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  • Installation Costs Under Control
    Our precise, tailored to the application controllers can contribute to a significant improvement in your entire production process.
    To our controllers

  • Mobile, Secure, Fast And Inexpensive
    Analyses can be performed on site without previous knowledge of chemistry or laboratory equipment with our test kits.
    To our test kits

  • Reduce Costs And Improve Quality
    Improve your water treatment process with our online analysis instruments.
    To our analysis instruments

Water is our Element

Gebrüder Heyl Analysentechnik GmbH & Co.KG has been working in industrial water treatment for over 60 years.
We develop and produce measuring and control equipment for the water analysis with 50 employees. Our Testomat series measures more than 20 parameters, including hardness, carbonate hardness, free chlorine and chlorine dioxide.
Our devices are used, for example, in the production of drinking water, in swimming pools, in the food industry as well as in industrial cooling and heating circuits.
Our Chemical Division produces the appropriate indicators and reagents for the devices. In addition we develop and manufacture individual analysis instruments on behalf of our customers.

The new product catalog 2020 is online!

Our News

Measuring converter Testomat® Modul TH

Our new hardness measuring instrument Testomat® Modul TH combines the measurement technology of the Testomat® family with a technical design that is significantly reduced to the essentials, which reduces costs and is of low maintenance.


To the news

Beta study starts

Our new Testomat 2000® Tannin device is now ready for a beta study with German-speaking plant operators who want to test tannin monitoring in their hot water system.





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International Visits to Trade Fairs

In 2019 we will participate again on important trade fairs of the water treatment industry.

We will be respresented by Heyl Brothers North America L.P. on all american expositions 

At the moment we do not have any trade fair dates.