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Note:
Please Turn Off Power before you place spark plug
The Spark Plug Tester is a high-voltage detector, so do not touch spark plug with hand at work to avoid danger.
The higher the frequency, the stronger the spark strength.
User Manual:
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.
Connect to power supply.
Turn the key switch 4 clockwise to turn on tester, indicator 3 will light up, tester is now working at 1000rpm/min.
Again turn the key switch 4 clockwise,you can adjust the working frequency between 1000rpm to 5000rpm/min.
Specifications:
Type: Car Spark Plug Tester
Material: Plastic
Color: Black
Plug: EU US Plug
Input: AC 100-240V
Output: DC 12V 1A
Size:As Picture
Usage: Test spark plug performance and ignition strength
Application Range: 12V Gasoline vehicles car spark plugs
Diameter of Spark Plug: 1cm
Note:
Only suitable for: Spark plug hole inner diameter(Spark plug thread diameter): 10mm Spark plug hole depth(Spark plug thread length): 13mm
Package included:
1 x Car Spark Plug Tester
1 x Power Supply Connector