With a coverage of 2,500 square feet (212m²), this ECO friendly Pest-Stop repeller covers a typical house. As well as ultrasonic, the repeller uses electromagnetic waves and is highly effective against rodents and most crawling insects. It is eco-friendly and uses less energy by way of a unique Stop-Start cycle. The repeller will not affect domestic pets, such as cats, dogs, birds and fish, and also features a pet-safe setting for use around rodent pets (hamsters, rabbits, pet mice, rats and gerbils).