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MagnaCartaHolyGrow
That's what's up mugz I am also gettin that same led let me know how they are asap. I am go for two of those in my cab to try out. Also I would jus wait and see how they do. I got a 10 ph pen off amazon and it works great only had it for a month only calibrated once but it's still new so well see how long it works. But yes they work