Just to make things clear, I do have a thermostat. I simply want the thermometer/hydrometer to make sure that there's no heat build up inside the tubs/that heat is actually getting inside the tubs to the correct temperatures.

It gives me peace of mind to have have something I can take a quick glance at if need be.

I realize that this is a $12 piece of equipment, which is why I have said that I'm just gonna chunk it and get a new one and it's not that big of a deal. I was just wondering if anyone else had had the same problem and/or might know what went wrong (if anything I did) so I can prevent it from occuring again.