Hi,
Just to say the temps where those stick on probes are isn't really all that critical.
You want to check the temps the snake will be directly exposed to when it is in the hides at each end - they spend so much of their time hiding those are the main ones to worry about.
I would recommend putting the probe from the acurite in the warm end hide and the base unit on the cool side to get a good read on things.
dr del