Extra SmartKey allows you to give additional dogs access to your PetSafe Smart Door.
The Smart Door SmartKey is for use with PetSafe Smart Door products (PetSafe model numbers, PPA11-10709 and PPA11-10711). It's light weight enough for small dogs to wear; 1-1/4" tall, 1" wide and weighs 0.7 oz. The SmartKey can be attached to collars 3/4" wide or smaller. The key comes in black and uses and RFA-67 battery (included) that screws into the collar making it water-proof. Manufacturer offers a limited lifetime warranty.
PetSafe model number: PAC11-11045