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02/04/2009, 02:54 PM | #1 |
Registered Member
Join Date: Dec 2007
Location: Forest Hills, New York
Posts: 275
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pH pen monitors worth the lower price?
I see on bulkreefsupply they have really affordable pen pH monitors. They are so much cheaper than the other pH monitors. So, am I missing something or are these just junk?
Pen Montior ...as always, TIA |
02/05/2009, 07:13 AM | #2 |
Registered Member
Join Date: Dec 2007
Location: Forest Hills, New York
Posts: 275
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anybody?
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02/05/2009, 09:03 AM | #3 |
Registered Member
Join Date: Jan 2009
Posts: 25
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I have the exact same model and it works fine. However, I have to calibrate it every 1-2 weeks.
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02/05/2009, 09:06 AM | #4 |
Registered Member
Join Date: Dec 2007
Location: Forest Hills, New York
Posts: 275
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Reefer, is that as per the instructions, or do you just somehow know it goes outta whack? Also, do you have to keep the tip in water when not in use?
thanks! |
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