Amazon Spark Plug Tester Comparison, SHOCKING RESULTS!!!

Amazon spark plug and ignition testers. This was a fun test of all the spark testers I could buy on Amazon. I had no idea spark testing would be so much fun!! Amazon links to all four contestants are below. Stens Tester (Winner!): https://amzn.to/3P5tf2m Lisle 20610 Tester (Red Box): https://amzn.to/3yhRVhP Crazy Gap Tester: https://amzn.to/3vNrj6V Crazy Spark Plug Looking Tester: https://amzn.to/3vNrj6V Mower Mike’s Tool Store: http://www.amazon.com/shop/mowermike Mower MIke Disclosure: The Amazon link above is an Amazon affiliate links. This means that, I do earn a very small commission (at no cost to you) if you click the link and finalize a purchase.