Development and manufacture of OEM gas sensors and custom gas measurement systems based on photometric measurement technology.
Wi.Tec-Sensorik GmbH
Wesel (Schepersweg 41-61)New on Amplifa
About Wi.Tec-Sensorik
Wi.Tec-Sensorik GmbH, based in Wesel, is a specialized company in the field of photometric gas measurement technology. The company develops and manufactures OEM gas sensors and custom gas measurement systems for environmental and process measurement technology. The product lines INFRA.sens® (NDIR gas analysis in the 2–14 µm range), ULTRA.sens® (miniaturized UV-LED technology, 200–500 nm), SPECTRO.sens (TDLAS laser spectroscopy for CH₄) and KOMBI.sens® (combination of NDIR and NDUV) fully cover the spectral range usable for gas analysis. With a modular sensor design, up to three gases can be measured simultaneously, supplemented by oxygen, pressure and humidity measurement. Measuring cells are made of aluminum with polished gold plating and passivated stainless steel; PEEK is available for special applications. Fields of application include wastewater treatment plants, biogas, natural gas monitoring, exhaust CEMS in shipping, medical technology, elemental analysis, and monitoring of gas-insulated switchgear.
- Site
- Wesel
- Processes
- NDIR gas analysis (INFRA.sens®), NDUV/UV-LED gas analysis (ULTRA.sens®), TDLAS – laser-based CH₄ gas analysis (SPECTRO.sens), Electrochemical oxygen measurement (O₂.sens D), Capacitive humidity measurement (HUMI.sens®), Pressure measurement (P.sens), Natural gas monitoring (NGM/NGA up to 15 bar), Custom development of gas measurement systems (OEM, modular sensor design)
- Materials
- Aluminum with polished gold plating, Stainless steel, passivated, Stainless steel version (optional, pressure sensor), PEEK (polyetheretherketone), FKM/Viton (hose DN4/06), Hygroscopic polymer (humidity sensor), Hygroscopic polymer
- Certificates
- Vibration testing DIN EN 60068-2-64
- Industries
- Environmental and process measurement technology, Wastewater treatment plants / wastewater treatment, Biogas & renewable energies, Natural gas and gas network monitoring, Shipping (exhaust CEMS), Medical technology
- 01
Development of custom gas measurement systems
- 02
Modular manufacturing of sensor components (detectors, emitters, measuring
- 03
Sensor integration and options (O₂, pressure, humidity)
- 04
Software & interfaces (MARS-Tool, RS232, CAN bus)
- 05
Accessories, integration support and service
Measurement Technologies & Materials
Aluminum with polished gold plating
Standard measuring cell material of the photometric measurement modules for high reflectivity and measurement stability.
Stainless steel, passivated
Standard measuring cell material for corrosive applications, optionally also for pressure sensors.
PEEK (polyetheretherketone)
Measuring cell material for special applications with high chemical requirements.
FKM/Viton (hose DN4/06)
Hose material for the gas path with demanding media.
Hygroscopic polymer
Sensor material of the HUMI.sens® capacitive humidity sensor.
Locations
Wesel
DEHeadquarters with development, manufacturing and sales
- Part weight / size
- Modules up to approx. 28 × 20 × 10 cm
- Lot size
- OEM series and prototypes
- Materials
- Aluminum (gold-plated), stainless steel (passivated), PEEK
- NDIR sensor platform INFRA.sens®
- UV-LED sensor platform ULTRA.sens®
- TDLAS module SPECTRO.sens
- KOMBI.sens® multi-gas modules
Products & Modules
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| NDIR gas analysis (INFRA.sens®)Testing | – | 28 cm × 20 cm × 10 cm | – | – | CO₂, CO, N₂O, CₙHₘ, CH₄, C₂H₆, C₃H₈, C₄H₁₀, CF₄, SF₆, H₂O |
| NDUV/UV-LED gas analysis (ULTRA.sens®)Testing | – | – | – | – | O₃, Cl₂, ClO₂, CS₂, H₂S, SO₂, NO₂, NO |
| TDLAS – laser-based CH₄ gas analysis (SPECTRO.sens)Testing | ± 2 ppm | – | – | – | CH₄ |
| Electrochemical oxygen measurement (O₂.sens D)Testing | – | – | – | – | O₂ |
| Capacitive humidity measurement (HUMI.sens®)Testing | +/-1% RH | – | – | – | H₂O |
| Pressure measurement (P.sens)Testing | Resolution 0.1 mbar | – | – | – | – |
| Natural gas monitoring (NGM/NGA up to 15 bar)Testing | – | 28 cm × 20 cm × 10 cm | – | – | CH₄, CₙHₘ, CO₂ |
| Custom development of gas measurement systems (OEM, modular sensor design)Engineering | – | – | – | – | CO₂, CO, N₂O, CH₄, H₂S, SF₆, SO₂, O₃ |
Additional services
Reference customers
Quality
The modules are characterized by low drift, high long-term stability, integrated temperature and pressure compensation, and automatic zero-point adjustment (AZF modules). For maritime applications, the systems are vibration-tested according to DIN EN 60068-2-64.
| Evidence | Wesel |
|---|---|
| Vibration testing DIN EN 60068-2-64 |
History
- 2016
Publication of the technical book 'Gas Measurement Technology in Theory and Practice' by Prof. Dr. Gerhard Wiegleb (Springer-Verlag, over 1300 pages)