The Wattstopper FS-305 is a slim, low-profile PIR fixture occupancy sensor operating at 1230VDC, supplied without a lens module for applications requiring a custom or separately sourced lens configuration. It automatically turns lighting on and off based on occupancy, supporting energy savings in commercial offices, corridors, and similar spaces. The lensless design provides contractors and specifiers flexibility to match sensor detection patterns to specific installation requirements using compatible lens accessories.