Wow. See, I think I was making a pretty valid point. Homemade racks and cages, those are good ways to cut costs. However, I cheap thermostat can malfunction, and seriously injure your animal. So, I state again, now is not the time to pinch pennies. Buy the absolute BEST thermostat you can afford. Personally, I wouldn't risk my animals safety on a brand name many people haven't heard of.