Tried some cheap hygrometer/thermometres from Amazon, and no surprise they didn't do great. I sent them back. I'm looking at this one now:
It's still a digital one, and I am guessing that a dial version would be even more accurate, but I want something that I can use in my family's still-air...
Hens go broody when you don’t want them to… and won’t go broody when you do.