<html><body><br>Hello Droolers,<br><br>I am perusing the Drs Foster and Smith catalog and came across the pet dorbell! This is a wallmounted thing, but it rings when the dog sits at the door there is a "key" that goes on the buckle of a collar...so for all of those out there whose pooches won't bark or scratch at a door to be let out, but just sit in front of the door this may the answer.<br><br>Karen</body></html>