I put a digital thermo w/ a probe on top of a raised hide on the cool side and it's reading 82 so I hope that's a good sign for ambient temps being in the 'safe zone'. Is it recommended to have two digital thermos w/ probes on the enclosure floor AND a thermo to measure ambient temps? If so, any recommended ambient temp therms?

Here's what I'm currently working with

http://www.reptilebasics.com/thermometers/TH-100/

I assume it's recommended to glue the probes onto the enclosure floor and cover w/ substrate.