Brinsea Products presents ChickSafe Eco and Advance Automatic Chicken Coop Door Openers. The Eco model features a sensor that detects light levels and will trigger the hen door to open or close depending on if the sun is rising or setting. The Advance model includes this same feature but also has timing and override functions for owners who would rather set specific times for when the hen door will open and close. It also includes a lie-in feature, which allows users to delay the opening of the door in the morning on two out of seven days. The door openers can be easily fixed to most chicken coops with the two screws supplied and require no setup or calibration. Both models operate in all weather conditions and include a three-year guarantee.