Fresenius Umwelttechnik offers a wide range of stationary and mobile analyzers, as well as spare parts & accessories for various industrial applications. These include devices for oxygen measurement, toxic gas monitoring, formaldehyde measurement and biogas analysis. These devices are specially developed for use in industries such as chemicals, environmental technology, pharmaceuticals and recycling.

Our customer service can be reached at +49 2366 93961-10 or by e-mail at info@fresenius-ut.com. We offer support with technical questions, product information and individual solutions. You are welcome to make an appointment via our calendar or use our contact page and talk to our trained experts!

Yes, we offer customized solutions that meet your specific industrial requirements. Our expertise includes the development of solutions that optimize processes, reduce operating costs and increase product quality, which increases your competitiveness and profitability.

Our measurement technology helps you to increase efficiency, ensure compliance and employee safety and optimize your processes. For you, this means that you can increase your profitability and meet legal requirements at the same time.

Just give us a call on +49 2366 93961-10, make an appointment or use our contact page to find out more about what we can do for you!

Prices for our analyzers vary depending on specific requirements and models. Contact us for a customized offer that meets your individual needs.

Simply give us a call on +49 2366 93961-10, make an appointment or use our contact page .

Fresenius Umwelttechnik is certified according to DIN EN ISO 9001:2015, which underlines the high quality standards of our products and services. This certification ensures that our solutions meet the stringent requirements of the industry.

In NDIR (Non-Dispersive Infrared) measurement, a infrared beam passes through the gas cell. Molecules such as CO₂, CO, CH₄, N₂O or SO₂ absorb at characteristic wavelengths (Beer-Lambert law). The device calculates the gas concentration from the measured attenuation — typically with ppm to vol-% accuracy.

Drift means a sensor's zero point slowly wanders over time, distorting the measured values. Instead of compensating for drift with frequent recalibration, Fresenius eliminates the measurement error directly in the optical path of the measurement cell. The result: patented long-term stability, annual calibration is sufficient, no test gas required.

We cover virtually every gas of industrial interest: CO₂, CO, CH₄, N₂O, SF₆ and 100+ others via NDIR; NO, NO₂, SO₂, H₂S, O₃, Cl₂ via NDUV; O₂ paramagnetic or electrochemical; H₂S, HCl, NH₃ electrochemical; and CH₄ via TDLAS with ppb accuracy.

Multiple gases can absorb in similar wavelength regions — cross-sensitivity skews the measurement. Our devices use targeted wavelength analysis and mathematical correction methods to precisely separate overlapping signals. Measured values remain accurate even in complex gas mixtures.

Thanks to the patented ZeroLock zero-point correction, annual calibration is typically sufficient. No test gas is needed — this saves ongoing costs and significantly reduces maintenance effort.

The Cloud Connect Kit connects your Fresenius gas analyzers to the Fresenius Cloud via mobile network — independent of your plant IT. You get real-time measurement data, automatic fault diagnostics, remote diagnostics and push notifications for incidents. Existing devices can be easily retrofitted.

Yes. We provide measurement solutions for continuous monitoring of the lower explosion limit (LEL) for methane, CO, H₂S and other combustible or toxic gases — running reliably even under vibration, temperature variations and high humidity. For ATEX zones we offer specialized devices such as the TINA InSitu analyzer.

Premium components and German manufacturing ensure a hardware lifespan of over 30 years with 10+ years of spare parts guarantee. With low-maintenance design (annual calibration, no test gas, automatic zero-point correction), the investment remains economical for decades.