The automatic coop door is made of all-aluminum, which is sturdy and not easy to bend, preventing predators from breaking into the chicken coop. It comes with 3 options for door opening and closing control. In light sensing mode, the door will automatically open with daybreak and close with sunset. In timer mode, the door will automatically open and close at the time you set. You also can use the remote control or button on panel to open and close the door. Directly mounted on the door frame with screws for maximum security. Our weatherproof design has been tested with a wide temperature range and can operate in ambient temperatures like snow, rain and dust from -30°F to 131°F. Suitable for small poultry, such as chicken, ducks, hens and geese.