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-   -   reliable brand of PH and TDS meters? (http://www.plantedtank.net/forums/showthread.php?t=337010)

Titansfever83 05-20-2013 03:50 AM

reliable brand of PH and TDS meters?
 
what's a reliable yet reasonably priced meter for PH and/or TDS

Monster Fish 05-20-2013 03:55 AM

I use this TDS meter:

somewhatshocked 05-20-2013 11:52 AM

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.

OVT 05-20-2013 01:07 PM

Re: reliable brand of PH and TDS meters?
 
Hanna.

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Dolfan 05-20-2013 04:33 PM

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.

somewhatshocked 05-20-2013 07:12 PM

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.

Clemsons2k 05-20-2013 07:39 PM

I use a $15 meter off amazon. You should definitely invest in some calibration solution though no matter how expensive the meter is.

PlantedTankRookie 05-20-2013 07:42 PM

Quote:

Originally Posted by Clemsons2k (Post 3404490)
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?

gSTiTcH 05-20-2013 08:11 PM

Milwaukee makes good PH monitors/controllers.

Titansfever83 06-09-2013 11:37 PM

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

D-Linquent 06-10-2013 12:20 PM

You can't post ebay links, instead post the item number only.

jameshill247 06-10-2013 12:27 PM

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 :icon_mrgr

Shokan Yamadori 06-12-2013 04:15 AM

http://cdn2.bigcommerce.com/server29....1280.1280.jpg

this one work really well for me ... approx200$ nice looking well working

ngrubich 06-12-2013 03:35 PM

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.

Aquaticz 06-12-2013 04:21 PM

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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