Petsafe Microchip Cat Door

Microchip pet door helps keep out unwanted critters 5.91" W x 5.51" H flap suitable for cats and very small dogs Works with 15-digit microchip numbers only Four-way locking system controls when pets can come in and out, just in, or just go out Collar key available for pets who have not yet been microchipped Frame available in white for a clean look The Microchip Cat Door only opens when a pet with a programmed microchip walks up to the door, giving your cat the freedom to come and go as they please without letting in pests and critters. Programming a microchip to the door to detect your cat's unique 15-digit microchip code is quick and easy. You can even program up to 40 pets making it great for multi-cat families. You can also purchase an additional Microchip Cat Door Collar Key to give non-microchipped cats and dogs access to the door.  Features: Uses your cat’s 15-digit microchip or a collar key  Only opens for programmed pets keeping unwanted animals out of your home Progr