Hmmm I totally (not totally, but mostly) disagree with what Greg said.
Heres the deal though, humidity not lower than 70%? Based on what? 85 to 90????? Why again?
Ambient not lower than 80?????? Why?????????
Adding in all of this and that at this temp and that humidity is so dang hard for a new keeper to keep up with. Checking each and every temperature and humidity and making sure there is this and that.....dang, no wonder some people quit after their first reptile.
Why not just keep it simple. CHOICES from cool to hot and from not humid to humid. The more you try to keep up on these temperatures being at 80.4 to 85.9 or humitiy that is 85.564% is going to push away from keeping such animals.
Just give a range of everything (ambient temps, surface temps and humidity), keep stuff simple. Once you provide your range you can adjust based on YOUR observation. And then you can adjust again, and again.
You will be rewarded for keeping it simple and listening to your monitor(s).
Cheers,
Mike.