The Contech Electronics Scarecrow Motion-Activated Sprinkler presents an innovative, humane way to keep pets and wildlife from disturbing your yard and garden without the use of complicated traps or potentially hazardous chemicals. The sprinkler comb ... The Contech Electronics Scarecrow Motion-Activated Sprinkler presents an innovative, humane way to keep pets and wildlife from disturbing your yard and garden without the use of complicated traps or potentially hazardous chemicals. The sprinkler combines a surprise spray of water with unexpected motion and noise to create a safe, effective deterrent to unwanted visitors, helping keep your garden looking its best. .caption { font-family: Verdana, Helvetica neue, Arial, serif; font-size: 10px; font-weight: bold; font-style: italic; } ul.indent { list-style: inside disc; text-indent: 20px; } table.callout { font-family: Verdana, Helvetica, Arial, serif; margin: 10px; width: 250; } td.callout3-c26 { height: 100 percent; background: url('http://g-ecx.images-amazon.com/images/G/01/th/content_26/Q1_2009/c26-callout3.png') repeat-y; border-left: 0px solid #999999; border-right: 1px solid #999999; padding: 10px; width: 250px; } ul.callout { list-style: inside disc; t | Uses ultrasonic sound to deter nuisance barking |