The Wattstopper DT-200 is a dual technology corner-mount ceiling occupancy sensor suited for open offices, classrooms, and commercial spaces requiring precise occupancy-based lighting control. Combining passive infrared and ultrasonic technologies, it delivers 2,000 sq ft of coverage at 24VDC, 33mA with 40 kHz ultrasonic sensing for reliable minor-motion detection. Designed for integration with Wattstopper digital lighting management systems and compatible low-voltage power packs.