Add an additional pet to your PetSafe Electronic SmartDoor Pet Door or replace your current SmartKey Collar Key. The innovative PetSafe Smart Door Pet Door recognises the SmartKey Collar Key worn on your pet’s collar and unlocks the pet door. After your pet has passed through and the pet door no longer senses your pet's SmartKey Collar Key, the pet door automatically locks back into place. Up to 5 SmartKeys Collar Keys can be programmed. WARNING:Small children can pass through the door. Key Features: Additional SmartKey Electronic Key for the SmartDoor Electronic Pet Door Program up to 5 SmartKey Electronic Key units Waterproof collar submersible up to 1.5 metres Compatible with the SmartDoor Electronic Pet Door Collar Size:Fits on any collar up to 2 cm wide System Includes: Electronic SmartKey Collar Key Battery (RFA-67)
