"I mainly bought this as a second hide to stay on the cool end of my skink's enclosure. It's ready to use right out of the box, but I didn't realize that the cover is just a separate piece of plastic that lies on top of the hide without anything to secure it. I'm not entirely sure if the humidity reading is accurate because I've been using it without any extra damp material inside, and the humidity reads at a consistent 85-90% even when the entire enclosure is in the 40s.
However, my skink seems to like it. Though, I did get the large size so it's good to know that anything larger than a gecko or small snake will probably outgrow it."
Reptile Humid Hide with Thermometer/Hygrometer