I personally find mounting a Tstat probe in the enclosure itself to be unsafe. If somehow the probe was damaged or pulled away from the hot spot by the animal, it would be reading the temps incorrectly and cause a heat spike to compensate for not sensing any heat.
Several people in this forum have burned their snakes, melted tubs, and even caused fires from Tstat probes that have been inside enclosures and dislodged from their tethered spot by the animal.
Why even risk that!?! Just seems like an unnecessary step to achieve the same thing with the probe as one being outside the enclosure, except it comes with higher risks.
NH93 uses a wood based substrate, where the probe can be buried and somewhat protected from physical movement of the animal. What about those who use paper substrate? I feel like tape and the like would not protect the probe very well. (not to mention tape shouldn't be in the enclosure with an animal regardless of adhesive strength)
Lastly, Spyder Robotics even state in their instruction manual to mount the probe outside of the enclosure and on the heating element directly.
And if you were to choose to put the probe inside an enclosure, they recommend not using an enclosure that is inhabited by an animal.
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