Now I may be totally wrong here but that fancy gadget in your link is new to me but it looks like a thermostat but the readings on thermostats don't always give the ACTUAL temperature of the viv floor where the snake is lying .
The crucial one to my mind is the warmest spot ( usually under the warm hide ) that the snake can lie on .
I use a digital temp gun to take random temps of all the hot / cold spots in all my vivs ..
These are nice and cheap thermometers - which must have a wired probe .
Sent from my iPhone using Tapatalk Pro