He already had locking pet door on hand, which he hacked to regulate the egress and ingress of his cat automatically. He installed a pair of reed switches to determine if the door had been opened ...

Pawport's second-gen smart pet door lets your pets out with no interaction. It's not only convenient, but also much safer .

The best sliding glass doggy doors provide easy access to your yard or outdoor space, so dogs can come and go on their own.