Review on Cat Mate Inc Locking Door by Brandi Walker

I use this to give the cats access to the basement without letting the dog through, which is only slightly larger than them. Although he can get in, he will rarely use the cat door to get into the basement since he is not allowed in. But he will go down there if the door is left open to humans and no one stands guard. The only reason he goes there is to eat cat poop. This was a very simple $20 installation into the hollow interior door commonly used in any rental home. Make sure you measure twice, cut once and use silicone or sealant for the extra insulation/gasket. The switches on the door work as follows. Once a two-way barrier is in place, entering and exiting is prohibited. These locks come in handy when you want to keep pets separate. I will buy more of this model every time I need another.