Practical cat flap for the multi-cat household . Use the security programming mode on the DualScan microchip cat flap for cats so they can return to the house at any time if they should get outside through a window. The product has individually adjustable entry and exit authorisations. Thanks to DualScan technology, you decide which cat stays in the house and which is allowed outside. For uninvited visit (foreign cats or wild animals like raccoons) the flap remains closed. It works with all conventional microchip formats and the SureFlap RFID collar tag, which is not included here. The storage process functions simply at the push of a button and the authorizations can be adjusted at any time. The flap is suitable for installation in doors, glass and walls. A manual 4-way lock prevents cats from leaving or entering the house. With this device you can register up to 32 different animals or microchip numbers.