hygrometer question...
ive calibrated all 6 of my hygrometers. they are reading differently respective from each other but ive marked them with +/- calibrations to correct for the differences.
however, ive placed them in various indoor and outdoor locations and they are all reading several %'s off from their respective calibrations. ideally, i should be able to apply the +/- calibrations under different conditions to tare their rh's. but it seems differences are exacerbated as humidity goes further away from 75.
how can i determine which one/s are truly accurate?
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02-08-2009, 04:20 AM
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