Review on 🔥 JND Premium Ignition Spark Tester: The Fool-Proof Engine Diagnostic Tool by David Tadder

I bought and tested this spark tester, when it arrived everything looked fine. Due to my work schedule, it took me several weeks to try to use it. The rubber boot portion was too long and did not stretch enough to use with a Champion spark plug. Once I cut the trunk where it worked --- even the lightbulb doesn't work. The return period had already expired, so I contacted the seller - Vivitool - to buy him another bulb. They interrupted me via email and asked me to speak to Revane about it. Wow I tried to buy another bulb from them instead of getting one for free! Buyers beware of Vivitool!