Easy420forme
Active Member
yes Gumball, that is what I was using before the pen. I compared the results and the solution is right on target with the pen.That's exactly why I haven't got a pen yet, don't want crap. I want to get one while I still have the liquid solution so I can compare the accuracy. The liquid may not be as precise, like to the tenth, but its always accurate that's for sure.
http://www.pulseinstruments.net/index.asp?PageAction=VIEWPROD&ProdID=2884
This is the pH2, but I have the pH1. looks identical.