Yard Sentinel + Strobe Light Outdoor Ultrasonic Animal Repeller, Waterproof – Cat Repellent, Skunk Repellent, and Bird Repellent (1-Pack)

This device covers up to 5,500 sq. ft. using an adjustable infrared motion sensor and ultrasonic sound waves. It offers three protection modes and can be powered by batteries or an AC adapter. Weather-resistant and includes a strobe light.

• The description claims an effective range of approximately 75 ft. in front and 35 ft. to each side.
• The description claims optimal performance when mounted at least 16 inches off the ground.