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ORCHID DISCUSSIONS
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Scientific Matters
What is most accurate PH test
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05-20-2013, 08:49 AM
orchidsarefun
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Join Date: Oct 2011
Zone: 5b
Location: Chicagoland
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whats wrong with something like this for occasional testing ? I mainly want to see if my fertiliser mix is changing PH too drastically.
Neewer New Mini Digital Pen Type PH Meter PH-009 I Multimeter Tester Hydro: Amazon.com: Industrial & Scientific
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05-20-2013, 09:24 AM
DavidCampen
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Location: Southern California, Los Angeles
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Quote:
Originally Posted by
orchidsarefun
whats wrong with something like this for occasional testing ? I mainly want to see if my fertiliser mix is changing PH too drastically.
Neewer New Mini Digital Pen Type PH Meter PH-009 I Multimeter Tester Hydro: Amazon.com: Industrial & Scientific
I would suggest spending 3X as much to get one with an actual brand name on it and 2 point calibration. You will also want calibration solutions.
Hanna Instruments HI 98107 pHep pH Tester, with +/-0.1 Accuracy: Amazon.com: Industrial & Scientific
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05-20-2013, 11:16 AM
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Quote:
Originally Posted by
orchidsarefun
whats wrong with something like this for occasional testing ?
"you get what you pay for", or as the romans said,
Caveat emptor
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