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Arrow111 · 02-08-2009, 03:20 AM

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?

02-08-2009, 03:20 AM	#1
Arrow111 Still Watching My Back Join Date: Oct 2008 Posts: 52 Trading: (3)	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?