Occupancy Sensors Adaptive Technology Ceiling Sensors Dual Technology 2000 sq. ft., Photocell & Relay 2000 sq. ft. 1000 sq. ft., Photocell & Relay 1000 sq. ft. 500 sq. ft., Photocell & Relay 500 sq. ft. Ultrasonic 2000 sq. ft., Photocell & Relay 2000 sq. ft. 1000 sq. ft., Photocell & Relay 1000 sq. ft. 500 sq. ft., Photocell & Relay 500 sq. ft. Passive Infrared 1500 sq. ft., Photocell & Relay 1500 sq. ft. 600 sq. ft., Photocell & Relay 600 sq. ft. Adaptive Technology Wall Mount Sensors Dual Technology 1600 sq. ft., Photocell & Relay 1600 sq. ft. Passive Infrared 1600 sq. ft., Photocell & Relay 1600 sq. ft. High Bay, 120 Linear ft., Photocell & Relay High Bay, 120 Linear ft. Adaptive Technology Wall Switches With Audible Time Out Indicator Ivory, 120V AC White, 120V AC Ivory, 277V AC White, 277V AC Without Audible Time Out Indicator Ivory, 120/277V AC White, 120/277V AC Gray, 120/277V AC Standard Wall Switches 1200 Sq. Ft. Coverage Ivory, 120/277V AC White, 120/277V AC 900 Sq. Ft. Coverage Ivory, 120V AC White, 120V AC Ivory, 277V AC White, 277V AC 2 Circuit Unit White, 120/277V AC PIR Ceiling and Wall Mount Sensors Ceiling Mount, 1000 sq. ft. Ceiling Mount, 500 sq. ft. Wall Mount, 1600 sq. ft. Wall Mount, 75 linear ft. Ceiling Mount, For DDC Systems Adapter Plate Control Units and Add-a-Relays 120V AC Control Unit 230V AC Control Unit 277V AC Control Unit 347V AC Control Unit Add-a-Relay Sensors for LonWorks Ceiling Mount, 700sq. ft. Wall Mount, 1600 sq. ft. Wall Mount, 75 linear ft. Adapter Plate