Many KNX room controllers offer a wide range of functions – which often makes them unnecessarily complex to use.
With eTR Secure, Elsner Elektronik takes a different approach. The new generation of KNX room controllers focuses on simple installation and commissioning, future-ready technology and functions that are consistently aligned with the actual requirements in the room.
The eTR Secure generation begins with eTR 103 AC KNX sec. This room temperature controller for VRF air conditioning systems takes on key tasks in room climate control, for example in office or hotel applications. It demonstrates how a reduced user interface and a powerful application can be effectively combined.
KNX Data Secure is integrated as standard and ensures secure, end-to-end communication. Smart Linking and semantic tagging also support efficient and simplified commissioning.
Find out more about eTR 103 AC KNX sec!










