The dual-hole car spark plug tester has two test holes, so you can test two spark plugs at the same time. If you suspect that a spark plug is not working correctly, you can compare and test to get an accurate assessment.

Used to test spark plug performance and ignition strength, suitable for spark plugs in 12V gasoline vehicles.
Adjustable dual-hole car spark plug tester, glow plug analyzer, diagnostic tool


Advantages of dual-hole spark plug tester for cars:

The dual-hole car spark plug tester has two test holes, so you can test two spark plugs at the same time. If you suspect that a spark plug is not working correctly, you can compare and test to get an accurate assessment.


Purpose: to test spark plug performance and ignition power



Scope of application: spark plugs for 12 V gasoline vehicles.


Principle of car spark plug testing:

In a car's ignition system, a high-voltage ignition coil generates a high voltage (over 10,000 volts), which is converted into high electrical voltage through the spark plug.

The high-voltage ignition coil enters the engine cylinder, sparks are generated between the spark plug electrodes, and the mixture is ignited. The detector can determine

The quality of a spark plug depends on the strength of the spark.


Precautions when using the car spark plug tester:

1. Turn off the power before inserting the spark plug

2. The spark plug tester is a high-voltage detector. Do not touch the spark plug with your hands during operation to avoid danger.


User manual for car spark plug tester:
1. Insert the spark plug into test hole 1 or 2. If you want to compare the new spark plug with the old spark plug, insert the new spark plug into hole 1 and the old spark plug into hole 2.

2. Connect the power supply

3. Turn key switch 4 clockwise to turn on the tester, indicator light 3 will light up and the tester will run at 1000 rpm.

4. Turn key switch 4 clockwise again to adjust the operating frequency between 1000 rpm and 5000 rpm.

The higher the frequency, the stronger the spark intensity.


Product parameters of the spark plug tester for gasoline vehicles:

L size 'host: 145*85*60mm

Host weight: 220 G (excluding power adapter)

Power adapter: 100-240 V AC input / 12 V 1 A DC output.


The test set Spark Plug Tester for 12V gasoline vehicles includes:


Spark plug tester 1 pc

1 power adapter