Feature 1、Durable And Rustproof: The door frame of the chicken cage door is iron sheet metal, and door panel is plastic, which is safe and durable, light in weight, easy to use, not easy to lose paint and rust. 2、3 Mode: Time mode can set the time to open and close the chicken coop door according to the season, direction, and the regular entry and exit time of captive chickens. Light sensor mode is that the chicken coop door opens automatically at dawn, automatic induction. Remote control mode is barrier free control distance up to 16 meters. 3、LED Display: With a HD LED display controller, the time setting is clear and easy, and the specific opening and closing time of the chicken house can be clearly seen through the display. 4、Easy To Use And Install: Easy to program buttons. Automatically turn on in the morning and off in the evening. Achieve convenient and efficient results. Just install the battery in the right place to use. 5、Safe: Suitable for chickens and ducks. As a chicken coop accessory, safer and stronger enough to ward off predators and keep poultry safe. Power supply does not require complicated wiring, just install the battery in the right place to use. (Shipped without batteries) Item Type: Automatic Chicken Coop Door Material: Iron Sheet Metal, Plastic Weight: Approx. 2229g / 78.6oz Applicable Object: Chicken, Duck, Goose Coop Door Size: Approx. 37.3x24.7cm / 14.7x9.7in Coop Door Open Size: Approx. 28.5x20.5cm / 11.2x8.1in Controller Size: Approx. 11.2x10.2x3.5cm / 4.4x4.0x1.4in Including Hook Height: 11.6cm / 4.6in Hook Hole Inner Diameter Size: Approx. 12x11cm / 4.7x4.3in Controller Battery (Delivered Without Battery): AA Dry Battery Or 3 x Lr06 Alkaline Model Battery Remote Control Battery (Shipped Without Battery): 1 x Button Battery, CR2025 Model Control Function: Light Sense, Timing, Remote Control Remarks: Screwdriver Style Is Random Package List 1 x Remote Control 1 x Automatic Chicken Coop Door 1 x Controller 10 x Screw 1 x Screwdriver 1 x Manual Note 1. Do not use rechargeable batteries in devices. 2. Do not mix old batteries with new batteries. Before inserting the battery, make sure the battery is inserted with the correct polarity (positive and negative). The battery should be removed from the device and disposed of safely. 3. If the device is idle for a long time, take out the battery. The power terminal must not short circuit. 4. If the obstacle object is too large, it will affect the remote control induction. 5. Light sense must be the nature light during the day can be induced, light sense can only open the door, because light sense is easy to close too early affect the chickens into the house, fixed door can only be timed function operation.