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Dual Tech Occupancy Sensor, 24VDC, center mount 360°, 40 Khz

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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 Occupancy
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

Can I use a 4 square box with a single gang mud ring to mount DT-300 ceiling sensors & LMDC-100 occupancy sensors?

Asked by: Jeff
An Octagonal J Box is recommended for the DT-300. A standard Single Gang box is appropriate for an LMDC-100. (Please note these 2 devices are not compatible with each other.)
Answered by: Tier 1 Tech Support
Date published: 2023-09-12

Is the DT-300 compatible with a BZ-250

Asked by: RValencia
Yes, the DT-300 is compatible with all of our BZ-series power packs
Answered by: Tier 1 Tech Support
Date published: 2023-07-10

I have an existing system with BT-150 power packs, DT-300 Ceiling Mount Occ Sensors, and LP8 Panel. I am looking to add dimming wall switches to this system. What part numbers do I need? Can this be a wireless switch programmed to the sensor?

Asked by: Dan
Hi Tier 1 Tech Support - thank you for responding. I mistakenly said dimming. I do not need dimming switches I am just hoping to find wireless switches so that i can program them to the existing DT-300 occ sensors without opening up walls/ceilings.
Answered by: Dan
Date published: 2023-06-29

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
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