i have 2 digital temp sensors i am going to get a sensor for humidity but right now i only have the cheap dial type.the cage sides are coverd pretty good with fake plants,the back had a fake rock wall but i had to take it out,he started getting between it and the glass.im going to clean his tank next week and i will secure it so he cant get behind it.i have a hide for hot and cool side but they are not the same and plan to correct that.thanks to all for the info.