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RE: [APD] low-range pH test kit recommendation needed
I bought the pHep5 a few weeks ago and I really like it.
Years ago I used higher end pH meters at work and the pHep5 seems to work
just as well for aquarium use.
I had 2 low range and 2 high range kits before I bought the meter and I
really couldn't accurately tell what my pH was. I was targeting 7.2 pH which is at
the top end of the low range kits and the bottom end of the high range kits.
>>>My pens seem to last forever, that way (at least until I drop them in the
tank!).<<<
The pHep4 and 5 are both advertised as waterproof and that they float.
>>>I don't know how often you have to replace the electrode, but it likely
winds up being less expensive than a test kit over the long run.<<<
One of the reasons I bought the Hanna pHep 5 was that both the 4 and 5 have
replaceable electrodes. They cost $24.50 from Grainger - The meters from
Grainger cost pHep4 $59 pHep5 $69.
The only difference I saw between the two models was the accuracy. pHep4 .1
- pHep5 .01
Bill
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