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KNX testing services

Certification tests in a recognized testing laboratory.

For over 15 years we have been performing KNX software tests in our testing laboratory completely free of any manufacturer bias, in accordance with the requirements of the latest KNX handbook. We are accredited by the KNX Association to perform the following certification tests in accordance with DIN EN ISO/IEC 17025: Interworking and Functionality, Link Layer (Data Part) Network Layer, Transport Layer, Application (Interface) Layer, EMI.

In addition we offer tests to accompany your development processes (function, system, release, module or pre-series tests). You will find further testing services on this page.


Our accredited testing centre offers testing services for the certification of KNX products. Annual accreditation by the KNX Association with the introduction of a QM system in accordance with DIN EN ISO/IEC 17025.


KNX stands for proven and globally established intelligent networking of modern house and building systems technology in accordance with EN 50090 and ISO/IEC 14543. KNX controls heating, lighting, window blinds, ventilation and safety and security technology according to requirements and covering all the technical sub-sections of the building.

Our services

Plus: Customized and express testing.

Interworking Tests

Have your KNX hard and/or software tested at DIAL.

Testing procedure in detail

Pre-series testing

When development is completed, you can start with pre-series testing.

Testing procedure in detail

Stack testing

Stack testing is required when a certified bus coupling unit/bus coupler was not incorporated during the development of the device.

Testing procedure in detail

Test of KNX special software

We support you with our testing know-how and perform tests to your requirements.

Prüfungsablauf im Detail

Hardware testing

Conformity testing according to the KNX handbook, chapter 9/2.

Testing procedure in detail

Individual testing services

Benefit from our experience in testing in other fields.

Further services offered


Learn how to work with official testing software.

Become an expert at working with the KNX Association software tool. With this software you can test the KNX conformity of KNX devices and systems. Learn about the basics of the required test specifications, practical solutions for test setup and transfer functions for test sequences. Professional handling of the software enables you to test products during the development process. You can, as necessary, also bring your own device to the seminar.