Are hygrometers accurate?

Published: 13 October 2021
on channel: MihaiDesigns
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1.1k

I use hygrometers to monitor air moisture inside my filament dry boxes for that hygroscopic 3D printer filament. But how accurate are they? The cheap ones can only measure down to about 10% humidity and have about 5% error margin above that.

Mini hygrometers (affiliate links):
Amazon US https://amzn.to/2XbgYTQ
AliExpress https://s.click.aliexpress.com/e/_9HKeAZ

Check out my latest dry box design https://mihaid.com/printed-drybox

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