No problem for being nit picky, if I'm doing something less than optimal, I want to know so I can fix it!
I don't have any pictures off hand of the set up in it's entirety, I'll have to take a picture when I get home - at which point I can tel you the kind of thermometer I have (it's a digital one, that is linked up to a thermostat.)
Her activity level has been on and off, but usually only at night; then she's in the hides all day. She'll come out and crawl around at night.