Just wondering for those of you out there that have used many. Im doing a 2 bucket DWC grow and just wondering whats the best quality or cheapest for best quality testers you've used in your days. An all in one would be great just one tester for everything I need for my hydro. Also if im jsut using the basic lucas formula with micro and bloom, do i only need a ph and ppm tester or what do i need? So post away what you've found on the web and link it up if for the rest of us. I appreciate all the input. Thanks
I really like the stuff from Hanna. Good deals and great meters. Here is a great all-in-one pen: Hanna Combo Pen - pH/EC/TDS/Temp. Or for a few less bucks you could get this for pH: Hanna pHep 1 pH Pen and this: Hanna DiST 1 TDS Pen or this: Hanna Primo TDS Tester for TDS.