The Philips Dynalite DUS804CS-UP is a surface-mount 360° ceiling sensor that combines ultrasonic (UP), PIR motion detection, infrared remote reception (IR), and ambient light sensing (PE) in one device. Ideal for offices, industrial buildings, and secure public areas, it provides intelligent, automated lighting control.
Key features include ultrasonic detection for motion behind obstacles, a segmented click-up bezel to mask portions of the sensing field, ambient light regulation for consistent illumination, and daylight harvesting for energy savings. The built-in IR sensor allows manual adjustments via a compatible NEC remote, while corridor hold functionality keeps connected areas lit when adjacent occupancy is detected.