for years, my hygrometer has read a steady 65% in-house humidity which I've been ok with both for cigar and guitar.
But for christmas, my FIL gave me a nice little humidor w/built in hygrometer. It read 95% when I first opened it, so I left it open in my office for a few days. It still read 95%.
Now I'm confused, but I know one of them is wrong.