ScareCrow automatic outdoor animal deterrent. Motion activated sprinkler instantly releases a startling burst of water when it detects an animal. Humane, safe, and environmentally friendly; uses only a small amount of water each time. Works on a wide range of animals including deer, raccoons, heron, cats, and dogs. No chemicals, shocks, or unsightly, costly fences or barriers. Works day and night for up to 4 months on a single 9V battery (not included). Covers approximately 1200 sq ft.