The Ferplast Swing Microchip L is an innovative pet door for large cats and small dogs, equipped with a selective microchip recognition system. Made from durable plastic and featuring a Wind Stopper system to prevent draughts, this pet door offers 4-way access control: exit only, entry only, entry and exit, or total lock. It allows the registration of up to 30 standard ISO 11784 microchips and includes a last-passage indicator to let you know if your pet is inside or outside the house. It operates on batteries (not included) and features a low battery indicator.