Description
Introduction
The theben theRonda S360 KNX FLAT DE WH (Item no. 2089560) is a high-precision passive infrared (PIR) presence detector engineered for KNX ceiling installation. Featuring a 360° circular detection area capable of covering up to 50 m² (Ø 8 m) at a mounting height of 3 meters, this detector ensures accurate motion and presence monitoring across commercial and residential spaces. This device is part of our KNX system devices range.

Designed for seamless integration into KNX system environments, this unit includes 2 independent light channels and 2 presence control channels. It utilizes mixed light measurement to balance daylight and artificial illumination, supporting efficient automation workflows while connecting via a standard KNX bus terminal.
Key Features
- Passive infrared (PIR) sensor technology with a 360° detection angle.
- Supports 2 light output channels and 2 presence output channels.
- Suitable for installation heights ranging from 2 m to 4 m (minimum height 1.7 m).
- Mixed light measurement functionality.
- Direct integration via standard KNX bus terminal connection.
- Detection range scaled for seated activities across defined mounting heights.
Benefits
- Delivers 360° circular detection up to 50 m² (Ø 8 m) at a 3 m mounting height.
- Provides 2 light channels and 2 presence channels for multi-zone automation flexibility.
- Incorporates mixed light measurement for intelligent lighting control.
- Facilitates ceiling flush mounting with a standard 68 mm cut-out diameter.
- Includes fully documented Global Warming Potential (GWP) environmental data.
Technical Specifications
Applications
- Ceiling-integrated presence and movement monitoring in offices, meeting spaces, and conference rooms.
- KNX building control systems requiring independent light and HVAC/presence channels.
Installation Notes
- Requires a ceiling cut-out diameter of 68 mm for flush installation.
- Designed for mounting heights between 2.0 m and 4.0 m, optimized for seated presence sensing.
- Connect directly to the KNX bus topology using the standard KNX bus terminal.
Developer Resources
- Handbook (PDF), Data Sheet (PDF), Tender Text (DOC), and CE Declaration of Conformity (PDF) available.
FAQ
What is the detection area of the theRonda S360 KNX FLAT DE WH?
At a mounting height of 3 meters, it offers a circular 360° detection area covering 50 m² (Ø 8 m). Explore more theben building automation products for professional building automation projects.
How many KNX channels are available on this device?
It provides 2 light control channels and 2 presence control channels. For certificates and current technical files, refer to the manufacturer technical documentation.
What ceiling cut-out size is needed for installation?
The device requires a 68 mm ceiling cut-out diameter for flush mounting.
What is the exact product model?
The order/model code for this page is 2089560. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by theben.
Where can I find the official technical documentation?
Use the manufacturer product page and datasheets for this exact SKU. Always verify the latest revision before specifying the product.
Conclusion
The theben theRonda S360 KNX FLAT DE WH (2089560) is a reliable presence detector combining circular 360° coverage with dual light and presence channels for precise KNX ceiling control. Installers and system integrators can review our professional project support options.









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