A lot of pet owners worry about the welfare of their unattended pets, specifically whether their beloved companions have sufficient freedom of movement when no one is around to open and close doors for them. One popular solution is to install pet doors in exterior or interior walls of the house. This gives pets an easy way to enter or exit the area. When shopping for dog doors, you have many options to choose from. The Freedom Patio Panel Pet Doors can be attached to your sliding glass door, while the Extreme Weather Pet Door is designed to allow pet entry while protecting the home from harsh outdoor conditions. Our Electronic SmartDoor™ provides yet another option, utilizing radio-frequency technology to unlock the door flap when your pet approaches.