CMTOOL Spark Plug Tester Kit, Dual Holes Automotive Spark Plug Tester Tool 0 6000rpm Working Frequency Motorcycle Car Test Kit For 12v Gasoline Vehicles I4987990306

【Upgraded Test Hole—Knob Type】Compared with the fixed test holes of other spark plug testers, the upgraded knob-type test hole of this tester can be adjusted to meet the testing needs of more spark plugs, ensuring good contact and accurate testing between the spark plug and the tester. It also reduces the time and operation steps of testing spark plugs one by one, greatly improving the efficiency of detection. 【Power and High-Voltage Indicator Lights】The power indicator light intuitively indicates whether the spark plug tester is powered on. When the spark tester generates high voltage electricity and applies it to the spark plug, the high-voltage indicator light will light up, reminding the operator to be vigilant during the test and avoid contact with the high-voltage part. The protective cover can also prevent dust and moisture from entering the interior of the spark plug tester to avoid affecting the test results. 【Easy To Operate】Insert the spark plug into the test hole, cover the protective cover, plug in the power adapter, and adjust the working frequency.