Date: Tue, 16 Sep 1997 11:00:12 -0400 From: Dick <Dick@rmy.emory.edu> To: cp@opus.hpl.hp.com Message-Id: <aabcdefg3560$foo@default> Subject: Re: Add this to the pricelist
Semanchuk, Phil J wrote:
>
> >> 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
> URL du jour: http://www.hayti.org/bluesfest.html
Omega has several portable inexpensive pH meters. I bought one years
ago. It had a real glass probe and digital readout.
http://www.omega.com/products/phh7x.html
Check it out.
R. Wagner
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