Leviton OSSMTMDR MultiTechnology PIRUltrasonic Wall Switch Occupancy Sensor Red

From the Manufacturer Occupancy sensors have two tasks: keeping the lights ON while the space is occupied and, turning the lights OFF when unoccupied. The PIR sensors provide immunity to false ON through a specialized Fresnel lens which divides the field-of view into sensor zones. When a person passes into or out of a sensor zone, the sensor detects motion and switches the lights ON. The U/S sensors provide maximum sensitivity and range in difficult spaces with irregular shaped rooms and partitions that can block the PIR field-of-view. A pair of U/S sensors will detect Doppler shifts caused by motion in a space preventing false OFF. These sensors are more sensitive to small movements since they do not rely on zones. Multi-Technology PIR/ Ultrasonic Wall Switch, Occupancy Sensor, 180 Degree, 2400 Sq.-Feet, Red. Provide automatic lighting control for energy savings and convenience in a variety of commercial applications: Retrofit, Private and executive offices, Conference rooms, Storage areas, Restrooms, Classrooms, Lounges, Training areas, Multi-location switching