The Kerbl 70547 Automatic Chicken Door 2 provides reliable and convenient control for poultry house doors. This advanced system features both a light sensor for automatic opening and closing based on daylight, and a programmable timer for precise scheduling. It ensures the safety of your flock by securing the coop at night and allowing them out during the day. The door is designed for easy installation and operation, offering flexibility with multiple operating modes. It can be powered by batteries or a mains adapter, making it suitable for various setups.