primitive said:In case anyone wants to research these in the future, I went out of town to the closest BIG hydroshop to compare meters(my local shop only had one that wasn't a pen), and here's what I found:
After comparing three Hanna, one Bluelabs and one Nutradip, I went with the Hanna Combo GroChek, continuous pH, EC, TDS and Temp reading for $189. The auto calibration is very cool. You press a button, it says "use 7.01", you dip it in, it says "OK, use 4.01", you dip it in, it says "OK", boom, done. Much easier than the ones I compared it to, like using an eyeglass screwdriver to manually adjust it to point.
My choice was based partly on that, and that it feels nice and solid, but also influenced by both employees and six customers that filtered in that all had the exact same opinion of the brands; "Hanna is the standard to beat. Bluelabs meters are good, but the electrodes typically don't last as long. Nutradip will not stay calibrated long at all and are almost worse than useless." Hmm. Hanna it is then!
I gotta say, it was also kinda reassuring that a hydro store salesman steered me away from the Nutradip even though it was $50 more than the Hanna I got, and when I asked what the differences are between the three Hanna meters, a $90 difference from cheapest to most expensive, he listed a grip of small differences to consider, then said as far as accuracy and dependability they're all the same. I decided the most expensive wasn't any better for me than the one I bought.
So, in conclusion, I'm very happy with this meter, and if you ever have the misfortune of having to shop in the mid-penninsula I heartily recommend South Bay Hydroponics, good guys and a big enough shop you could drive a forklift around in it.
primitive said:Also, and this may be totally unrelated, roughly 3 out of 5 of my friends cell phones won't work in my house(for years now, long before any growing), but will work at the street corner, 1 house away. Every service but AT&T is usually dead in my house, and outside in front of my house, but fine when you walk a dozen yards or so away.
Any thoughts?
zipflip said:do all digital ph readers need to be callibrated when you buy them? if so then wat ya ned to get or do to callibrate them?
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