The Yard Sentinel Outdoor Electronic Pest Animal Ultrasonic Repeller is a popular choice among homeowners and gardeners. This device uses ultrasonic sound waves to repel pests such as raccoons, squirrels, and stray animals. The built-in siren horn adds an extra layer of security by emitting a loud sound when motion is detected. The repeller has a coverage range of up to 5,000 square feet, making it suitable for large outdoor areas. It is weatherproof and can be easily mounted on walls or fences. With its effective pest control and added security features, the Yard Sentinel is a must-have for anyone dealing with unwanted animals.