The DSW-302 Dual Technology Wall Switch Sensor turns lights OFF and ON based on occupancy and contains two relays for controlling two independent lighting loads or circuits. It combines the benefits of passive infrared (PIR) and ultrasonic detection technologies for high sensitivity to small and large movements. The DSW-302 replaces existing wall switches and fits behind a standard decorator wall plate.FEATURES AND BENEFITS:- High sensitivity and dense coverage for exceptional performance- Two relays for control of two separate lighting leads or circuits- Allows multi-way control from one of up to four control locations- Color-matched lens and low profile for appealing design- Optional neutral connection with break off tab to expose neutral terminals- 120/277VAC and 347VAC models- Defaults to Auto-ON to 50% operation for maximum energy savings