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First step: Calibrating the hygrometer

Please note that this step is not necessary if one has purchased the adorini hair hygrometer. The adorini hair hygrometer comes pre-calibrated and re-calibration may be necessary only in cases of strong shocks during transport.



There are two methods to calibrate an analog hygrometer:



The recommended and most accurate calibration method is to place the hygrometer together with a salt solution into a small plastic box. One should take a cup or spoon filled with salt and moisten it with a few drops of water. The salt should not dissolve, but merely be damp. Afterwards, place the hygrometer and the salt in a well-sealed plastic box and wait. After about 8 hours the humidity within the box should have reached a humidity of 75%. Then adjust the needle of the hygrometer with a screwdriver at the rear to indicate 75% humidity.

Alternatively, remove the hygrometer from the humidor, wrap the hygrometer in a thoroughly moistened cloth, wait about one hour and then adjust the hygrometer on the rear with a screwdriver to 96% rel. humidity.