Sets the standard for incubating and hatching eggs. Built-in fan constantly circulates the air to maintain a proper temperature throughout the incubator, eliminating harmful hot and cold spots. Durable styrofoam retains warmth, generated by a gentle heating element controlled by a highly dependable, solid-state thermostat. The thermostat can be easily adjusted at small increments to suit varying environments. Built-in moisture channels allow the addition of water to the bottom of the incubator to help maintain humidity, a key factor in egg health. Mesh screen safely supports eggs during hatch period. Two 4 inch by 8 inch viewing windows allow for monitoring the hatching process and are great for educational purposes. Holds up to 41 large chicken eggs. This product is intended for general poultry hobbyists and is not recommended for professional or commercial use or for incubating exotic birds. Automatic egg turner is included.