Sureflap manufacture revolutionary battery powered cat flaps and pet doors which read your pets existing identification microchip only unlocking for them if your pet has not been microchipped you can also use sureflap products with these sureflaps rfid collar tags these collar tags must be purchased separately and are not included as part of the cat flap or pet door delivery there is a simple one button learn process that you perform once for each of your pets with the rfid tag and the su