Plug and Play technology: all plastics and sliders. Premium Powder Coating Excellent color design for automatic coop door installation in less than 10 minutes (no complicated wiring or cables required). Automatic Chicken Door: This automatic chicken coop door opener features water resistance, sturdy construction, light sensor, simple user interface and most importantly light sensor to take care of free range chickens at night and during the day. Automatic Smoker Door Kit: Automatic coop doors are resistant to high and low temperatures and can operate in snow, rain and dust from -15 F to 140 F (-26 C to 60 C). With Timer: When closed, the built-in sensor can detect if there are obstacles under the door to prevent damage to the chickens. Protect your chicks from predators. Automatic coop doors protect your chickens so you can enjoy fresh eggs in the morning. Battery Power: Automatic chicken coop doors work by detecting automatic door opening using a charging sensor Battery life at least 1 year in any condition, requires 3 AA batteries (not included). Withstands high and low temperatures Automatic coop doors can withstand high and low temperatures, as can batteries. Since the battery comes in a waterproof case, it can be used outdoors in cold or warm weather and will last for a year. Timer Settings Set and leave means your door will work on its own when the sun rises and close when the sun goes down. If necessary, you can use the test button to set a start timer. EASY TO INSTALL COOP DOORS This chicken coop door opener comes in a sturdy package with 6 screws and instructions. No exhaust assembly required. The doors work on their own using light-sensitive technology, so they rise in the morning light and lower when there is no surrounding light. The intuitive design allows your chicks to spend their best time outdoors and spend most of their time sleeping outside the security gate. Size: 35x24x3.7cm Package includes: 1*Automatic chicken coop door