Electronic SmartKey

Give your pet the freedom they crave with this extra PetSafe Electronic SmartKey for SmartDoor. PetSafe SmartDoors use RFID technology to allow your pets to come and go as they please. When your pet gets close to the SmartDoor, it will recognize the SmartKey on its collar and unlock. But when your pet's out of range, it will automatically lock, keeping unwanted animals out of your home. The SmartKey fits on most identification tags and each SmartDoor can provide access for up to 5 pets. Features: Compatible with any PetSafe Electronic SmartDoor (not compatible with SmartDoor Plus) RFID technology allows pets to use the SmartDoor by sending a signal to the door to lock or unlock, depending on their location Can be used to replace a SmartKey or to give another pet access to the SmartDoor Lets pets access the door but keeps unwanted animals out Battery included (lasts between 3-6 months) Fits on most collar identification tags