Guys,
There is not a slot to adjust my hygrometer, nor is there any way to open it up as I can see. It is circular, 2" in diameter with a gold and glass face. The back is magnetized, with a silver backing and five small holes in a star arrangement. I see no way to slide something in, and those little holes barely fit the point of a knife. Any clues?? I just finished my salt test. It came in at 50%.
~IrishGrad