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re:pH probes /meters
A few sources for pH probes:
IOMEGA (800) 826-6342
they have a great catalog explaining the many types of probes, selection, etc.
You can get a gel filled probe for about $ 49. They quote life as 6months to
1 year. They also have some inexpensive meters, $ 49 for a PHH-78604 which
has an LCD readout and accuracy of + or - .15 pH or a 'pocket type tester' for
$ 59.50 that hass accuracy of + or - .1 pH.....I haven't used either so can't
vouch for accuracy.
I have also seen adds in mail order catalogs for pH electrodes...from the Mail
Order Pet Shop for replacement electrodes for PH Monitors and another catalog
I have....email if you need the numbers....prices were generally more
expensive than IOMEGA for probes.
I have the Pinpoint pH meter I mail-ordered for $ 95 and it seems to work
well.
Jim Morehouse at Lucent Technologies
aljem3 at attme_att.com