The PW-311 is a passive infrared (PIR) 0 to 10 VAC dimmable wall switch occupancy Sensor. The PW-311 dual technology dimming wall switch sensor can provide outstanding energy control performance by turning lights OFF and ON based on occupancy and allow the user to increase or decrease the lighting levels. This device is designed to work in a variety of small and medium sized applications that have direct line-of sight to the device, including rooms such as private rest rooms, offices and small conference rooms. The low profile design and unique color matched, vandal resistant lenses provide appealing aesthetics. The sensor is designed to reduce the number of devices required in a space with full function multi-way control from one to four locations and works with 0 to 10 VDC dimming drivers and ballasts to control lighting loads including LED lighting Fixtures.