One thing that is forgotten often is the condition of the battery in your hygrometer. When the battery starts to lose its voltage the hygrometer will give readings that are far more inaccurate than when new. I replace the batteries in my hygrometers when we have a time change, do the smoke detectors too. This way that problem is eliminated and you can trust the readings more.

If you got your beads from me and you are in any way uncomfortable with them or feel they are the wrong rh I will be happy to replace them. Just FYI, I work very hard at not mixing up the beads, I package only one rh at a time then put everthing away before packaging the other rh. But as they say no one is perfect, my wife reminds me of that often.