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Atlona® Network Enabled Occupancy Sensor
Atlona® Network Enabled Occupancy Sensor 0
Atlona® Network Enabled Occupancy Sensor 1
Atlona® Network Enabled Occupancy Sensor 2
Atlona® Network Enabled Occupancy Sensor 3

Atlona® Network Enabled Occupancy Sensor

Model #: AT-OCS-900N
At a Glance
The Atlona AT-OCS-900N is a network-enabled multi-function sensor designed for use in a wide variety of AV automation applications. This ceiling mounted sensor uses passive infrared (PIR) technology to detect occupancy in the coverage area.
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Get to know this product.

The OCS-900N utilizes an IP network to communicate with select Atlona products or our Velocity system to automatically control AV components based on whether the space is occupied. It comes with two lenses that cover approximately 900 ft2 (83.6 m2) or 2,000 ft2 (185.8 m2) depending on ceiling height. A blinder insert is included that limits the sensor’s field of view, preventing detection in unwanted areas such as doorways or windows with heavy cross traffic. Installation is simplified by Power over Ethernet (PoE), that provides both communications and power over a single cable as well as spring-loaded clamps that secure the sensor to a ceiling tile.

In addition to occupancy, the OCS-900N also captures temperature and ambient light level information. Its open standard design allows sensor information to be communicated to third-party ventilation, lighting, and other systems over TCP/IP using common protocols such as UDP, TCP, WebSocket, and MQTT.


  • Commercial – Automate AV system operation in conference rooms and huddle spaces based on occupancy.
  • Education – Automate AV system operation in classrooms and lecture spaces based on occupancy.
  • Hospitality / Retail – Create interactive with digital signage and video walls in lobbies or stores based on motion near the display.


  • Multi-function sensor that detects occupancy, temperature, and ambient light level
  • IP-enabled for communicating state information over Ethernet
  • Communicates over the network directly to the AT-WAVE-101 for automatic display control
  • Works with Velocity AV control systems for more complex automation applications
  • Supports network communications with third-party devices using common protocols such as UDP, TCP, WebSocket, and MQTT
  • Power over Ethernet (PoE) for remote power and network connection with a single cable
  • Passive infrared (PIR) detection technology
  • Customizable detection area with standard lens covering 900 ft2 (83.6 m2) and included accessory lens covering 2,000 ft2 (185.8 m2)
  • 360 degrees field of view standard, or limit to 240 degrees with included blinder insert
  • Configurable LED indicators may be customized for both color and activity
  • Self-contained spring-loaded clamps for easily securing the sensor to a ceiling tile
  • Three-year limited product warranty

Misc. Specs

Depth (in.)2.9
Width (in.)2.9
Height (in.)2.13
Color Finish NameWhite
Product Weight (lbs.).13
Manufacturer Warranty3 year
WarningProposition 65 Warning for California Residents