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Re: TDS meter
In a message dated 5/23/2000 8:15:43 AM, huntley1 at home_com writes:
<<
Lee wondered why pH meters were so expensive.
>>
No, I meant to refer to the conductivity meters. I know why pH meters are
expensive and even then require constant calibration to get a meaningful
result. I was really attracted to the Hanna reference posted.
Lee Harper
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