Hey guys, so I'm about to hop back in and order some 60 Day Wonders. Well, I figured I'd go ahead and try to spring for a good tandem ph/tds meter. After looking around Amazon, I found: http://www.amazon.com/GroChek-pH-TDS-Temp-Combo/dp/B0095Z1QX6/ref=sr_1_45?s=lawn-garden&ie=UTF8&qid=1376158145&sr=1-45&keywords=ph+meter Does anyone have any experience with this one? It's Hanna, so I figure it would probably be decent enough (ballast is not digital).
I don't have any experience with that meter, but I have two Bluelab Guardian meters, and will highly recommend these to anyone. http://www.amazon.com/Guardian-Monitor-Combo-pH-Temperature-Conductivity/dp/B00B7QNVZC
Those are some serious pH meters. I think the one I just received in the mail totaled around $12 if that. I hope its accurate.
I use these http://www.amazon.com/Water-testing-Meter-ppm-temp/dp/B007HB5WSK/ref=pd_sim_sbs_lg_5 along with bluelab handhelds as a doublecheck. Works well and can be found for under $100 on Ebay