PLUG AND PLAY TECHNOLOGY It takes no more than 10 minutes to install the door (no complicated wiring or cabling). Automatic opening and closing auto-on and timer settings - Set and go means that your door will work by itself when the sun is up and will go down when the sun goes down. If needed, you can set the timer for opening with the test button. Most common predators of chickens are very clever, but so are our Automatic Coop Doors. Predators mainly attack at night and can potentially figure out how to open coop doors to gain access if they are not tightly sealed. Our Automatic Coop Doors are designed to be very tightly fitted, no claw can open them up when they are closed. BATTERY POWERED 4-6 months battery life that works in all conditions WORKS IN EXTREME WEATHER Waterproof ; will work in snow, rain, and dust from -10°F to 140°F (-26°C to 60°C). Q&A Q: Can predators open my Automatic Coop Door and hurt my chickens? A: No. It would take a 100 pound racoon to open this door after it has closedŚand if you have racoons that big, I wouldnt be having chickens or small children. Q: Will the Automatic Coop Door crush my chickens? A: If it senses resistance (for example, a trapped chicken). The door stays in that position until you open the door manually with the test button and release the obstruction. Q: Will a motion detector light cause it to open in the middle of the night? A: The light sensor is designed to be sensitive to natural light but not overly sensitive to artificial light sources.