So currently I'm using the Hydrofarm Thermostat for my ball python tank. It works fine at keeping the temperature where it needs to be but I'm getting another snake soon. I have been trying to set up another tank for it and am having trouble with the temperature in it. I was wondering if its possible to use that thermostat for both heat mats? It only has one probe and one plug but I have a thing so I can plug both heat mats into it. I thought they would equal out to the same temp but they haven't yet. Has anyone else tried this and been successful? I could buy another thermostat I just wanted to save a few bucks

Link to thermostat I have:
http://www.amazon.com/Hydrofarm-MTPR...9924522&sr=8-6