WattStopper® DT-300 Low Voltage Ceiling Mount Occupancy Sensors, 24 VAC/VDC, Dual Technology (PIR/Ultrasonic) Sensor



WattStopper® DT-300 Low Voltage Ceiling Mount Occupancy Sensors, 24 VAC/VDC, Dual Technology (PIR/Ultrasonic) Sensor

  • NCE Part No: 311426
  • MPN: DT-300
  • UPC: 75418291382

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PIR technology senses occupancy by detecting the difference between heat emitted from the human body in motion and the background space. Relying on a clear line-of-sight view, passive infrared sensors make 100 percent coverage cut off possible. These sensors utilize a unique fresnel lens which divides the coverage area into zones, enhancing detection of small movement. Using the Doppler principle, ultrasonic sensors work by bouncing ultrasonic sound waves off objects in an area and measuring the time it takes for the waves to return. Movement by a person in the area causes the sound waves to return at a changed frequency, resulting in a Doppler shift and occupancy detection.

WattStopper® Ceiling Mount Occupancy Sensors, Low Voltage, 24 VAC/VDC, 43 mA, Dual Technology (PIR/Ultrasonic) Sensor, 1000 sq-ft Coverage, 360 deg Viewing, 5 to 30 min Delay, LED Lamp, 40 kHz Response, Flying Lead, Auto-On/Off Control Output, Ceiling/Swivel Bracket Mount, 35 deg C, Plastic, White, 4.5 in Dia x 1.02 in D


Coverage      :      1000 sq-ft
Voltage Rating      :      24 VAC/VDC
Standard      :      UL244A, UL508
Sensing Range      :      1000 sq ft
Sensor      :      Dual Technology
Supply Voltage      :      24 VDC/VAC
Response Frequency      :      40 kHz
Indicator      :      LED
Mounting      :      Swivel Bracket
Connector      :      Flying Leads
Brand Name      :      Legrand-Wattstopper
Control Output      :      Auto-On/Off
Environmental Conditions      :      95% RH, non-condensing; for indoor use only
Load      :      1 Amp @ 30 VDC/VAC
Enclosure      :      Plastic Housing
Operating Cycles      :      100M
Type      :      Low Voltage
Target Size      :      1000 sq ft
Operating Temperature      :      35� C
Body      :      Plastic Housing
Sub Brand      :      Wattstopper
Temperature Rating      :      35 deg C
special features      :      Dual Technology
Application      :      Classrooms, Open Office, Large Offices, Computer Rooms


  • 95% RH, non-condensing, for indoor use only environmental conditions
  • This dual technology ceiling sensor combines the benefits of passive infrared (PIR) and ultrasonic technologies to detect occupancy
  • Sensors have a flat, unobtrusive appearance and provide 360 deg of coverage
  • Detection signature processing eliminates false triggers and provides 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
  • Available with built-in light level sensor featuring simple, one-step setup
  • Sensors work with low voltage momentary switches to provide manual control
  • 1 x 108 operating cycle
  • Patented ultrasonic diffusion technology spreads coverage to a wider area
  • Uses plug terminal wiring system for quick and easy installation
  • Eight occupancy logic options provide the ability to customize control to meet application needs
  • 1 A at 30 VDC/VAC load


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