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Dual Tech Occupancy Sensor 100-347VAC, Center Mount 360°

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Wattstopper’s low profile DT-355 dual technology occupancy sensor combines the benefits of passive infrared (PIR) and ultrasonic technologies. The sensor mounts on the ceiling with a flat, unobtrusive appearance and provides 360 degrees of coverage.

Color White
WHERE TO BUY

Features

  • Architecturally appealing low profile appearance
  • Ultrasonic diffusers give more comprehensive coverage
  • Operates at 120, 230 (single phase), 277 or 347 VAC, 50/60 Hz
  • Terminal wiring for quick and easy installation
  • Walk-through mode increases savings potential

Specifications

General Info
Product Line Wattstopper
UPC Number 754182913848
Country Of Origin China
Additional Information
Product Environmental Profile Yes

Reviews

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Questions & Answers

What is the maximum distance the occupancy sensor can be from the ground for it to work properly

Asked by: Stephen M Ball
The DT-355 is designed for a ceiling heights of about 8-12 feet from the floor.
Answered by: Legrand Technical Support
Date published: 2022-04-25

Does this sensor cover minor motion? If so, what are the distances for that?

Asked by: JBJB
The DT-355 is a Dual-Technology sensor that has both PIR and Ultrasonic technology built in . The sensor is able to detect major and minor motion up to 1000 sqft when mounted below 10'.
Answered by: Tier 1 Tech Support
Date published: 2022-02-01

We have these thru out our warehouse, but would like the one by the entry door to stay on, is that possible?

Asked by: Anonymous
To override all sensor functions on the DT-355, set the Ultrasonic Sensitivity trimpot to the fully counterclockwise (Service) position. This bypasses the occupancy control functions of the sensor.
Answered by: Tier 1 Tech Support
Date published: 2022-01-12

Hello, is the DT-355 sensor rated for exhaust fans?

Asked by: KB311
No, the DT-355 has no rating for motor loads. I suggest looking at our BZ power packs and a 24v low voltage sensor. BZ power packs are rated for motor loads.
Answered by: Tier 1 Tech Support
Date published: 2021-11-08

Comparing with the other product Ultrasonic Ceiling Occupancy Sensor, 24VDC (W-500A), which sensors would be more suitable for a 150sq.m classroom? Comparing to its technologies, lifetime and price. Thank you.

Asked by: Nelson
Dual technology sensors are most commonly used in this application. They work using a combination of PIR and Ultrasonic technology. As individuals move throughout a given space, Ultrasonic wave analysis and the Doppler effect help detect indirect motion while passive infrared sensors monitor presence directly.
Answered by: Tier 1 Tech Support
Date published: 2021-07-26

we are looking for an occupancy sensor that will fit in a single gang electrical box. do you offer one?

Asked by: webb man
Good Afternoon, Thank you for contacting Wattstopper. We offer several sensor switch options that will fit in a single gang electrical box. Please go to our website www.legrand.us and you can search Wall Switch Sensors. We do not have an option that is a sensor only. The correct device for your situation will depend on your application and if you want a line voltage or low voltage sensor. Please let us know if we can offer any further assistance. Best Regards, Wattstopper Technical Support 800-879-8585
Answered by: Tier 1 Tech Support
Date published: 2021-07-20

Can you use two ceiling sensor in a large room ?

Asked by: SteveO
Yes, multiple ceiling sensors can be used to cover a large area.
Answered by: Legrand Technical Support
Date published: 2021-05-07
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