Rodents will flee - not pets!
For best pest management effect Topo Stop should be installed in closed quarters such as the attic or in the crawling space underneath the house. By physical laws the Topo Stop ultrasonic sound waves will never reach any living spaces since they cannot penetrate even a thin wall paper.
So in consequence when Topo Stop is installed as per our recommendations the ultrasonic sound waves will in no way affect humans or pets!