https://squareblogs.net/peanut....self8/adding-a-cat-f
A cat flap is a door that allows your pet to leave and enter the house at their convenience. It can be installed in doors, windows and even in walls. It can be opened by pushing through a section of its body. Microchip cat flaps let you open the door by recognizing your cat's unique chip. Infrared and magnet cat flaps require your cat to wear a collar equipped with either a magnet or an infrared device that will activate them. What is a flap for cats? A cat flap is a tiny hole in the door or window that allows y