http://www.cheaphumidors.com/CALIBRATING-KIT.html This is a simple and surefire method to accurately calibrate any digital or analog hygrometer. The kit uses a 75.5% relative humidity standardâwidely used and accepted by chemists and lab professionals to determine the accuracy of any hygrometer (also known as the salt test). Humidipaks One Step Calibration kit is used by some of the top museums in the world to calibrate their instruments, including the National Gallery of Art in Washington D.C. Easy to Use. Automatically Created 75.5% Environment. Lab Tested for Accuracy. Reusable. Lifetime Warranty.
@PoeticShadow
you answered your own question: "and it's analog". only high end made in germany analog hygrometers work properly. forget the made in china ones.
hovy82 1 year ago
I don't know why my hygrometer wont go past 59 and its anolog
PoeticShadow 1 year ago
Great video. Boveda One-Step claims "once opened (unsealed) it can be used for 3 months". Obviously this is if you re-ziplock after each use.
ralphclausen 1 year ago
keep making vids! i bought this and the 72% humidity pack from your shop online
alen209 1 year ago
thanks
badano13 2 years ago