Knowledge base · Cat flaps
Will a microchip cat flap block every other cat?
Other cats, only if they were not programmed in. People, no. The shop page does not claim that.
On 14 November 2026 Sure Petcare's UK page for the Microchip Cat Flap said entry is selective and the reader is on the outside only, so any animal can exit. It said the flap stays locked for unwelcome cats and wildlife, unlocks for a pet whose microchip or RFID tag has been stored, and can remember up to 32 identities even after the batteries are removed.
A cat you accidentally taught the flap to accept is then an allowed cat. The manual lock is what the page describes for stopping your own cat, or for leaving the opening in or out only.
The page does not say the flap stops a person. A cat flap is still an opening in the door. When you need that opening shut, use the manual lock and read what a cat flap does not lock.
Sources
- SureFlap Microchip Cat Flap — Sure Petcare UK shop, accessed 14 November 2026.
On this site
Read microchip cat flaps.