Quote:
Originally Posted by Fredo456
I keep reading about hygrometers having to be recalibrated. Some recommend to recalibrate after a sudden change in Rh.
Isn't the point of this tool to accurately indicate the rh of a given space? How accurate is it really, if one can't trust it and has to recalibrate it so often?
Thanks.
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Like all things that run on batteries they wear out. Also, most digital hygrometers rely on the battery charge to maintain their calibration. As the batteries wear the calibration changes a little.
Also, it's not like it is a huge problem to check your hygrometer a few times a year.