This Plug-In PIR Motion Sensor is designed for the UHB series UFO High Bay Fixtures that being used in commercial and industrial installations. Typical applications include warehouses, distribution centers, parking garages and public area. The sensor supports 0-10V dimming. It's a line voltage sensor, no additional power pack is required. It uses passive infrared technology to detect motion, suitable for detecting tangential motion in area with stable ventilation and clear line of sight.