I recommend that you get separate Ph and TDS meters as failure in 1 meter does not mean failure in the other.

Combo meters do neither well.......

willard3,

Thanks! I can go with separate devices. I guess it is a bit cheaper to get the combo when compared to the price of individual units. I'm currently using pH paper and an aquarium water test kit for TDS. I'm less concerned about upgrading my pH testing than the TDS tests.

No comment on Hanna as a brand name? A guy in the local hydroponics store liked Oakton. I don't remember an opinion on Hanna.

Mark

I tried asking Hanna questions about specifics of their meters as I wanted to purchase one. Their customer service would not answer my question unless I bought the meter. I kept writing them saying I wanted to buy one of their meters & had some questions about it & kept getting e-mails asking what meter I had purchased. They kept giving me the runaround so I did not buy from them.

I have a "truncheon" tds/ec meter and a oaklyn ph meter.
>>>>no complaints w/either.

if i were to get one meter i would get a truncheon

I use a Hanna at work and I wouldn't buy one for personal use.

what is it about the hanna you use at work that make it un intresting to you?

Definitely go with the Tuncheon or the Dipstick, both made by New Zealand Hydroponic. The bib, big, BIG plus for these is that they do not need to be calibrated. You can get a good price on the site below:

Here is a link that might be useful: Alabama Hydroponics

I have a "pH/EC/TDS Test Meters Monitoring"

Here is a link that might be useful: ym-hydroponics

Not to hog a guys thread, but any comments on the Millawkee SM802 combo meter other than I cant aspell it? :-)
It got here yesterday and works great, but it is new after all. Wasnt fond of buying 3 monitors.. paid $148 after shipping with insurance on ebay.
Thanks

I have the Tuncheon and it is really easy to use. I've been using test papers for the pH. I would kind of like to get away from the papers but most of the ph meters seem such a pain to calibrate all the time, you have to buy the calibration solutions and storage solution and then you need to replace the probes regularly too. The on-going cost doesn't seem to warrant switching from the test papers. I could be wrong though.

I like EC/TDS temp personally, and an alternate pH indicator. good luck

---------- pH/EC(TDC)/Temperature Test Meters Monitoring ----------------------------------------------

Specifications YM-2006

---- Range
pH: 0.00 -- 14.00pH EC:0.00 -- 19.99EC
C: -50¡ãC -- 70¡ãC ¡ãF: -58¡ãF -- 158¡ãF
CF: 0.0 -- 199CF TDS: 10 -- 19990ppm
Resolution:
pH: 0.01pH ¡ãC: 0.1¡ãC ¡ãF: 0.2¡ãF
EC: 0.01EC CF:0.1CF TDS:10ppm
---- Accuracy
pH: +/- 0.03 pH ¡ãC:1.0¡ãC
EC.CF.TDS :+/- 2% F.S
---- Operating Temperature: 0¡ãC-- 50¡ãC
---- Automatic Temperature Compensation: 0¡ãC--50¡ãC
---- Batteries: DC6Vor4x1.5V(AG13)
---- Dimensions: 155x86x22mm
---- Weight:222g

Here is a link that might be useful: ph-truncheon