WattStopper’s CI-300 Passive Infrared (PIR) Ceiling Sensors automatically turn lighting on and off based on occupancy. The sensor mounts on the ceiling with a flat, low-profile appearance and provides 360 degrees of coverage. Advanced control logic based on RISC microcontroller provides: Detection Signature Processing to eliminate false triggers and provide immunity to RFI and EMI; Walk-through Mode turns lights off three minutes after the area is initially occupied; ideal for brief visits such as mail delivery. Built-in light level sensor featuring simple, one-step setup. LED indicates occupancy detection. CI-300 Series Sensors work with low-voltage momentary switches for manual control. DIP switch simplifies sensor adjustments. Clip-mounting system simplifies ceiling tile installation. Plug terminal wiring system for quick and easy installation. Available with isolated relay for integration with BAS or HVAC. Sensor coverage tested to NEMA Guide Publication WD 7-2000.