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Dual Tech Occupancy Sensor 24V DC, center mount 360°

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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 1 A @ 30 VDC/VAC
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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 754182913824
Country Of Origin China
Features Indicator Lights, IR (Infrared), Motion Sensor
Application Sector Commercial
Warranty Type 5-Year
Product Width US 4.5 in
Product Weight US 0.33 lb
Product Volume US 59.0 cu in
Product Depth US 2.1 in
Product Height US 4.5 in
Product Length US 4.5 in
Additional Information
RoHS Conformant Yes This product meets the material restrictions of Article 4 of the RoHS Directive (2011/65/EU), including Commission Delegated Directive 2015/863.
Security   Yes This product is ioXt certified
Product Environmental Profile Yes
Technical Information
Sensor Type Occupancy
Amperage 43 A
Indicator LED Light
Sensing Range 360 degrees,1000 sq ft
Voltage 24.0 V
Connection Type Wired



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Questions & Answers

Has this item been discontinued?

Asked by: David
Hello David, I have checked our inventory, and discontinued list. The DT-305 is not an obsolete item, and is available
Answered by: Justin
Date published: 2024-06-25

I work as a maintenance tech at a school. A student has removed the faceplate from the sensor. Is there a replacement faceplate available?

Asked by: Mark
Wattstopper does not sell a replacement for the faceplate, but the Technical Support Department may be able to help. Please contact Technical Support at 800-879-8585 and one of our technicians will be happy to assist.
Answered by: Justin
Date published: 2024-05-09

I have 3 occupancy sensors that do seem to shut off the lights when unoccupied. I see the red and green light flickering meaning we clearly have power.

Asked by: Serge St Pierre
The red and green are activity LEDs for the sensors, if the LEDs continue to flash when you stand still, then the sensor is likely false tripping. I suggest to start with placement, assure all sensors are 5-6' away from air supplies this is common to false trip the sensors causing lights to either stay ON or OFF. If more assistance is needed, please call our Technical Support Team 1-800-879-8585
Answered by: Justin
Date published: 2024-03-05

Is there a diagram that shows how a LVSW-104 connects to a LC8 and a DT-300 and so on? This is beyond frustrating trying to find a diagram that shows how this system is actually wired. Makes one want to use Leviton!!!

Asked by: DennisB
Yes, please refer to page 15 and 16 of the LC8 User Manual which shows connectivity for switches and sensors . The LVSW-104 contains 4 separate 2 Wire Momentary switches, so you will follow the diagram for '2-Wire Momentary Push Button' connections. The LC8 User Guide can be found here: https://www.legrand.us/lighting-controls-and-systems/lighting-control-panels/stand-alone-panels/lc8-lighting-control-panel-includes-lcps-120-277y/p/lc8-120-277 If you need additional assistance, please call our Technical Support department at 800-879-8585,
Answered by: Tier 1 Tech Support
Date published: 2024-02-01

What is the IP rating of DT-#100 series?

Asked by: Anonymous
We do not have a DT-100 sensor, if your question concerns the DT-305, this device is specified for indoor use only and does not have an IP rating.
Answered by: Justin
Date published: 2024-01-31

Is it possible to have one sensor control two power packs? If yes, is there a wiring diagram of how this is accomplished?

Asked by: Jason
Jason, Yes You will use only one RED from the LV side of the power packs and cap the other. Then wire the following two wires in parallel, Blue - control output and Black - common.
Answered by: Justin
Date published: 2024-01-25

I would like to use this occupancy sensor only to control HVAC via the external contact not lighting. Is it possible to connect 24V power directly to the sensor and avoid using the battery pack?

Asked by: Joe
Yes, the sensor can be powered via another 24V source, but it there's any question as to the voltage level or stability of the external source, we would recommend using one of our power packs.
Answered by: Tier 1 Tech Support
Date published: 2024-01-22

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
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