As far as I know, the Cat Mate Elite Selective only works with the corresponding chip brands, but not with implanted chips like the Cat Mate Elite.

The Ref No. is decisive for these products. Some of them are described with other titles, depending on the seller.

With the cat door "Cat Mate Elite/ (Super Selective) Ref: 305W several cats can go in and out individually time-controlled. However, this only works with the RFID collar tag (chip that is attached to the collar). However, it does not work with the implanted chip.

The Cat Mate Elite/ Ref: 355 is also for multiple cats and works both with the RFID collar tag and with an implanted micro-chip. However, cats cannot go in and out individually on a timed basis. You can simply programme times when all cats are allowed in and out.