Date: Tue, 16 Sep 1997 10:23:48 -0400 From: "Semanchuk, Phil J" <pjs20347@glaxowellcome.com> To: cp@opus.hpl.hp.com Message-Id: <aabcdefg3558$foo@default> Subject: Re: Add this to the pricelist
>> Electronic Soil PH Meter - $24.95
<< snip!>>
> Where did you purchase this device? Sounds
> interesting ...
Ken,
I realize your question was not directed at me, but I have some
experience with these things. I bought an electronic pH meter at Home
Depot. For those who don't know, Home Depot is a giant hardware store
chain; they also sell gardening equipment and plants. The meter requires
no batteries which is a big plus IMO. The soil has to be slightly damp
for it to work. It has a foot-long thin metal rod that you stick in the
ground. The rod is attached to a wire that leads to a meter that
displays the pH. I think the meter is simply a very sensitive voltmeter
that detects weak currents in the soil and maps that to pH. In case you
can't tell, I'm talking out of my depth here.
I had mixed results with the one that I had. It didn't always give me
results, but it *mostly* worked. The worst point about it was that it
turned out to be extremely fragile. It's made of cheap plastic and of
course since I was out tromping around in a swamp I eventually dropped
it or bonked it accidentally against a tree or something, but it stopped
working. I bought another one (same brand), dropped it once and it
stopped working. Enough of that!
I think Edmund Scientific (http://www.edsci.com/) offers a pH meter.
Caveat: I have never ordered from ES but their catalog seems to carry
quality stuff. Let me know if you buy one from somewhere and have
success with it.
Phil
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