Leviton® OSC10-M0W Low Voltage Ceiling Mount Occupancy Sensors, 24 VAC, Multi-Technology (PIR/Ultrasonic) Sensor

Passive infrared (PIR) is an excellent and precise technology for initially turning the lights-on, but lacks sensitivity for minor motion at distances. Ultrasonic (U/S) technology provides maximum sensitivity with continuous reflective high frequency waves. This is optimal for keeping the lights ON. Leviton's multi-technology sensor combines the benefits of both PIR and U/S technologies for unrivaled performance and reliability.