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Re: Aquatic Plants Digest V4 #1604

To: <Aquatic-Plants at actwin_com>
Subject: Re: Aquatic Plants Digest V4 #1604
From: "Doug Karpa-Wilson" <dkarpawi at indiana_edu>
Date: Mon, 11 Feb 2002 10:15:52 -0500
References: <200202110848.g1B8m3Q28310 at actwin_com>

> I have heard a lot about Pinpoint monitors, what about Hanna?  Anyone ever
> used Hanna?
> Don


I have both the pocket pH and the pocket TDS meters, and I'd swear by them
both.  The TDS meter seems unbelievably solid in it's calibration.  It is,
of course, very important to clean the pH meter regularly if you want even
halfway decent and stable readings.  When it's clean and calibrated, I can't
see any reason to want anything more.  Of course, I'm sure someone will
correct me, if that's in error!  I wouldn't do analytical chemistry with it
(which I do periodically using better pH meters), but for our purposes I'd
give it the thumbs up.

Doug

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