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Ultrasonic Ceiling Occupancy Sensor, 24VDC, 500 sq ft

UT-305-1 Wattstopper
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Wattstopper’s UT-300 Ultrasonic Ceiling Sensors automatically turn lighting on and off based on occupancy. The sensors mount on the ceiling with a flat, unobtrusive appearance and provides 360° coverage.
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  • Architecturally appealing low-profile appearance
  • Ultrasonic diffusers give more comprehensive coverage
  • Accepts low-voltage switch input for manual-on operation
  • Plug terminal wiring for quick and easy installation
  • Walk-through mode increases savings potential
  • Automatic or manual-on operation when used with a BZ-150 Power Pack


General Info
Product Line Wattstopper
UPC Number 754182915170
Country Of Origin China
Features Indicator Lights
Application Sector Commercial
Product Width US 4.0 in
Product Weight US 0.35 lb
Product Volume US 44.55 cu in
Product Depth US 4.5 in
Product Height US 2.2 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.
DesignLights Consortium Qualified System Yes
Security   Yes This product is ioXt certified
Product Environmental Profile Yes
Technical Information
Sensor Type Occupancy
Amperage 30 A
Indicator LED Light
Sensing Range 500 sq ft
Voltage 24.0 V
Connection Type Wired



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Questions & Answers

in regards to p/n- UT-305-1...is it possible to mount to a 4" sq. box?? adapter??

Asked by: tony
The sensor is designed to fit in a 4 inch Octagonal J-Box that can be mounted.
Answered by: Tier 1 Tech Support
Date published: 2023-07-17

If this is placed in a bathroom where there's a laundry in an immediately adjacent room, will this be triggered by the sound of the laundry running?

Asked by: BriD
Ultrasonic sensors detect the presence of people by sending out ultrasonic sound waves into a space and measuring the speed at which they return. They look for frequency changes caused by a moving person. Sound in a nearby room will not affect it's operation.
Answered by: Legrand Technical Support
Date published: 2021-05-03
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