To keep cats off sofas, counters, tables, and shelves, you can
try electronic cat repellent devices.
Not exact matches
If you read the reviews from people who have used
electronic / mechanical based products like
Cat Stop and Scarecrow, you'll see things like «everyone who has
tried them knows that sprays and powders don't work.»
You'll want to go with an
electronic dog door if you're
trying to keep wildlife out or your
cat in, since it only opens for your dog.