Leviton's ceiling mount occupancy sensor offers users a smart way to save energy in larger spaces, up to 1,000 sq. ft. in area. Using both passive infrared (PIR) and ultrasonic (U/S) detection technologies, the OSC10-M0W occupancy sensor is perfect for areas such as cafeterias, classrooms, warehouses, offices with cubicles and more. Leviton's ceiling mount occupancy sensors require a Leviton OSP-series power pack, which is sold separately. Save Energy with Leviton's Multi-Technology Sensors. The OSC10-M0W utilizes a complementary mix of passive infrared and ultrasonic protection to provide the best detection of new motion in a room as well as small motions of occupants already in the room. Passive infrared technology is ideal for initially turning lights on upon the detection of new motion in a room. Ultrasonic technology offers greater sensitivity, utilizing continuous reflective high frequency waves, optimal for keeping lights on in an occupied room. Leviton's sensor uses multiple technologies to combine the benefits of both PIR and U/S for unsurpassed performance and dependability. Color: White. Material: Thermoplastic.