reliable brand of PH and TDS meters? - The Planted Tank Forum
 
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post #1 of 15 (permalink) Old 05-20-2013, 04:50 AM Thread Starter
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reliable brand of PH and TDS meters?

what's a reliable yet reasonably priced meter for PH and/or TDS
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post #3 of 15 (permalink) Old 05-20-2013, 12:52 PM
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For TDS, I stand by the $10 blue units on eBay.

Since pH meters mostly have to be calibrated before each use, I'd say the best brand is no brand unless you've got dozens of tanks and need to test pH with frequency.
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post #4 of 15 (permalink) Old 05-20-2013, 02:07 PM
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Re: reliable brand of PH and TDS meters?

Hanna.

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post #5 of 15 (permalink) Old 05-20-2013, 05:33 PM
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Somewhatshocked, are you talking about the light blue opaque plastic one or the darker blue with more translucent plastic. There is a few different "blue" models on Ebay, and most don't have a brand name with them. Thanks for the clarification, as I may be purchasing one soon.
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post #6 of 15 (permalink) Old 05-20-2013, 08:12 PM
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Just the standard light blue TDS meter with the dark blue cap.

But any of the $10ish meters on eBay should work just fine. I've been using them for years.
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post #7 of 15 (permalink) Old 05-20-2013, 08:39 PM
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I use a $15 meter off amazon. You should definitely invest in some calibration solution though no matter how expensive the meter is.

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post #8 of 15 (permalink) Old 05-20-2013, 08:42 PM
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Quote:
Originally Posted by Clemsons2k View Post
I use a $15 meter off amazon. You should definitely invest in some calibration solution though no matter how expensive the meter is.
TDS or ph?
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post #9 of 15 (permalink) Old 05-20-2013, 09:11 PM
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Milwaukee makes good PH monitors/controllers.
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post #10 of 15 (permalink) Old 06-10-2013, 12:37 AM Thread Starter
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is this a good one and will the 1382 ppm solution be what I need for recalibration. Sorry I'm not familiar with these TDS meters. I know you can get other ppm solutions.

[Ebay Link Removed]


what?! link removed??? ok.... it's a HM TDS4 meter with 1382 solution for $21
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post #11 of 15 (permalink) Old 06-10-2013, 01:20 PM
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You can't post ebay links, instead post the item number only.
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post #12 of 15 (permalink) Old 06-10-2013, 01:27 PM
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do you still need to callibrate a TDS meter then? when you buy them do they come callibrated?

i do have a ph pen the cheap yellow ones on ebay but i never seemed to have much luck using it on my old shrimp tank as it never stayed stable it kept rising as the water moved round? i did callibrate it but in the end gave up

do you need to store them in a liquid as i also read that if you dont store them in a liquid then they stop working anyway?

im about to buy an R/O machine and guess a TDS meter would be needed really but not checked as i have been buying my RO in

sorry to hijack
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post #13 of 15 (permalink) Old 06-12-2013, 05:15 AM
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this one work really well for me ... approx200$ nice looking well working
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post #14 of 15 (permalink) Old 06-12-2013, 04:35 PM
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I use this one as well. Just got it a couple weeks ago, actually. I didn't get any calibration solution, but then again, I work in a Chemistry research lab, so I have access to Milli-Q water as well as stuff to make my own calibration solutions.
They come calibrated from the factory, but I never trust them. I read somewhere on this forum that a member's meter from the factory was over 50ppm off out of the box. If you are planning on being in the lower TDS range, you don't really need to get the 1000ppm calibration solution.
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post #15 of 15 (permalink) Old 06-12-2013, 05:21 PM
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I have both a Hanna and a Milwaukee PH meter. One is as good as the other.
You have to calibrate them before you use them- easy enough to do though. I like having the meters

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