1.Light sensor: The chicken coop door automatically opens at sunrise and automatically closes at dusk thanks to the light sensor technology included in the product. 2.Waterproof and durable: The automatic chicken coop door is made of ABS material, IPX4, waterproof and resistant to high and low temperatures.Thanks to its waterproof housing, it is ideal for indoor and outdoor use. 3.Protection for your chickens: The cage door opening closes reliably and provides sufficient protection against enemies (foxes, minks, etc.) during the night. 4.Easy to use: Only 3 ordinary 1.5V batteries (not included) are needed for 8 months.No complicated wiring is required, it's easy to use and the indicator light flashes continuously to signal a low battery alarm when the battery drops below 20%. 5.Automatic Chicken Coop Door: The chicken coop door fits almost all sizes of chickens and ducks can pass through without any problem.