WATT STOPPER WS301B Wall switch occupancy sensor PIR 0-1200W 120/277V black

The WS-301 Passive Infrared (PIR) Wall Switch Sensor turns lighting or fan loads on and off based on occupancy and ambient light level. The sensor replaces existing wall switches and fits behind a standard decorator wall plate. Complies with 2011 NEC requirements. Zero crossing circuitry reduces stress on the relay and results in increased sensor life. Adjustable time delay and sensitivity. Custom two-tier Fresnel lens enhances detection at the desktop level. Sensor coverage tested to NEMA Guide Publication WD 7-2000.