I use this for snake eggs. It is the best economy option out there (better than the turbofan model which dries out eggs), but only if you use it with a high quality thermostat. The wafer thermostat is unfortunately very cheap, so you can't really use it for something as delicate as incubating eggs. Just remove (or don't even assemble) the wafer thermostat, and replace it with your own. You have many options when choosing a thermostat to use, but make sure it is a PROPORTIONAL thermostat. A proportional thermostat doesn't simply turn the heating element off when it gets too warm; it adjusts the amount of power going to the heating element, so you get much more stable temperatures.