IOS Series 5 a Single Pole Ceiling Mount Occupancy Sensor with 360-Degree Dual T
Sensor Operation Occupancy. Combining Ultrasonic and Passive Infrared (PIR) technology, the IOS-CMP-DT-U ceiling-mount sensor turns lights on and off when occupants are detected in a given area. It covers an area of up to 1,600 sq. ft. (PIR), 1,000 sq. ft. (Ultrasonic) and includes an adjustable ambient light sensor override.