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Dual Tech Wall Switch Occupancy Sensor, 120/277V, Lt Almond

DSW-301-LA Wattstopper
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The DSW-301 dual technology wall switch sensor turns lights OFF and ON based on occupancy. It combines the benefits of passive infrared (PIR) and ultrasonic detection technologies. The DSW-301 replaces existing wall switches and fits behind a standard decorator wall plate.
Color Light Almond
Voltage 120/277 VAC
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  • Zero-crossing for long relay life
  • Vandal resistant lens combines precise coverage with durability
  • Selectable walk-through mode turns lights off three minutes after initial occupancy if no motion is detected after the first 30 seconds
  • Test mode allows quick and easy adjustments
  • Selectable audible alert for impending shutoff
  • In automatic mode, sensor returns automatically to Auto-ON after lights are turned off manually; ideal for presentations
  • Four occupancy logic options to customize control to meet application needs


General Info
Product Line Wattstopper
Color Light Almond
UPC Number 754182935420
Country Of Origin China
Features IR (Infrared), Motion Sensor
Switch Type Motion Sensor
Application Sector Commercial
Product Width US 3.0 in
Product Weight US 0.45 lb
Product Volume US 35.77 cu in
Product Depth US 4.77 in
Product Height US 2.5 in
Technical Information
Response Frequency 50/60 Hz
Sensor Type Occupancy
Number of Buttons 1
Amperage 8.3 A
Wattage 1200 W
Mounting Type Box
Sensing Range 180 degrees, 1050 sq ft
Voltage 120/277 V
Connection Type Wired
Load 1000W


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Questions & Answers

Does holding the button down for 10 seconds return this to operation as a regular light switch that ONLY works with manual button press? NO motion/light control or auto-off?

Asked by: Matthew
No, to put the switch/sensor into Service Mode (where it will function like a manual switch), simply turn the Ultrasonic Sensitivity trimpot to Minimum.
Answered by: Tier 1 Tech Support
Date published: 2024-01-22


Asked by: RICK
Wattstopper warranties its products to be free of defects in materials and workmanship for a period of five (5) years.
Answered by: Justin
Date published: 2024-01-19

can you install a dsw-301 occ switch along with a DT-305 ceiling occ sensor? with a bz-50 PP?

Asked by: greg
It is recommended that you chose one or the other. The sensors will not work in conjunction with each other.
Answered by: Tier 1 Tech Support
Date published: 2023-09-12

I have 3 x 301's in a row. please post a wiring diagram for more than 2 devices in a row. Also when should use the walk thru mode ?

Asked by: dale
We do not have a diagram that shows more than 2 sensors. You should connect the primary switch, install the second per the diagram and then mirror the same with the remaining 2 switches. A short hallway that is not used often or a storage closet application are places where Walk through mode may be appropriate.
Answered by: Tier 1 Tech Support
Date published: 2023-09-12

Can this be use on one side of a 3 way system with the other switch a regular 3 way>

Asked by: cody
Hello Cody, The DSW301 Occupancy sensor supports Multi-way functionality for use with additional DSW301 sensors. The DSW301 will not work with a traditional 3-way switch and must be paired with another DSW301 for 3-way applications. Best Regards, Technical Support
Answered by: Justin
Date published: 2023-06-16

Can I control bathroom exhaust fan with this switch?

Asked by: Omar G
Hello, Occupancy Dual Technology Sensors DSW301 will support the following loads: 120VAC; 50/60Hz or 277VAC; 50/60Hz 120VAC: 0-1000W ballast, LED, tungsten, 1/6 hp 277VAC: 0-1200W ballast, LED, 1/6 hp Best Regards, Technical Support
Answered by: Justin
Date published: 2023-05-26

Will a DSW301W work without a ground connection?

Asked by: Anonymous
Hello, DSW301W - The ground wire (green) must be fastened to ground for the sensor to work properly. Best Regards, Technical Support
Answered by: Justin
Date published: 2023-05-04

Is the watt stopper dsw 301w  also a 3-way switch

Asked by: Anonymous
Hello, DSW-301-W supports the following Multi-way features: (Total of 4 Sensors) The Multi-Way capability is available on all models. Sensors can easily be wired together for convenient control of a common load. When wiring this way, only use 300 series sensors. Multi-Way in 300 series is not compatible with prior sensor models. The following principles apply for Multi-Way: • All units should be on the same phase. • All units can see each other’s push-button events and respond accordingly. • All units can see each other’s PIR trigger event. The response will be determined by the Light Level setting and/or conditions of the space of the detecting sensor. • The time delay for all units is defined by the unit with the smallest time delay Best Regards, Technical Support
Answered by: Justin
Date published: 2023-03-06
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