Full test video link: https://youtu.be/far6c9XkUgc, thanks for watching!

What is the function of the spark plug?

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. Working with the ignition system and the fuel supply system to make the engine work, it largely determines the performance of the engine. Spark plugs are the daily consumables of automobiles. As the core of automobile engines, the performance of a spark plug can almost directly determine the performance of a car, so you should always check the spark plug of your car.

Double-hole spark plug tester

- Easy to operate, plug and play, economical and useful tool. - Two testing holes, you can test two spark plugs meanwhile. - With indicator, show the status of the spark plug, more intuitive. - This tester is designed to test spark plug property and ignition strength. - If you suspect any spark plug works improperly you can compare and test to make accurate judgment. Usage: Test spark plug performance and ignition strength Application Range: 12V Gasoline vehicles car spark plugs

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.

Specification:

According to spark color and flash over distance to determine the quality of the coil Can intuitively convenient to understand the operation of the ignition coil Alligator clip securely fastens to ground Screw assembly adjusts spark gap quickly and easily Avoid fire, the ignition coil burned out and so on Length: 11.5cm Diameter: 2.2cm Cable length: 52cm Color: Black