The new wireless system for automatic shading control is now available. With integrated sensors, local control without cloud connection and easy setup.

Compact radio remote with clean design for residential & commercial use.

CO2 check at a glance

The Air Vision CO2 indicator shows when it’s time to let in fresh air.

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We create interfaces between people and technology.

Expertise in KNX and Building Automation

Welcome to Elsner Elektronik – your partner for intelligent building automation

For more than 30 years, we have been developing sensors, controllers and interfaces for the KNX system and beyond. Our portfolio includes weather stations, room controllers, glass touch panels and wireless solutions. All our products stand for quality, reliability and well thought-out functionality – ensuring smooth planning, integration and operation.

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Technical article

eTR Secure: KNX room controllers that simply work

eTR Secure is the new generation of KNX room controllers from Elsner Elektronik – featuring KNX Data Secure and Smart Linking for more efficient planning, faster commissioning and greater security in your project. Find out here what makes this new generation special and why it was developed:

More about eTR Secure

eTR 103 AC KNX sec Room Temperature Controller for Air Conditioning mounted on a wall in a modern office environment

Why Elsner?

Your advantages in our Online Shop

Payment

Pay comfortably by Paypal, credit card or prepayment. Resellers have the possibility to order on account.

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Awarded quality

The design and quality of our products not only convince the juries of internationally recognized design awards, but are also ISO-certified.

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Competent support

Our experienced service team will advise you before and after the purchase. We are happy to support you with your concerns.

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Customer Support

Service is our top priority!

Do you have a question about a product or are you facing a technical problem? Feel free to contact our customer support!
We will help you competently.

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Head of Technical Support, Frederik Riedel

REGISTRATION AS A RESELLER

You would like to register as a reseller?

You would like to sell our products in your shop? Then we look forward to your registration as a reseller! Please fill out the online form.

If you have any questions, please do not hesitate to contact us by e-mail.

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News & Novelties

What's new?

eTR 103 AC KNX sec mounted on the wall in a modern office setting

04/16/2026 | eTR 103 AC KNX sec: Launch of the new eTR Secure generation

With eTR Secure, Elsner Elektronik is launching a new generation of KNX room controllers – future-proof, practical and easy to commission. The first in the range is eTR 103 AC KNX sec.

More about eTR Secure & eTR 103 AC

Incorrectly installed weather stations with typical installation errors encountered in practice

05/21/2026 | Rainswitch 1000 R GI: Easy rain detection via digital input

Why is the weather station suddenly giving incorrect wind readings? Frederik Riedel, Head of Technical Support, uses real-life support cases to demonstrate how installation errors can distort weather data and disrupt building automation.

More about "Project Insights"

04/30/2026 | PS8A: Evaluation unit for weather-based building automation

Collect weather data and convert it directly into control commands: the PS8A evaluation unit reliably controls shading, ventilation, lighting and irrigation – without the need for any additional software.

More about PS8A

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Do you like to be up-to-date? Then sign up now for the Elsner newsletter! It is published about twice a month and informs you about products, events, webinars and much more.

Upcoming events

KNX Summit 2026 – A Holistic Approach to Building Security

11–12 June 2026
Hannover, Germany

More about the summit

Guangzhou Electrical Building Technology

09–12 June 2026
Guangzhou, China

More about the conference

Information on ordering worldwide

Order from the online store directly to Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, Netherlands, Poland, Portugal, Republic of Moldova, Romania, Slovak Republic, Slovenia, Spain and Switzerland. Your country is not listed? Then please request delivery by e-mail!

Information on ordering worldwide

As a reseller, order from the online store directly to Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, Netherlands, Poland, Portugal, Republic of Moldova, Romania, Slovak Republic, Slovenia, Spain and Switzerland. Your country is not listed? Then please request delivery by e-mail!

As an end customer, order directly from the online shop to Austria, Belgium, France, Germany, Italy, Liechtenstein, Luxembourg, Monaco, the Netherlands, Poland, the Republic of Moldova and Switzerland.