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Dual Tech Occupancy Sensor, 24VDC, Center Mount, 360°, 40Khz

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The DT-300 Series Dual Technology Ceiling Sensors combine the benefits of passive infrared (PIR) and ultrasonic technologies to detect occupancy. Sensors have a flat, unobtrusive appearance and provide 360 degrees of coverage.

Contact Rating No Isolated Relay
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  • Sensors work with low-voltage momentary switches to provide manual control
  • Patented ultrasonic diffusion technology spreads coverage to a wider area
  • LEDs indicate occupancy detection
  • Uses plug terminal wiring system for quick and easy
  • Eight occupancy logic options provide the ability to customize
  • Available with isolated relay for integration with BAS or HVAC
  • BAA/TAA-compliant models available


General Info
Product Line Wattstopper
UPC Number 754182913831
Country Of Origin China
Features Motion Sensor, IR (Infrared), Indicator Lights
Application Sector Commercial
Warranty Type 5-Year
Product Width US 4.0 in
Product Weight US 0.58 lb
Product Volume US 47.5 cu in
Product Depth US 5.0 in
Product Height US 2.0 in
Additional Information
Product Environmental Profile Yes
Technical Information
Sensor Type Ocupancy
Amperage 35 A
Indicator LED Light
Sensing Range 360 degrees, 1000 sq. ft.
Voltage 24 V, 24 V
Connection Type Wired



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Questions & Answers

I have a DT-305 and the two incandescent light fixtures that it controls are blinking on and off constantly. Is this a defective sensor or power pack issue?

Asked by: Bruce
Please reach out to our tech. support team for further assistance troubleshooting this issue. Legrand Technical Support: Phone: 1 800-879-8585, Option 3 then Option 1 Mon - Fri: 7am - 7pm CST (excluding holidays)
Answered by: Tier 1 Tech Support
Date published: 2023-03-27

is the DT 300 ceiling sensor compatible with the DT 305 ceiling sensor, to use in the same lighting system

Asked by: Scott
Hi Scott, Yes, these sensors can be hooked up in parallel to work together on the same system.
Answered by: Tier 1 Tech Support
Date published: 2023-03-07


Asked by: Anonymous
Yes, you can install up to 4 sensors on one power pack.
Answered by: Legrand Technical Support
Date published: 2022-12-06

Can a dimmer switch be used in conjunction with this occupancy sensor?

Asked by: Mike25
Yes, we have the DCLV2 0-10v wall dimmer which is also compatible with our BZ-series power packs
Answered by: Tier 1 Tech Support
Date published: 2022-07-06

I want to use the internal isolated (DT300) relay output 24VAC/Vto signal occupancy vs non-occupancy to my controller. however, the controller has 0-5, 0-10 VDC, 4-20mA, and dry contact inputs.please let me know how to match output to controller input?

Asked by: CuriousMatt
The isolated relay on the DT-300 is a dry contact which I would recommend you to use unless your controller need voltage. If you are needing more It would be best to contact Wattstopper Tech Support at 1-800-879-8585 option#1 for us to gather more information to help resolve your issue.
Answered by: Tier 1 Tech Support
Date published: 2022-06-06


Asked by: GARY
This sensor is designed to be installed indoors. It is not weather rated and the elements would damage the sensor. If you would like to discuss alternatives, please call 1-800-879-8585 Option 1 for Technical Support.
Answered by: Tier 1 Tech Support
Date published: 2022-05-31

is it possible to order the depluggable terminal and spring clips separately ?

Asked by: Anonymous
Hello, We unfortunately do not sell the depluggable terminal and spring clips separately at this time. Please feel free to give us a call if you need further assistance. legrand Contact information: Phone #: 844-957-3783 - Option 1, followed by option 2 for Technical Support. Monday - Friday | 8:00am - 6:00pm Eastern Standard Time (excluding holidays) Best Regards,
Answered by: Justin
Date published: 2022-03-18

Is the Wattstopper DT-300 listed by a National Recognized Testing Laboratory (NRTL), such as Underwriters Laboratories, Inc. (UL)?

Asked by: Drew
Yes, the DT-300 is UL listed.
Answered by: Tier 1 Tech Support
Date published: 2022-01-12
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