Wattstopper WS-250-I Passive Infrared Wall Switch Occupancy Sensor, 120/277V - Ivory

The WS-250 Passive Infrared (PIR) Wall Switch Sensor turns lighting on and off based on occupancy and ambient light level. It replaces existing wall switches and fits behind a standard decorator wall plate. Pulse Count Processing eliminates false offs without reducing sensitivity. Detection Signature Processing eliminates false triggers; provides immunity to RFI and EMI. Zero crossing circuitry reduces stress on the relay and results in increased sensor life. Time delay adjustment from 30 seconds up to 30 minutes. Adjustable unit sensitivity from 20% to 100%. Light level sensor holds lights off when ambient lighting is above the preset level.