In and out of the house do consider a dog door infrared model
November 18th, 2008 by the writerIf you are shopping for the most practical yet easy way to allow your dog or cat in and out of the house do consider a dog door infrared model. Infrared technology is used on both dog and cat doors to allow animals access in and out of the home. This technology works via a digital sensor on the collar that corresponds to the door. When the pet with the collar sensor wants to go out or come in the door opens. Other animals like strays and unauthorized pets cannot get through the door.
There are various manufacturers who offer this type of door.