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Thread: Digital pH tester

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    Digital pH tester

    Hi TFP,
    I'm interested in everyone's thoughts on hand held Digital pH testers (the pen type). Is calibration a hassle? easy to use? accurate?

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    Digital pH tester

    [Merge by moderator - Please do not make duplicate posts. Thanks, jblizzle]

    Hi TFP,
    just wanted to get some reviews of digital pH meter with the LED displays, hope someone has some good insights into their value...

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Digital pH tester

    The inexpensive digital PH testers tend to drift and they fail rather rapidly. A few of them are easy to calibrate, but you do need to have reference solutions available, which makes it something of a hassle. Around $60 and up they start to get more reliable, but I still much prefer the standard drop based PH testing, which doesn't have the quirks and ongoing attention that the electronic testers require.
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    Join Date
    Oct 2007
    Valrico, FL

    Re: Digital pH tester

    I am currently using the HM Digitial PH-200 tester. One nice feature made in the US! Calibration is not a hassle, but you do need pH calibration reagents. I use Hach powder pillows.
    7,500 gal, IG pool, L shape 22' x 15', 1.5 hp pump, cartridge filter, AquaPlus SWG/Controller, Pebble-Tec liner.

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    Re: Digital pH tester

    I use a Myron L 6Psi. I use it for work and all my calibration solutions are also supplied by work. I calibrate it weekly. I think as far as price goes, if you are willing to buy a high quality meter for upwards near $1,000.00, those electronic meters are very reliable. Now my experience shows almost all pH pen type meters fail and drop type pH test kits are more reliable. After all, as long as the reagent isn't expired, the chemical inside will always change color at it's prescribed ranges.
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