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General Information on INFRA.sens®

The INFRA.sens® was specially developed for high-quality NDIR gas analysis. In the design phase, special emphasis was placed on high stability and a low detection limit. With the use of high-performance light emitting diodes (IR-LED) and thermal micro radiators, which were adapted to the needs of gas measurement technology, these goals were achieved in full. In the spectral range from 2 μm to 12 μm, carbon dioxide, carbon monoxide, hydrocarbons and nitrous oxide can be reliably detected up to the ppm range with this new sensor platform.

Overview of INFRA.sens® OEM Modules

INFRA.sens® H2O-AK250GC TBH V5 piped


  • Low detection limit CO without CO2 interference
  • Temperature controlled at 50°C
  • Low drift
  • Pressure compensated
  • Different interfaces (RS232, CANbus,Analog
  • MARS-Tool (Datalogger and Controlsoftware)
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General Information on ULTRA.sens®

The ULTRA.sens® is the world’s first OEM gas measurement module based on miniaturized UV LEDs. The stability and lifetime of these UV-LEDs enables high-precision gas analyses down to the ppb range. By using two UV-LEDs 2 gases can be detected simultaneously. With this approach, 2 measuring ranges from ppm to Vol.-% can also be realized.

In the spectral range from 200 nm to 500 nm, nitrogen oxides (NO+NO2), aromatic hydrocarbons, hydrogen sulphide, ozone, sulphur dioxide and chlorine can be reliably detected with this novel sensor platform.

Overview of ULTRA.sens® OEM Modules

ULTRA.sens® processline

ULTRA.sens® processline
ULTRA.sens® processline AK25 & ULTRA.sens® processline AK200 & ULTRA.sens® processline NOx / SO2-AK50 TBH piped

NDUV sensor technology now ready for corrosive gases

In many areas of process engineering, reactive gases are used as starting products in chemical processes. These gases often are corrosive, so that only certain materials can be used. In process measurement technology, these gases are usually detected with special photometers that are located locally outside the process. The process gas therefore comes in contact with all materials on its way from the process to the sample cell. Both the design of the gas paths and that of the sample cell must therefore be adapted to these requirements.


  • Process Gas Analysis
  • Petrochemical
  • Electrolysis
  • Sterilization Process
  • Process Engineering

Features & Benefits

  • Gas-tight connection technology
  • Different materials available
  • Long term stability
  • Fast reponse time
  • Customized version available
  • Tube Diameter 6mm
  • Modules ready for piping


General information about the KOMBI.sens®

KOMBI.sens® is a combination of ULTRA.sens® and INFRA.sens® with common basic electronics. With this unit, up to 3 gas components can be measured simultaneously. The base electronics can supply IR and UV radiation sources simultaneously. This system is an ideal platform for the detection of gas with multiple components at different concentration ranges (Vol.-% and ppm)


  • Elementary analysis
  • Industrial Gas Analysis
  • Exhaust gas monitoring (CEM)
  • Laboratory section
  • Biogas research

Features & Benefits

  • Combination of IR and UV technology
  • Up to 3 gases + O2
  • Space saving design
  • Cross calculation among each other possible

The KOMBI.sens® OEM Module


Overview Options

AZF eVP Standard scaled 1600

AZF-Module (Auto Zero Function)

  • Wi.Tec extension module for ULTRA.sens® INFRA.sens® & KOMBI.sens® series
  • automatic zero-point adjustment for long-term stable measurements
  • P.sens included (pressure compensation)
  • especially for emission monitoring (CEM)
  • Typ VV - switching on zero gas, e.g N2
  • Typ VP - suction of ambient air
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HXXO20220807162519 2560


  • For thermal insulation
  • Temperature controlled up to 55°C
  • Optionally ULTRA.sens® or INFRA.sens®
  • With dust filter
  • Temperature range 5°C - 45°C
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Overview Accessories

Other Products

Overview Other Products



Gas analysis with the method of selective radiation absorption in the UV and IR range (NDUV / NDIR) is an established method for concentration determination in complex gas mixtures. The …
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