The Pet Mate Electronic Pet Doors are some of the most reliable cat and dog doors made. The doors themselves are identical, the only difference is the size of the collar tags. There are special tags for cats and larger tags for dogs. The Pet Mate electronic will control access into the house, but allow any animal to leave (Controlled access is in one direction).

Note: The reason that the collar tags are sized differently for cats versus dogs is because dogs tend to elevate their heads more when using the pet door than a cat will. For this reason, the dog collar tags are a slightly larger magnet to activate the unlocking mechanism. The Dog Mate comes with 2-Large Collar Tags and the Cat Mate models come with 2-Small Collar Tags.

You may use small collar tags for small breed dogs, but to be sure we recommend that you use the appropriate collar tags for your type of pet. All collar keys work with all doors (interchangeable).

Features:
-The magnetic collar tags are water proof.
-The rigid plastic flap unlatches as the pet approaches activated by the small collar tag
-4 Way locking feature included (When used in manual mode only)  
-Fits on most standard collars up to 3/4 inch wide.
-The door is uni-directional, only controlling which animals can enter the house.
-Perfect for large cats and small breed dogs: (Dachshunds, Yorkshire Terriers, Shih Tzu)
-3 Year Manufacturer Warranty

For control in and out see the Solo Automatic Pet Door.