Bad shed. Very bad shed.

[MikeV]

Nope, the meter is working. I tried the wet towel on the screen, and it went up to 72% a few seconds later. Also moved the probe to just above the substrate. After I misted the tank, the temp went down (the water was just under room temp so it makes sense), and the humidity went up. It's an Exo Terra hygrometer/thermometer. :] I think it works well.

Ah so it is indeed working

Well, Perhaps a 30 minute warm bath, followed by a gentle rub-down with a towel will help aid in shedding

good luck!