Alt-BEAM Archive
Message #02687
To: Sean Rigter rigter@cafe.net
From: Steven Bolt sbolt@xs4all.nl
Date: Tue, 27 Apr 1999 17:21:39 +0200 (CEST)
Subject: [alt-beam] Re: AQUASENSOR
On Tue, 27 Apr 1999, Sean Rigter wrote:
> If you must periodically have to look at the LEDs you could also
> stick you "real" thumb in the soil and get a "feel" of the
> moisture content.
In practice, the Thumb often does a better job, probably because it
measures deeper than a real thumb tends to go.
> So in retrospect, the original the ultra low power, 1.5V battery
> powered, "set and forget" piezo design makes more sense for less
> attentive gardeners who need to be triggered into action by the
> audible low water alarm.
It certainly has its charm. When do we get to see that micropower
valve you were talking about?
> WARNING: there is some risk to the user that over time this PIEZO
> AQUALARM will produce a "conditioned" response with an urge to
> "water" something every time you hear a beeping sound 8^)
:)
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# sbolt@xs4all.nl # Steven Bolt # popular science monthly KIJK #
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