Skip to main content

WattStopper® DT-355 DT Series Dual Technology Line Voltage Low Profile Ceiling Mount Occupancy Sensor, 24 VAC/VDC, Passive Infrared/Ultrasonic Sensor, 1000 sq-ft Coverage, 360 deg Viewing, Ceiling/Swivel Bracket Mount

Selected WattStopper® DT-355 DT Series Dual Technology Line Voltage Low Profile Ceiling Mount Occupancy Sensor, 24 VAC/VDC, Passive Infrared/Ultrasonic Sensor, 1000 sq-ft Coverage, 360 deg Viewing, Ceiling/Swivel Bracket Mount
WattStopper® DT-355 DT Series Dual Technology Line Voltage Low Profile Ceiling Mount Occupancy Sensor, 24 VAC/VDC, Passive Infrared/Ultrasonic Sensor, 1000 sq-ft Coverage, 360 deg Viewing, Ceiling/Swivel Bracket Mount

Documents

Short Description

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.

Features

  • 95% RH, non-condensing, for indoor use only environmental conditions
  • This low profile dual technology occupancy sensor combines the benefits of passive infrared (PIR) and ultrasonic technologies
  • The sensor mounts on the ceiling with a flat, unobtrusive appearance and provides 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
  • Built-in light level sensor featuring simple, one-step setup
  • Zero crossing for long relay life
  • 1 x 108 operating cycle
  • Ultrasonic diffusion technology spreads coverage to a wider area (patent pending)
  • DIP switch simplifies sensor adjustments
  • LEDs indicate occupancy detection
  • Uses existing line voltage wiring and doesn't require a power pack
  • Six occupancy logic options give users the ability to customize control to meet application needs
  • Ballast load type

Specification

Material
Plastic
Minimum Order Qty
1
Order Interval
1
Color
White
Connection Type
Flying Lead
Coverage
1000 sq-ft
Temperature Rating
35 deg C
Time Delay
5 to 30 min
Viewing Angle
360 deg
Voltage Rating
24 VAC/VDC
Mounting Type
Ceiling/Swivel Bracket
Lamp Type
LED /Tungsten
Standard & Approvals
UL244A, UL508, RoHS Compliant
Application
Classrooms, Open Office, Large Offices, Computer Rooms and Commercial Use
Type
Line Voltage
Sensor Type
Dual Technology (PIR/Ultrasonic)
Response Frequency
40 kHz
Power Rating
0 to 1500 W
Dimensions
4.5 in Dia x 1.02 in D
Control Output
Auto-On/Off
Catalog ID
WATDT-355

Call it Something Else?