way to use two holes together.

How is your spark plug performance?

The function of the spark plug is to introduce tens of thousands of volts of high-voltage electricity into the combustion chamber and generate electric sparks to ignite the mixture.

In cooperation with the ignition system and the fuel supply system, make the engine largely determines the performance of the engine.

So now,you need A Spark Plug Tester for test!!

Four Advantages Of The Car Spark Plug Tester

1.Adjustable&Double Holes

2.Insert Now And Use Now

3.Convenient Power

4.Easy For Use

Car Spark Plug Tester Detector with Dual Hole Advantage

Dual Hole Car Spark Plug Tester Detector have two testing holes, you can test two spark plugs meanwhile and and if you suspect any spark plug works improperly you could compare and test to make accurate judgment.

Pls Note:The diameter of the two holes is 1.05-1.1cm

Car Spark Plug Tester User Manual

1.Place the Spark Plug into tester hole 1 or 2; If you want to compare the new spark plug and old one, place new spark plug into hole 1 and the old on into hole 2

2.Connect to power supply

3.Turn the key switch 4 clockwise to turn on tester, indicator 3 will light up, tester is now working at 1000rpm/min.

4. Again turn the key switch 4 clockwise,you can adjust the working frequency between 1000rpm to 5000rpm/min.

The higher the frequency, the stronger the spark strength.

Car Spark Plug Tester Using


1. Please Turn Off Power before you place spark plug

2. The Spark Plug Tester is a high-voltage detector, so do not touch spark plug with hand at work to avoid danger.

Shipping & delivery

Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectations.

How do you ship packages?

Currently, we offer shipping across the U.S. only. Packages from our U.S. warehouse are shipped through USPS.

How long does shipping take?

All orders require 1 business day processing time. The estimated delivery time is 1-3 business days.

Do you provide tracking information?

Yes, you will receive an email with your tracking information.

Will my items be sent in one package?


If you have any other questions, please contact us and we will do our best to help you out.

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