Humidity sweet spot

[KMG]

Hygrometer placement. So I have 3 in the enclosure. One that sits on the ground next to his warm hide reads 52%. I have one literally not even a couple inches away from that sitting on the glass about 2 inches above the substrate and it reads 64%. So what is the proper way to read these

If each is accurate you just read them as you did. If they are not accurate I would compare them to one you know is and adjust the numbers in your head unless the unit can be calibrated.

I have two electronic ones in my snake room, one on each side. They are usually near agreement to each other so I don't worry about it. I don't put any in my cages except my GTP and ETB. They each have one of these.

https://www.amazon.com/Zoo-Med-Econo...s%2C172&sr=8-3

Surprisingly they are pretty accurate. I compared them to my calibrated hygrometer I use in my cigar humidor and they were spot on. I have had them for years now.