Company history

Christmas holidays

From December 25th 2023 to January 01st 2024 our company will be closed!
We wish all business partners a reflective pre-christmas season and relaxing holidays.      

Products in focus

The Limes hardness control devices enable cost-effective monitoring of reverse osmosis systems with reliable chemical analysis. Product information...


The SYCON 2702 is a titration device for optimal use in a softening system or to protect reverse osmosis. The limit value to be monitored and the...


The SYCON P is a titration device for measuring the +p value. In addition to the usual relays and input contacts, the online analysis device has a 20...


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For over 40 years, we have been developing and producing reliable measurement and sensor technology for a wide range of demanding applications here in Germany.

In 1974, the Rudolph engineering office was founded in Sarstedt, which developed and manufactured devices for radio stations ("Hinz trillers").

This led to the formation of Rudolph Logic Systems GmbH in 1989, which specialised very successfully in products for the escalator sector.

In 2008, RLS innovations GmbH took over the production and distribution of the entire product range of Rudolph Logic Systems GmbH. It consistently developed the products further and expanded the spectrum to include, among other things, innovative lighting concepts for new applications and additional markets.

With Wacon GmbH in 2009, sophisticated products of measurement and sensor technology for water treatment were added.

The merger of the two companies in 2013 led to the new and current company name RLS Wacon GmbH.

Our name may have changed over time, but our passion for our products and our courage to tackle new things have remained unchanged over the decades.

It has always been our ambition to maintain a dialogue with you as our customer and partner in order to find a robust and safe solution for your application. We also consistently rely on a high level of vertical integration and high-quality products.

Because this is the only way to reliably produce safety.

Escalator division

At the end of the 80s in the last century, Rudolph Logic Systems GmbH specialised very successfully in products for the escalator sector.

With the "C-Version" light curtain, they developed a simple and robust solution for monitoring escalators, which is still established on the market today as a recognised technology.

With the takeover by RLS innovations GmbH, a completely independent production and sales department for the entire product range was established.

Since then, we have been consistently developing the products and expanding the spectrum - among other things with innovative lighting concepts for new applications and additional markets.

Water division

In the field of water treatment, our experience goes back several decades: the company "Wacon Water Control Systems Bernd Wolthausen GmbH", founded by Mr. Bernd Wolthausen, is the origin.

The water analysis device Sycon 3000 H developed by him is still in use in several companies today.

In 2009, RLS innovations GmbH took over Wacon GmbH from Mr Wolthausen and ran it as a subsidiary until 2013.

During this time, further online analysis devices such as the Sycon 2500, 2501 and 2800 were successfully launched on the market. We have also been offering OEM versions of these devices ever since.

By merging both companies, today's RLS Wacon GmbH was created in 2013.

In the meantime, further water analysis devices such as the Sycon 2502 have been developed and marketed, and numerous ideas are still awaiting realisation.

You can remain curious...

Our product range

  • With the online analyzers of the Sycon series from RLS Wacon, individual parameters can be continuously monitored automatically. Our devices
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  • RLS Wacon offers you a wide range of test kits for the determination of water parameters. In addition to many
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  • RLS Wacon offers the reagent suitable for your analyzer. In addition to the reagents for our Sycon analyzers, the delivery
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