Hi Terry, The ones you have unfortunately use a conductivity test from which to calculate RH. Unfortunately the material ages--leading to false readings. Not to mention voltage drop as batteries age. At 02:39 PM 3/8/00 -0500, you wrote: >Don: >I have three hygrometers. The one sold by DC, another similar one, and one >that may be a bit better. Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Saskatchewan Centre of the Arts drose@dlcwest.com http://donrose.htmlplanet.com/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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