These Occupancy and Vacancy Sensors from Pass and Seymour feature fixed time delays, eliminating the need for the homeowner to make adjustments. For those who desire more flexibility, there's a model with an adjustable time delay and ambient light sensing. All models have 180-degree, 600-square-foot coverage. An LED locator light provides visibility in darkened rooms. For FREE information, visit http://pb.hotims.com/23726-326