ULTRA WALL SWITCH OCC SENS 120/277 GRY

The UW-100 ultrasonic wall switch sensor can turn lights OFF and ON based on occupancy. It is characterized by high sensitivity to small and large movements, appealing aesthetics, and a variety of features. Complies with 2011 NEC requirements. Detection Signature Processing eliminates false triggers and provides immunity to RFI and EMI. Zero-crossing for long relay life. Choice of Manual-ON or Auto-ON operation. Selectable walk-through mode turns lights off three minutes after the room is initially occupied if no motion is detected after the first 30 seconds. Selectable audible and/or visual alerts for impending shutoff. Test mode allows quick and easy adjustments. In automatic mode, sensor returns automatically to Auto-ON after lights are turned off manually; ideal for presentations. LED indicates occupancy detection. Optional light level sensing with simple setup. Service mode allows sensor to operate as a service switch in the unlikely event of a failure. Sensor coverage tested to NEMA Guide Publication WD 7-2000. Compatible with decorator wall plates.