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  • Reduce Costs And Improve Quality
    Improve your water treatment process with our online analysis instruments.
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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.
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  • Mobile, Secure, Fast And Inexpensive
    Analyses can be performed on site without previous knowledge of chemistry or laboratory equipment with our test kits.
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Water is our Element

Gebrüder Heyl Analysentechnik GmbH & Co.KG has been working in industrial water treatment for over 50 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.

Our Innovations

Testomat® 808 SiO2

Our new Testomat® 808 SiO2 is a limit gauge for the monitoring of silica.

It has a measuring range of 0.3 to 1.2 ppm and can be used as a monitor for the water treatment in sterilisation departments in hospitals.


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DUROVAL® KB 8,2

Our new test kit DUOVAL® KB 8,2 is developed for determining the base capacitiy up to pH 8,2 in water of heating circuits.




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International Visits to Trade Fairs

In 2017 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.