NOx sensors or analyzers are essential components in the combustion process of gas-fired combustion turbines, which are commonly used in power generation and industrial applications. They measure the concentration of NOx in the exhaust gases, which allows for continuous monitoring and control of NOx emissions, and compliance with environmental regulations.
\n\n\n\nThe NOx sensors used in combustion turbines can be categorized into two types: in-situ and extractive. In-situ NOx sensors measure NOx concentrations directly in the engine combustor, while extractive NOx sensors collect a sample of the exhaust gases and measure NOx concentrations outside the engine.
\n\n\n\nSome common OE part numbers for NOx sensors used in combustion turbines include ABB 10A4000, Siemens 7MB2121, and GE B030805001D. The specific application and OE part number for the NOx sensor will depend on the manufacturer and model of the combustion turbine.
\n\n\n\nOverall, NOx sensors are critical for ensuring efficient combustion and reducing NOx emissions in combustion turbines, supporting sustainability and compliance with environmental regulations.
\n\n\nRelated NOx sensor products
\n\n\nUse the products below as a starting point for cross-reference. If your engine, equipment, or turbine application is not listed, send the OE number, sensor label photo, connector shape, and quantity requirement for RFQ matching.
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PACCAR MX-13 Forward NOx Sensor 2236409 12V
OE: 2236409Brand: DAF & PACCAR · PaccarSample price $249.99In stock — 50 pcs
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5WK96755A Nox Sensor A2C95912900-01 Kubota Fendt SNS155A JCB Bobcat
OE: 5WK96755A · SNS155A · A2C95912900-01Brand: JCB · CumminsSample price $249.99In stock — 50 pcs
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441-5127-03 NOx Sensor 441-5127 CAT 5WK9 7354 HYN2937 4415127
OE: HYN2937 · 4415127 · 5WK9Brand: Caterpillar · HyundaiSample price $249.99In stock — 50 pcs
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12648630 GM Duramax Diesel 6.6L NOX Sensor 5WK9 6631D
OE: 12648630 · 6631D · 5WK9Brand: GMSample price $249.99In stock — 50 pcs
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059907807N Audi 12V NOX Sensor 5WK9 7441 VW
OE: 059907807N · 5WK9Brand: Audi & VWSample price $199.99In stock — 50 pcs
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Nitrogen Oxide Nox sensor 5WK9 6614J 8-Wire 24V 590mm
OE: 6614J · 5WK9Brand: CumminsSample price $249.99In stock — 50 pcs
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NOx sensor 5801777219 5WK9 6720A for IVECO Euro 6 24V 590mm
OE: 5801777219 · 6720A · 5WK9Brand: IVECOSample price $249.99In stock — 50 pcs
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Nox Sensor 5WK9 6733B for Iveco 5801754016 5801443021 5801273980
OE: 6733B · 5801754016 · 5801443021 · 5WK9Brand: Cummins · IVECOSample price $249.99In stock — 50 pcs
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A0009055010 MB Nox Sensor A3C01718000-616 Mercedes-Benz
OE: A0009055010Brand: Mercedes-BenzSample price $249.99In stock — 50 pcs
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A2C95993800-01 NOx Sensor 5WK9 6753B Cummins 4326869
OE: 6753B · 4326869 · A2C95993800-01 · 5WK9Brand: CumminsSample price $249.99In stock — 50 pcs
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2236409PEX Paccar Nox Sensor PACCAR 5WK9 6759C Kenworth Peterbilt Cummins
OE: 2236409PEX · 6759C · 5WK9Brand: DAF & PACCAR · PaccarSample price $249.99In stock — 50 pcs
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NOx Sensor 441-5128-04 For Cater Pillar 4415128 Lambda Catalyst 441-5128
OE: 4415128Brand: CaterpillarSample price $249.99In stock — 50 pcs
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\n\nGas Turbine Types and NOx Monitoring
\n\n\n\nGas turbines are widely used in power generation, oil and gas processing, and industrial applications. NOx emissions from gas turbines are a significant environmental concern, and accurate monitoring is essential for regulatory compliance and operational optimization.
\n\n\n\nHeavy-Duty Power Generation
\n\n\n\nLarge gas turbines used in power plants (50-500+ MW) are subject to strict NOx emission limits. These turbines often operate continuously, requiring sensors with exceptional long-term stability and minimal drift. Our sensors are designed for the demanding conditions of power generation exhaust streams.
\nAeroderivative Turbines
\n\n\n\nDerived from aviation engines, aeroderivative turbines offer high efficiency and fast start-up times. They are commonly used in peaking power plants, offshore platforms, and industrial cogeneration. NOx sensors for these applications must handle rapid load changes.
\nIndustrial Cogeneration
\n\n\n\nCombined heat and power (CHP) systems using gas turbines need precise NOx monitoring to optimize the balance between electrical output, heat recovery, and emission compliance. Our sensors support continuous emission monitoring (CEM) systems in these facilities.
\nOil & Gas Processing
\n\n\n\nGas turbines drive compressors and generators in oil and gas facilities. These applications often involve fuel gas with varying compositions, which affects NOx formation. Our sensors provide accurate readings regardless of fuel gas variations.
\nIndustrial Use Cases
\n\n\n\nContinuous Emission Monitoring (CEM)
Power plants and industrial facilities use continuous monitoring systems to track NOx emissions in real-time. Our sensors integrate with standard CEM systems.
SCR System Control
Selective Catalytic Reduction systems use NOx sensor feedback to optimize urea/ammonia injection, reducing emissions while minimizing reagent consumption.
Performance Optimization
Real-time NOx data helps operators tune combustion parameters for optimal efficiency while staying within emission limits.
Environmental Compliance
Regulatory bodies worldwide require documented proof of emission compliance. Our sensors provide the accurate data needed for reporting.
Whether you operate a single industrial turbine or manage multiple power generation facilities, our NOx sensors deliver the accuracy, reliability, and longevity you need to maintain compliance and optimize performance.
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