WattStopper WS-250-W Motion Sensor, Passive Infrared Wall Switch Sensor, 120/277V - White

Brand: WattStopper
Model: WS-250-W
Condition: New
Warranty: 5 Years
SKU: 320922
In Stock

WattStopper WS-250-W Occupancy Sensors

Regular Price: $51.49
On Sale: $37.38
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WattStopper's Passive Infrared Wall Switch helps cut your electric bill as much as 60%. The cleverly designed switch turns lights on or off based on room occupancy and ambient light level, ensuring that the lights are only on when they need to be. The switch conveniently installs in place of most standard switches and will fit behind a standard wall plate. Its built-in light level sensor will keep the lights off when natural light levels are above a preset level of your choice. Lights turn off when a room is vacant, making unnecessarily lit rooms and the high costs they incur a thing of the past!

  • ASIC technology makes for less components and augmented reliability
  • Pulse Count Processing eliminates false offs without reducing sensitivity
  • Detection Signature Processing eliminates false triggers and 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
  • Custom two-tier Fresnel lens enhances detection at desktop level
  • Patented voltage drop protection
  • LED indicates occupancy detection
  • Electrical Ratings: 120/277VAC, 60Hz or 347VAC, 60Hz
  • Time delay adjustable from 30 seconds up to 30 minutes
  • Adjustable unit sensitivity from 20% to 100%
  • Compatible with all electronic ballasts and PL lamp ballasts
  • Coverage: Major motion 35' x 30'; Minor motion 20' x 15'
  • Dimensions: 2.6"L x 1.7"W x 1.55"D
  • Certifications: UL and CUL Listed
5 year warranty through the manufacturer
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Questions & Answers

Is there anyway to tell the sensor to stay on? I find that if I don't move around the lights go off when I don't wish them to.

by Mary M. from home PA on 08-20-2012

The Watt Stopper WS-250 has a adjustable delay timer that can be set from 30 seconds to 30 minutes based on your preference. You may want to test several timed delays to optimize energy savings while eliminating issues with lights turning off early. 

For more information on adjusting the timed delay feature, click here to view the Owners Manual (PDF) 

on 08-20-2012
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