Leviton offers a wide selection of motion sensors that use passive infrared, ultrasonic or a combined multi-sensing technology. Occupancy Sensors provide automatic ON/OFF switching of lighting loads for enhance convenience, security and long-term energy savings. The Passive Infrared (PIR) units respond to changes in the infrared background by turning lights ON when people enter space being monitored, and OFF when the space is unoccupied. The Ultrasonic (US) units transmit an ultrasound signal and monitor changes in the signals return time to detect occupancy. Multi-Technology units combine PIR and US sensing technologies for highly accurate monitoring with minimum false triggering. There are Leviton sensors for monitoring conference rooms, restrooms, stockrooms, stairwells and parking garages in commercial and institutional facilities, and there are also sensors designed for monitoring porches, patios, hallways and backyards in residential settings
