Re: pH Meters

[Tim Ellis <timellis@flash.net>]

Thanks for the input yall. I  appreciate it. The multi use units are very
attractive, especially if they use separate probes. I just can not get a warm
fuzzy feeling about the combined use probes. Not that I know that much about them,
just seems kinda too good to be true. The silicon chip sensor is probably the one
I will go with. (so many toys,so little time) Oh yeah, the folks at Hanna and at
Phmeters.com were very patient, and helpful. Seems hard to find that anymore so I
thought I would plug them.

Thanks again,

Tim





Ken Simolo wrote:

> Tim,  If you are going to spend that kind of money ($125 - $150), I
> would recommend the silicon chip sensor pH meters. They can be stored
> dry and the electrodes are good for 10,000 - 20,000 readings.  Most
> of the standard gel pH electrodes (the kind found in most of the
> smallhand held pH meters) last for 6 months to 1 year and then you
> have to replace the whole meter.  The best price/performance that I
> have seen are at www.phmeters.com - I just ordered one that I will be
> testing for use in our chemistry labs.  They came highly recommended
> by a salesman who only carries standard hand held pH meters so he was
> actually losing business by recommending them!  The extra $25 to get
> the model 125 (if I remember correctly) is worth it because you get 3
> point calibration capability among other things.
>
> I have had good luck with the "inexpensive" ($60) hand held
> conductivity meters as well as a new $25 tds meter I got for $25 on
> ebay.
>
> Ken
>
> >I have been looking for a really good ph/ec/tds meter. Hanna Instruments
> >has two for 150.00 each. Has anyone had any luck with these multi
> >meters, or any suggestions on brand names to look for, or are they a
> >waste of time. I have heard the Pinpoint PH meter is pretty good. What
> >do yall think?
> >
> >Tim
> >
> >
> >
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