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.

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 Note

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.