The Microchip Pet Door Connect lets you to stay connected to your pet from anywhere. Combined with the SureFlap Hub (included) and Sure Pet care app you can lock the door remotely, receive notifications on your pet's movements and monitor changes in their activity over time. the Pet Door Connect is Suitable for Cats and Small Dogs and uses your pet's existing microchip as an electronic door key, keeping out unwanted intruder animals. the Sure Pet care app lets you know when your pet enters or leaves the house and sends a notification when an intruder has tried to get in. the product is battery powered (4 x C cell not included) and can be installed in doors, windows and walls. Works as a standard Microchip Pet Door if no hub is connected, a hub can be added at a later date to enable connectivity. the Pet Door Connect is a smart device that can be controlled and monitored from anywhere via the Sure Pet care app, like other smart home and pet technology products.