Solar WiFi Chicken Coop DoorSuitable for standard, exotic and heritage backyard chicken breeds. For large chicken breeds such as Brahma, Jersey Giant, and Cochin, consider the Large Automatic Chicken Door. Automatically opens your coop door at dawn and securely closes it at dusk, or schedule door open and close times. Solid Steel Acme threaded worm drive for dependable operation. Programmable coop door controller: Program custom options, adjust settings and manually override