Double Hole Spark Plug Tester JFIND 220V 110V 0-6000RPM JF109 PRO Diagnostic Tool

JFIND JF109 Pro 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.

JFIND JF109 Pro adjustable double hole car spark plug tester detector Ignition Plug Analyzer Diagnostic Tool

Usage: Test spark plug performance and ignition strength

Application Range: 12V Gasoline vehicles car spark plugs

Widely Application: 100V-240V input voltage .

JFIND JF109 Pro Spark Plug Test principle: In automobile ignition system, the high-voltage ignition coil generates a high-voltage (10000 volts or more), and the spark plug diverts it form high -tension ignition coil into the cylinder engine, spark between the spark plug electrodes will ignite the mixture. The JF109 Pro could tell the good spark plugs from the bad by the strength of the spark.

JFIND JF109 Pro Spark Plug Tester Using Note: 1. Please Turn Off Power before you place spark plug 2. Please make sure the shield is fully closed before turning on the power 3. The Spark Plug Tester is a high-voltage detector, so do not touch spark plug with hand at work to avoid danger.

JFIND JF109 Pro 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.Make sure the shield is fully closed 3.Connect to power supply 4.Turn the key switch 4 clockwise to turn on tester, indicator 3 will light up, tester is now working at 1000rpm/min. 5. Again turn the key switch 4 clockwise,you can adjust the working frequency between 1000rpm to 6000rpm/min.The higher the frequency, the stronger the spark strength.

Packing List： 1 x JFIND JF109 Pro Spark Plug Tester Main Unit 1 x Power supply connector 2 x Gasket 1 x User manual