Chicken Coop Door Controller IP44 Waterproof Timer Remote Control Dual Power Supply Automatic Poultry House Door Opener 100‑240V UK Plug Item Type: Chicken Coop Door Controller Material: ABS Size: Approx. 19.5 x 10.2 x 7.2cm / 7.7 x 4.0 x 2.8in Installation Hole Distance: Approx. 18.5 x 6.5cm / 7.3 x 2.5in Control Function: Timer, Remote Control Waterproof Grade: IP44 Battery Box (Not Included): 4 x AA Batteries (Rechargeable batteries are recommended to be reusable and environmentally friendly) Note: About 9 months lifespan with regular AA batteries (actual usage time varies based on battery brand) Remote Control: 1 x 27A 12V Battery (Not Included) Remote Control Battery Lifespan: 1 Year Power Supply Mode: Choose either power supply or battery. It is not recommended to put the battery when the power supply is used, to avoid leakage of the battery for a long time. Auto Save Setting Time After Power Failure: No Application: Chickens, Ducks, Geese Gross Weight: Approx. 831g / 29.3oz