The ScareCrow Sprinkler is an effective, safe and easy way to keep pesky animals out of prized gardens and flower beds. Deer, raccoons, unwanted dogs and other animals are blasted with a short burst of water when they come within the 1,300 square feet the ScareCrow Sprinkler covers, and are scared away because of the sudden noise and movement. Just connect it to a garden hose and position it so the desired coverage area is within its 105-degree sensor radius. The animals learn to avoid that area in the future, and the long lasting 9-volt battery (up to six months) makes sure to keep them at bay day and night. The ScareCrow uses only 2 to 3 cups of water per deterrence, and can be linked to other ScareCrow systems to create an effective and large water barrier.