PetSafe Electronic - Security Boss Single Pane Lockable Patio Pet DoorKeep Cat Indoors & Allow Dog Outside Security Boss Manufacturing LLC now offers the SmartDoor Patio Pet Door as an option for sliding glass doors. This electronic door is perfect for customers who want to control the access of their dog and keep other animals from potentially using the door. This pet door is ideal for those who might have a dog that can go outside, but you want to keep the cat indoors. Only pets with a collar tag will activate this