Well I have never had a problem with any of my snakes getting caught in my Thermometer probe wires but I set mine up like this



I have the thermometer in the tank and the probe wire wraped up around it self and just under the substrate.

As for my humidity issue I just cut a peice of Plexi to fit over the screen of the tank and cut a few holes for ventilation and the CHE as so



Keeps my temps and humidity alot more stable hope this helps feel free to ask more question and be sure to check out the caresheet lots of great info there and feel free to ask any other questions you might have