I am in the midst of home-making my first snake rack. Just a simple 10 bin rack. I have most of it figured out thanks to the forums and other research. Just one question, I currently am using a tank and I have 3 thermometers and 1 hygrometer to measure 1).hot side temp on glass 2)cool side temp on glass 3)ambient temp and then 4)overall humidity.

In Tubs, do I need to be so excessive? I've seen some people only using 1 thermo/hygrometer and a thermostat? Is that enough?

If you could just let me know how you monitor your tub temps and humidity I would really appreciate the help.

I'll be using a Herpstat II with Flexwatt tape, atm I will be using back heat(in case that makes a difference) Thanks!!