The Westgate Mfg KEB-EFS01RE is a high bay external PIR sensor with 0-10V bilevel control, rated for 120277V AC with a 10A relay and up to 40 ft detection range, built for warehouses, manufacturing facilities, and large-area commercial high bay installations. IP40-rated construction and an optional remote control interface provide flexible configuration without ladder access after installation. Carries a 7-year warranty.