Havahart Critter Ridder Sprinkler Animal Repeller For Outdoor PestsDefend your yard and garden from destructive nuisance animals with the Critter Ridder Motion Activated Repellent & Sprinkler. Using a built in sensor, this unit can detect movement from up to 60 feet away (depending on conditions). When the sensor is triggered, the repellent delivers a jet of water toward the animal for approximately 5 seconds. Most animals are startled by the sudden burst and scurry away. This unit is ideal for repelling a variety of