The Planted Tank Forum - View Single Post - Arduino Diy pH probe
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Old 01-27-2013, 10:51 PM   #6
Jeffww
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For me it was cheaper to buy a few packets of callibration fluid than those huge bottles that go bad after 6 months anyways. Also It ended up much cheaper buying a bnc breakout, stamp, and probe and packets separately (around 70 dollars). The arduino mega 2560 and shields and what not added another 44.
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