SureFlap Microchip Cat DoorSureFlap Microchip Cat Door Stop unwanted animals entering your home and give your pet their own door key. When a registered pet approaches the cat door from the outside, it scans and recognises their identification microchip or collar tag, only unlocking for them. This prevents intruder animals entering the home, creating a secure environment for your cat. Click here for mounting bracket for Microchip Cat Flap Key Benefits: Prevents intruder animals