PH meter oddity… “Quantum PH”

  • PH meter oddity… “Quantum PH”

    Posted by lab_grade on October 2, 2024 at 7:33 pm

    I’m getting some water ready when I noticed my PH meters were being effected by the mere presence of my hand near them. it’s like quantum PH testing… or Schrodinger’s PH meter 😅Not really a grow question but figured you guys might get a kick out of it!

    ps yes I know I need to recalibrate them 😅

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    CAC63E9B-DFF1-4491-BA68-61D53222FE3A

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    sunny replied 1 day, 2 hours ago 10 Members · 14 Replies
  • 14 Replies
  • growingcorners42

    Member
    October 2, 2024 at 7:52 pm
    Free MembershipDGC Producer

    My pen is fucked I think mine will lower then it will rise it doesn’t know where to stop it seems like I hate ph-ING water

  • bartmann

    Member
    October 2, 2024 at 8:16 pm
    DGC Producer

    Don’t buy the cheapest ph meters they usually last like a week lol but something $40 or more u should be good. I bought an hm brand on Amazon and has worked for about 5 years now

    • jmystro

      Moderator
      October 3, 2024 at 8:02 am
      AdministratorFree MembershipDGC Executive Producer

      5 years? I don’t believe that at all. They don’t last more than a year even if maintained properly. It’s lying to you at this point.

      • sunny

        Member
        October 3, 2024 at 8:17 am
        DGC Producer

        I’m looking at at least a solid four with my pH and probably seven years with my ppm. I maintain them impeccably, of course. I treat all my equipment as if I do not want to ever pay to replace it as I also enjoy testing the pH of my soil. I have other PH monitoring devices on my moisture meters, everything pretty much always says the same thing. So I’m going with it. Fact of the matter is… I use recharge. So I’m not stressing either way.

        • jmystro

          Moderator
          October 3, 2024 at 11:35 am
          AdministratorFree MembershipDGC Executive Producer

          I’ve used a bunch of different meters over the years and have come to one conclusion. Trash. When a bunch of replacement Bluelab Guardian probes were bad brand new, I threw it all away. They’ll lie (even after calibration) after about 6 months to a year. Test drops have never failed me. Thankfully I’ve always had them to test against digital meters.

          • sunny

            Member
            October 4, 2024 at 8:15 am
            DGC Producer

            OK, I do have a blue lab. But I also have drops for all of my fish tanks. So I am inspired to give it a little test and see where I’m at.

  • wrath420

    Member
    October 2, 2024 at 8:33 pm
    Free Membership

    The Apera ph20 is a great ph meter for around $50.00 from Amazon but it’s on sale for $40.00 dollars right now and it comes with the calibration liquid and is really accurate and durable for the price! I bought mine in 2023 and it’s been working great since then and I usually calibrate it every few weeks or so and most of the time it’s just a .1 off!

    • This reply was modified 2 days, 13 hours ago by  wrath420.
    • LetTruckersToke

      Member
      October 2, 2024 at 9:48 pm
      DGC Producer

      I got the whole kit and it’s been fantastic I’ve had it a couple months now it works phenomenally

  • jmystro

    Moderator
    October 3, 2024 at 8:01 am
    AdministratorFree MembershipDGC Executive Producer

    NEVER buy a digital pH meter. NEVER. Throw that shit in the trash and use test drops.

    • sunny

      Member
      October 3, 2024 at 8:21 am
      DGC Producer

      Oh, for god sake‘s calm down Grandpa. Don’t throw anything in the garbage guys. Sell it to a noob! Haaaa haaa

  • Satori

    Member
    October 3, 2024 at 11:09 am
    Free Membership

    Those vivo sun ph meters are junk. They calibrate to 6.83 and not 7. Where do you even get 6.83 calibration solution? The battery doesn’t stay in place and turn on and off in the middle of readings. Calibrate you pen monthly. I had a blue lab that costs over 100 and are very good but it went up after a long time and got a $40 one that is working just fine.

  • noah.og

    Member
    October 3, 2024 at 1:01 pm
    Free Membership

    I bought a ph meter on Amazon that looked mid-way decent and it died right after I put it in the storage solution. Got it replaced and it lasted for like a week then also died. Went to using the drops which are slightly annoying and doesn’t feel fully accurate when the water isn’t clear, but have had a very happy looking grow so it can’t be off that much!

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