text.skipToContent text.skipToNavigation

PIR Ceiling Occupancy Sensor 100-347VAC, Ceiling Mount 360°

  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 28ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

Wattstopper’s CI-355 passive infrared (PIR) occupancy sensor automatically turns lighting on and off based on occupancy. The sensor mounts on the ceiling with a flat, low-profile appearance and provides 360 degrees of coverage.

Footprint 1200 sq ft
  • Send
  • Save as PDF
  • Add to favorites Remove from favorites


  • Detection Signature Processing eliminates false triggers and provides immunity to RFI and EMI
  • Walk-through mode turns lights off 3 minutes after the area is initially occupied – ideal for brief visits such as mail delivery
  • Built-in light level sensor featuring simple, one-step set-up
  • Zero-crossing for long relay life
  • LED indicates occupancy detection
  • DIP switch simplifies sensor adjustments
  • Clip mounting system makes ceiling tile installation simple


General Info
Product Line Wattstopper
UPC Number 754182914333
Country Of Origin China
Features Indicator Lights, IR (Infrared), Motion Sensor
Application Sector Commercial
Warranty Type 5-Year
Product Width US 4.0 in
Product Weight US 0.54 lb
Product Volume US 67.68 cu in
Product Depth US 4.75 in
Product Height US 3.0 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
Indicator LED Light
Wattage 800 W
Voltage 100 to 347 V
Connection Type Wired


  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 4ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

Questions & Answers

Nesecito ayuda para que el sensor no encienda las luces con la presencia de luz ambiental, ya hice lo que dice el manual pero aún encienden durante el día

Asked by: Caló
Calo, El sensor se debe de programar durante la hora del dia que aiga suficiente luz. Undes el boton de daylight por 2 segundos y nos retiramos del sensor por 10 segundos, estaran parpariando los LEDs. Cuando los LEDs dejen de parpariar regrese el cubierto al dispositivo.
Answered by: Justin
Date published: 2024-01-25

Can you use a light dimmer in conjunction with the CI-355

Asked by: Randy
The sensor is designed to use a standard on/off switch for over-ride. Please contact Wattstopper Technical Support @ 800-879-8585 for further assistance.
Answered by: Tier 1 Tech Support
Date published: 2023-04-20

i have replaced fluorescent lamps in 3 fixtures within line LED lamps controlled by a CI355. Now the sensor times out then turns right back on. is this sensor not compatible?

Asked by: jack
The CI-355 is compatible with LED fixtures. The sensor may need to be adjusted. Please contact Wattstopper Technical Support @ 800-879-8585 for troubleshooting assistance.
Answered by: Tier 1 Tech Support
Date published: 2022-02-01

How do I verify if the CI-355 sensor meets certain IEEE, NEMA and UL standards to meet a specification if you cannot find these respective certifications on a cut sheet?

Asked by: JAMIE T
Protocols and standard that is required for Wattstopper to meets would be on the cut sheet or the installation guide. If it is not on one of them then the customer would need to contact our product team for more information..
Answered by: Tier 1 Tech Support
Date published: 2021-08-16

For the CI 355 is there a minimum or maximum wattage?

Asked by: Rob Sloan
Hello, Thank you for your inquiry. Here is the minimum and maximum wattage for the CI-355. Load Ratings @120VAC.........................................0-800W Ballast/Tungsten/LED @230VAC (Single Phase)...............................0-1200W Ballast/LED @277VAC ......................................................0-1200W Ballast/LED @347VAC.......................................................0-1500W Ballast/LED
Answered by: Legrand Technical Support
Date published: 2021-02-10
  • y_2024, m_5, d_21, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_5
  • loc_en_US, sid_CI-355, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_legrand
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 33ms