OK, so I thought one of my girls hygrometer was off so I switched them into the others enclosures to see if they were working. They were still acting wonky and didn't seem right.

I went on the Spyder robotics site and ordered 2 of their temp/hygrometes and am running them alongside their old hygrometers. They are reading between 1% to 5% different than the old hygrometers at times and the exact same at others.

So, do I assume that they are working fine? A 5% margin of error is ok? I try to keep them between 55% and 65% when not in shed and 70% to 80% when in shed.