Wattstopper’s CI-200 Series Passive infrared (PIR) Ceiling Sensors provide 360° coverage to detect occupancy in the controlled area. These low profile sensors reliably control lighting in a variety of applications.FEATURES AND BENEFITS:- 360° coverage- User-adjustable time delay and sensitivity- Low-profile design- Built-in light level sensor- Isolated relay for use with HVAC or other control systems- ASIC enhances reliability and helps eliminate false triggers- Automatic or manual-on operation when used with a BZ-150 Power Pack