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Re: Current Dupla Research
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To: Aquatic-Plants at actwin_com
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Subject: Re: Current Dupla Research
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From: richardm at cd_com (Richard Masoner)
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Date: Wed, 27 Nov 1996 12:21:42 -0600 (CST)
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In-Reply-To: <199611262039.PAA02579 at looney_actwin.com> from "Aquatic-Plants-Owner at ActWin_com" at Nov 26, 96 03:39:03 pm
> Now that $1000 Dupla pH controller is an amazing device. All of the
> aquarium pH meters/controllers available in the US (with the exception of
> the Octopus) are analog. Dupla's is a true digital product featuring high
> accuracy, temperature compensation, etc. Do you need such a device to
> control pH? Heck no! Would you want such a machine? If your a
> techo-gadget freak like me, SURE! However, you can build one much cheaper.
A company called Omega Engineering (http://www.omega.com) has a set of
catalogs for engineering dweebs like me, one of which is titled _pH and
Conductivity_. They have digital pH meters that range from hand-held
doo-dads that are under $100 to thousand dollar wonders that are
specifically for aquaculture, have RS232 outputs (so you can computer
control your aquarium), and also measure things like dissolved oxygen,
dissolved solids/conductivity, and temperature. Cool stuff.
Richard Masoner
in icy but sunny Champaign Illinois