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Digital PH tester recomendation

Discussion in 'Articles' started by rcalzadilla, Nov 9, 2007.

  1. rcalzadilla

    rcalzadilla Prolific Poster

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    I'm having a problem reading my PH level from those color charts.
    Wondering if I should get PH digital tester.
    Could you recommend one?
    Do they really work? Are they accurate?
    Are they a hassle to keep and how much is maintenance cost.
    Would really appreciate info

    tks

    raul
     
  2. Gerryd

    Gerryd Plant Guru Team
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    Raul,

    They do work well.

    I use a Milwaukee brand SMS 122 ph meter to drive my auto c02.

    I have had it for over 3+ years and is still accurate. I replace the probe annually just in case and I calibrate every 2-3 months to ensure accuracy........... I would recommend this brand.

    Do some web research on ph meters and you can see the variety, price, etc.

    Here is a link to the meter I use:

    Automated Aquarium Systems - SMS122 pH/CO2 Controller

    Please note that prices on the web vary widely. Find the model you want, and then search for the best price.......

    I have seem my meter from $80 - $150 usd...........

    Best of luck
     
  3. rusticitas

    rusticitas Lifetime Charter Member
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    Raul,

    Actually, I was just thinking of selling my pH and TDS meters, as I have "upgraded" to one that does pH, TDS, EC and temp (I'm lazy and I was not using my multiple meters ).

    I have to double-check when I get home this evening, but I'm quite sure that the meter I have is the Oakton pHTester Basic, and my TDS meter is the Oakton TDSTestr. I don't see mine on their web site, so it might be the a previous model (say the model 10, rather than the current 11).

    Both have worked quite well for me, and can recommend either.

    And if you're interested in a very slightly used pH meter, shoot me a private message.

    -Jason
     
  4. ccLansman

    ccLansman Guru Class Expert

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    You can easily make a ph tester with minimal cost. Here is all the info you need.

    www dot 66pacific.com/ph/simplest_ph dot aspx

    hope this helps and saves you $$
     
  5. VaughnH

    VaughnH Lifetime Charter Member
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    Does this work with any pH probe? It certainly looks like a cheap way to go.
     
  6. ccLansman

    ccLansman Guru Class Expert

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    I believe so, i am acutually buidling the more complicated one listed on that site with the auto shutoff valve for a circuits class im taking :D
     
  7. Tom Barr

    Tom Barr Founder
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    They make some cheaper pen types that do pretty well, if you want a nice pH probe type, the Hanna is good and you can run other probes with it as well(comes w Temp+pH but you can add any ISE or Redox etc).

    Pinpoints have been used for many years in the hobby, decades I guess now....

    Regards,
    Tom Barr
     
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