Welcome to the cat future, all doors will scan your cat’s microchip (RFID) and if it’s your cat it can come inside…

Keeps out unwanted cats by using your cat’s existing microchip number without the need for a collar. Automatically detects light levels and can keep your cat in at night. Designed by a vet.

Related:

RFID for Makers. Build this kit to read radio frequency ID tags. Subscribers–read this article now in your digital edition!