Entry and exit are controlled by electronic I.D. (2 I.D.s included in delivery) for up to 9 cats, keeping all other animals away. An LCD display indicates selected access and inlet status, as well as location and time details since the last operation of the flap for up to 3 cats. A battery status indicator is included. The device requires 4 AA batteries (not included in delivery). A timer function controls access for all of your cats, allowing you to prevent exit at night. It features self-cladding for mounting depths up to 50 mm, making it suitable for single and double glazing and all panels up to a thickness of 50 mm. A tunnel for wall installation is available. The flap includes draught-free, weather-resistant brush seals.