dedalus
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I need a cheap pH probe
I used to get these for like 30 - 35 bucks. Lowest price I can find is 55, which seems high. I mean, standard gel type, BNC connector. I got an Orion
meter.
Any suggestions?
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chochu3
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Check out cynmar. Mightnot have that brand though, but may be interchangable.
\"Abiding in the midst of ignorance, thinking themselves wise and learned, fools go aimlessly hither and thither, like blind led by the blind.\" -
Katha Upanishad
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Ozone
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If you know anyone working in an environmental, academic or industrial lab, they usually discard probes when they no longer "work". I once recieved a
large bag of "bad probes". I refill with saturated AgCl and soak them for a day or two in conc. HCl; about 60-70% of the "bad" ones will work fine.
Online auction sites have been known to have a few a good prices, but as with analytical columns, buyer beware.
Cheers,
O3
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
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dedalus
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| Quote: | Originally posted by chochu3
Check out cynmar. Mightnot have that brand though, but may be interchangable. |
Great site! I'm going to add it to my links page.
They've got a nice Hanna probe for 39 bucks, that's a good deal.
Spent probes? Usually, the labs I've worked for only discard when they're absolutely on their last legs. I do take them, though - I bust them open
with a hammer and keep the Ag wire. It's good for making reference electrodes.
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squizzy
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Have you tried any of the cheap probes off ebay.
Theres one at the moment using buy iy now US$13-14 plus p&h from shanghai.
Sorry for the plug but you did ask.
Im going to try one anyway.
He also sells meters to suit $55. BNC connection,
He Also has a nifty multimeter that connects to your pc.
You can strike the occasional bargain thats cheap. its not rocket science.
Unless you have a preference for locally produced
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dedalus
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I'm grateful for any information, thanks.
Hanna sells a hook up to your PC gadget called the Turtle that I've heard good things about.
All a pH meter is is an analogue computer. If you felt like it, you could determine pH with an electrode, and any decent voltmeter.
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