I did go next door to introduce myself to the next door neighbour. I found out that their cat is called Kevin. She said that they would try to keep Kevin inside more. So I wait to see if this will help things.

I did not know if the sensor near the front door was making any sound at all. A family member was here yesterday and when she was near the door she said she could hear a high pitch sound. Must be working.

I googled that breed of dog Fresia. She will do nicely.