Description
Introduction
The theben theRonda S360 KNX AP BK (SKU: 2089552) is a passive infra-red (PIR) presence detector engineered specifically for surface-mounted ceiling installations within KNX building automation networks. Delivering a 360° circular detection coverage area up to 50 m² (Ø 8 m) at a mounting height of 3 m, this presence sensor enables accurate occupancy monitoring and lighting automation for commercial and residential projects. This device is part of our KNX system devices range.

Equipped with 2 light channels and 2 presence channels, the sensor utilizes mixed light measurement to balance natural daylight with artificial illumination. Designed for flexible integration, it connects via a standard KNX bus terminal and accommodates ceiling mounting heights ranging from 2 m to 4 m.
Key Features
- Passive infra-red (PIR) presence detector with a 360° detection angle.
- Circular detection coverage of 50 m² (Ø 8 m) at a 3 m installation height.
- 2 light channels and 2 presence channels for automation logic.
- Mixed light measurement for efficient light control.
- Surface-mounted ceiling installation type.
- Direct bus connection via standard KNX bus terminal.
- Designed for sitting activity detection at heights between 2 m and 4 m.
Benefits
- Provides continuous 360° circular detection covering up to 50 m² for comprehensive area monitoring.
- Features 2 independent light channels and 2 presence channels for multi-zone building control.
- Integrates mixed light measurement technology to maintain energy-efficient ambient lighting.
- Supports surface ceiling mounting across flexible installation heights between 2 m and 4 m.
- Connects directly to standard KNX systems via an integrated KNX bus terminal.
Technical Specifications
Applications
- Ceiling presence monitoring in offices and commercial interiors.
- Automated HVAC and lighting control across KNX building networks.
Installation Notes
- Mount directly onto the ceiling surface at installation heights between 2 m and 4 m (minimum height 1.7 m).
- Connect to the KNX bus line using the integrated KNX bus terminal.
Developer Resources
- Technical Handbook PDF, Data Sheet PDF, Tender Text DOC, and CE Declaration of Conformity available for system planning.
FAQ
What is the detection area of the theben theRonda S360 KNX AP BK?
It provides a 360° circular detection area covering up to 50 m² (Ø 8 m) when installed at a 3 m mounting height. Explore more theben automation devices for professional building automation projects.
How many channels does the device support?
The presence detector features 2 light channels and 2 presence channels for system control. For certificates and current technical files, refer to the official product documentation.
What is the recommended installation height?
The device is designed for ceiling installation at heights between 2 m and 4 m, with a minimum height of 1.7 m.
What is the exact product model?
The order/model code for this page is 2089552. 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 AP BK (2089552) is a reliable surface-mounted PIR presence detector for KNX systems, featuring 360° coverage, 2 light channels, 2 presence channels, and mixed light measurement. Installers and system integrators can review our installer purchasing support options.








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