HELP. I can't get consistency in my Humi.

[BHalbrooks]

Well, as the Thread states, I either have really low (About 50% Humidity, which occurs most often) or high (Like 71% Humidity.) I've included Pictures of what I'm using, because I've almost literally no knowledge of what everything is called. I've been smoking for a couple years, but this has always been a huge problem. I humbly beg for help.

I've done the Dollar Bill test on the Humidor, and the seal seemed fine. But the Glass, and front part where the Hygrometer are could be the problem.