Yard Sentinel, Outdoor Electronic Pest Animal Ultrasonic Repeller, with Ac Adaptor, Extension Cord, Model: HR131 , Home & Outdoor Store THE ORIGINAL: The first and still the most popular ultrasonic electronic pest deterrent on the USE ANYWHERE: Includes the option to set Day, Night or 24-Hour protection for your garden, lawn, EXTENDED COVERAGE: The most powerful PIR infrared motion sensor available. Use the sonic repeller WEATHERPROOF: Unique seal and design lets you set it anywhere. The Yard Sentinel comes with the VERSATILE: Adjustable frequency dial allows you to get rid of cats, dogs, mice, squirrels, rats,