whats a good PPM meter

Discussion in 'Do It Yourself' started by Dabber68, Dec 5, 2017.

  1.  
    Dabber68

    Dabber68 Well-Known Member

    Looking to get PPM meter is it a necessary item and of course I'll have to read up on how to use one LOL. I have a ph meter I was smart enough to get 1 for my 1st grow knowing that ph is very important. Now time to learn more from the more experienced growers Thx in advance
     
  2.  
    swisha

    swisha Well-Known Member

    Hanna or Bluelab
     
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  3.  
    OldMedUser

    OldMedUser Well-Known Member

    Any brand will do but need to know the scale it uses to be accurate when using. Are you using your pH pen properly and keeping it in storage sol'n between uses and not RO water that will destroy it? Calibration sol'n for both pens?

    Different pens use different scales so make sure you know which your pen uses.

    PPM-EC-CF.jpg

    Good luck!

    :peace:
     
  4.  
    Dabber68

    Dabber68 Well-Known Member

    Bought a cheap one.
     
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  5.  
    OldMedUser

    OldMedUser Well-Known Member

    I still use my old Hanna I bought about '82 for $70 and it is almost always dead on with a new TDS EZ One from HM Digital I ordered from a health food place in New Mexico with a couple of .9999 silver wires for making colloidal silver for $24US when it was par with CanukBux. The Hanna reads with a 10X display but I needed finer tuning so got the new one as it reads in single digits. Mixed down some of the 1000ppm calibration sol'n to 20ppm and the new pen read 19 so good enough.

    If it's not waterproof just make sure you don't drop it in salty nutes and it should last for years. If it starts reading wonky or goes way out of calibration it likely needs new batteries and you can mess them up trying to match the calibration sol'n with the little screw when that happens.
     
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  6.  
    Dabber68

    Dabber68 Well-Known Member

    I will ck it out many THX
     
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  7.  
    PetFlora

    PetFlora Well-Known Member

    After having gone through several Hannas, I now buy Milwaukee, etc from Amazon. Works fine and cheaper to replace than just the tip
     
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  8.  
    OldMedUser

    OldMedUser Well-Known Member

    No tip changes with ppm pens so you must be talking about pH pen probes. Often cheaper to get a new pH pen.
     
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  9.  
    Terry385

    Terry385 Well-Known Member

  10.  
    Blue brother

    Blue brother Well-Known Member

    Bluelab truncheon mate
     
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  11.  
    ANC

    ANC Well-Known Member

    Get an EC meter. PPM is only somewhat useful.
     
  12.  
    Blue brother

    Blue brother Well-Known Member

    Agreed
     
  13.  
    PetFlora

    PetFlora Well-Known Member

    You're right but I had an all in one Oakton
     
  14.  
    OldMedUser

    OldMedUser Well-Known Member

    I have an Oakton pH meter that needs a new probe and it's $75. I got a new EcoTestr pH1 also made by Oakton for $69. My Oakton is just a pH pen tho. I haven't used the new one more than 10 times since I bought it about 7 years ago. Sitting in the cap full of storage sol'n and sealed with electrical tape for at least a year. Took the batteries out and used them in the ppm pen.

    For anyone's curiosity ppm and EC are the same but just different ways to read the same thing like MPH are to KPH.

    PPM-EC.gif
     
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  15.  
    Clown Baby

    Clown Baby Well-Known Member

    Bluelab truncheon all the way. Low maintenance. 5 year warranty.
     
  16.  
    since1991

    since1991 Well-Known Member

    In my experience...TDS/EC/ppm meters are much more robust than finicky pH meters or pens. They need little if any calibration. And last forever. Wish I could say the same for pH meters. I keep them clean amd calibrated and they dont last for long..at all. When they start slowing down..thats when I buy the replacement probes for my Bluelab Combo. Ive also noticed I get some wild readings depending on test solution temperature. I always add my pH down slowly and let numbers settle before calling it good. I also keep bromothymol blue drops and vial always around for back up to get reliable reads. To be honest (and Ive used them all)...pH meters/probes/pens are a real pain in thee ass for accuracy. There are real deal bench models made by all the big brands but dammit if they dont cost 4 figures. And really overblown for what we use them for.
     
  17.  
    OldMedUser

    OldMedUser Well-Known Member

    My old Hanna is damn near 30 and works fine. They're cheap as hell now. Don't take no where's near the maintenance of a pH pen. Let them dry out between uses after a rinse and they work forever.

    Pay huge for a Truncheon if you want but really no need. There pH pens are worth the money if you need to do the pH thing. I don't so doesn't much matter to me.

    :peace:
     
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  18.  
    OldMedUser

    OldMedUser Well-Known Member

    A lot of times it's just the batteries are getting low, Not low enough to get the warning on-screen but low enough to cause fluctuations in the readings.
     
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  19.  
    Cold$moke

    Cold$moke Well-Known Member

    After years of winging it without a meter aftwr the last one took a shit

    I figured. I would try a constant read because its normally drying of the tip thay screws it up
    This way its always wet

    Got a bluelab gardian

    So far so good for the first week anyway
    Very easy to use! Came complete ready to roll with calibration fluid.

    The settings where within a point from factory:)

    It reads ec tds and ppm. Temp and ph

    So far i love looking over at it and sense i have multiple reservoirs i can just drop it in to whichever for instant read

    Very happy as long as it doesnt shit the bed lol

    Although i am still leary of having any light in the room even green light freaks me out lol
     
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  20.  
    Blue brother

    Blue brother Well-Known Member

    There’s very few products out there that i would recommend fully To people, the bluelab truncheon is one, mountain air filters are another.
     
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