peReplace 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.

PetSafe Electronic SmartKey for SmartDoor Features:

• Unlocks Door for Your Pet - The SmartKey lets your pet come and go; fits most collar ID tags
• Indoor and Outdoor Access - Uses RFID technology to send a signal to the SmartDoor to lock and unlock the flap; helps keep out unwelcome animals
• Multiple Pets - Use as a replacement or add more pets to your SmartDoor
• Door Compatibility - Works with all sizes of the PetSafe Electronic SmartDoor
• Long-Lasting - Battery is included and lasts 3-6 months, depending on use