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NOx Sensor 5WK9 6790B

The NOx sensor 5WK9 6790B is part of a NOx reduction aftertreatment system in diesel vehicles using a urea-based SCR system. In 5WK9 6790B NOX sensors, NOX is separated into nitrogen and oxygen by catalytically active electrodes. The NOx sensor 5WK9 6790B can simultaneously measure and exhaust NOx, which can quickly and accurately detect the NOx concentration level in the gas.


Product Features:

NOx Sensor OEM No.5WK9 6790B
NOx sensors are placed in the exhaust system to observe nitrogen oxide (NOx) levels in the exhaust. On most systems, there are usually two NOx sensors. There is one after the exhaust manifold and a second after the Selective Catalytic Reduction (SCR) system to monitor SCR efficiency.
Independently develop signal processing and HW/SW control for compatibility with the best detection technology
Independently develop dedicated chips that are highly integrated reliable,and low cost

nox sensor 5wk9 6790b 1

Product Parameters:

OEM No.5WK9 6790B
Model Number:5WK9 6790B
Voltage:24V
OEM NO:51.15408-0019
Kreation Model #:K10980

Measuring Rang of NOx 0~2500ppm O2: -12%~21%
Precision/Accuracy of NOx 0~100ppm:±10ppm;100~500ppm:±10%;

500~1500ppm:±15%; 1500~2500ppm:±30%

Precision/Accuracy of O2 0%~5%:±0.25%;5%~21%:±5%
Light-off The measurement status can be reached within 160 seconds
Response Time T(10-90%): NOx<5300ms

T(10-90%): O2<4900ms

Supply Voltage 24V
Length of Cable 410mm.650mm,950mm,customized
Discharge Temperature 800℃
Place of Origin HuZhou,ZHejiang,China
Part Name NOx sensor

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Application and After-Sales Service:

OEM No.5WK9 6790B
Application:Truck
Warranty:12 Months Every product will be tested before the shipment, if you get any problems with our product, please contact us in the first time, we will response as soon as possible.

We have a highly automated production line and MES system to help us keep good quality and reliable cooperation for global valued customers.

We have obtained the CMMI and IATF16949 certification, with advanced and mature project management experience and product research and development experience, adopt international advanced “V” process development, strictly ensure the quality of the product from the source, the company always stick to the core values of innovation, responsibility, high efficiency, rapid response to customer needs, continuing to create more value for customers.

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