Replace a SmartKey™ or add more pets to your PetSafe® Electronic SmartDoor.

The SmartKey™ fits most collar ID tags and uses RFID technology to send a signal that locks and unlocks the door flap when it senses your pet.

You can add up to 5 pets to your SmartDoor. Package includes 1 SmartKey™ and 1 battery (RFA-67).