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Front and side of Ultrasonic Ceiling Occupancy Sensor, 24VDC, 2000 sq ft, USA

Ultrasonic Ceiling Occupancy Sensor, 24VDC, 1000 sq ft

UT-305-2 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.
Footprint 1000 sq ft
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Features

Features

  • 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
Specifications

Specifications

General Info
Color White
Product Series UT-305
Type Sensor
Application Sector Commercial
Product Line Wattstopper
Country Of Origin China
Features Adjustable Time Delay, Indicator Lights, Light Level Sensor, Power Pack Required, Sensitivity Adjustment
Installation Location Ceiling
Warranty Type 5-Year
Standard UL, cUL, PEP
UPC Number 754182915187
Dimensions
Product Depth US 1.6 in
Product Height US 4.5 in
Product Volume US 44.4 cu in
Product Width US 4.5 in
Product Weight US 0.2187 lb
Additional Information
Product Environmental Profile Yes
Technical Information
Current Draw 25 mA
Number of Connections 1
On Function Auto On
Wire Connection Type Terminal Block
Has Battery No
Indicator LED Light
Input Voltage 24 VDC/VAC
Mounting Type 4 in Octagonal J-Box, Ceiling Tile, Surface
Operating Temperature 0°-55°C, 32°-131°F
Operating Temperature Max 131 °F
Operating Temperature Min 32 °F
Sensing Range 32 x 32 ft
Sensor Type Occupancy
Sensor Technology Ultrasonic
Sensor Coverage 1000 sq ft
Sensor Coverage Pattern 360 deg
Sensor Mounting Height 8-10 ft
Ultrasonic Frequency 40 kHz
Resources

Resources

Cutsheet
UT-300 Series Ultrasonic Ceiling Sensors
pdf
Installation Instructions
UT-300 Low Voltage Ultrasonic Occupancy Sensor (Tri-Lingual)
pdf
UT-305 Ultrasonic Low Voltage Occupancy Sensor (TriLingual)
pdf
CAD Drawings
57-003-4 - 8-Wire Occupancy Sensor with Manual-On Feature
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57-003-4 - 8-Wire Occupancy Sensor with Manual-On Feature
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57-003-4 - 8-Wire Occupancy Sensor with Manual-On Feature
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57-010 - Multiple Occupancy Sensors Using One Power Pack
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57-010 - Multiple Occupancy Sensors Using One Power Pack
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57-010 - Multiple Occupancy Sensors Using One Power Pack
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57-010 - Multiple Occupancy Sensors Using One Power Pack
pdf
57-039-8 - CI,DT,UT-355 Sensor Mounting Details
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57-039-8 - CI,DT,UT-355 Sensor Mounting Details
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57-039-8 - CI,DT,UT-355 Sensor Mounting Details
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57-039-8 - CI,DT,UT-355 Sensor Mounting Details
pdf
UT-100-1cp - UT-300-1
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UT-300-1
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UT-300-1
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UT-300-1cp - UT-300-1 Coverage Pattern
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UT-300-1cp - UT-300-1 Coverage Pattern
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UT-300-1cp - UT-300-1 Coverage Pattern
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UT-300-2
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UT-300-2
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UT-300-2
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UT-300-2cp - UT-300-2 Coverage Pattern
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UT-300-2cp - UT-300-2 Coverage Pattern
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UT-300-2cp - UT-300-2 Coverage Pattern
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UT-300-3
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UT-300-3
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UT-300-3
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UT-300-3cp - UT-300-3 Coverage Pattern
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UT-300-3cp - UT-300-3 Coverage Pattern
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UT-300-3cp - UT-300-3 Coverage Pattern
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Specifications
UT-300 Ultrasonic Occupancy Sensor
doc
Product Environmental Profile
Low Voltage Dual Technology Occupancy Sensor
pdf
Case Studies
Controls Contribute to 40% Energy Savings in Kaiser Permanente Warehouse
pdf
Reviews

Reviews

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Questions & Answers

Questions & Answers

Will these updated models work with BZ-150 Power Packs?

Asked by: Anonymous
Yes, this sensor will work with the BZ-150 Power Pack.
Answered by: Justin
Date published: 2024-08-15

Please advise how can we install UT-305-3 as surface mount installation. What accessories do we need for surface mount installation.

Asked by: Mohammed Kazim
Wattstopper does not currently offer a surface mount kit for the UT-305.
Answered by: Justin
Date published: 2024-07-11

The sensitivity control does not seem to be working correctly. Full CCW works but as you turn the control CW, it seems to not work.This unit controls the lights and a exhaust fan.The panel that the unit is on has some vibration from the exhaust fan nearby

Asked by: Leo Schaaf
If the unit is vibrating, I suspect that is the problem. Once you take the sensor out of service mode, the sensor is again active (at varying degrees of sensitivity depending upon how far CW you adjust the trim pot), but due to the vibration, the sensor sees everything moving and will hold the lights ON.
Answered by: Tier 1 Tech Support
Date published: 2024-03-28

on the UT-305-3 what size hole is recommended to be cut into ceiling tiles ?

Asked by: Anonymous
If you are mounting directly to the ceiling, the installation manual suggests a 3.5 to 4 inch round hole or it can be mounted into a standard octagonal J -Box.
Answered by: Tier 1 Tech Support
Date published: 2023-09-05

Is there an replacement kit to go from the W-1000A to a UT-300/305 due to the different shape and mounting? Or any documentation to help the installers with changing out the obsolete W-1000 to the recommended replacement of a UT-300?

Asked by: Frank
Hi Frank, Sorry but at this time we do not have documentation for the exchange from W series to UT-300 series. Please follow the instructions included with the new sensor for mounting instructions or reach out to tech support for more help. Phone: 1-800-879-8585, Option 3 Mon - Fri: 7am - 7pm CST (excluding holidays)
Answered by: Tier 1 Tech Support
Date published: 2023-08-09

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

What is the difference between this one and the W-1000A?

Asked by: Smiley74
The current draw is the biggest difference between the 2 sensors. The UT-355 has a 40ma current draw and you can have up to 5 sensors on one BZ power pack. The W1000A has a 16ma current draw and you can have up to 9 sensors on one BZ power pack.
Answered by: Tier 1 Tech Support
Date published: 2023-04-14

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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