Need some help...UTH won't stick to tank.

[largeone]

I have been looking for that type of thermometer with the probe but no one has one here. the only ones that i have been seeing are the ones with the wireless piece. I can't find one with the probe.

Also I don't have a thermostat yet. I am planning on getting one of those soon because i know that i will need one with the ball pythons.

Right now i have to be budget friendly until i have enough money to get the right stuff for the other snakes that is why i have started off with just a corn snake. I want to get everything perfect for that guy first then get the other snakes. I really can't thank you enough for all of the help.

Also how should i secure the probe to the bottom of the tank over the heater? Could i just use the foil tape. I don't really want to let it lay in there. Should it be between the glass and the mat? or should the probe be in the tank on top of the glass?