Home » Products » NOx Sensor » NOx Sensor 5WK9 7331A
Features of NOx Sensor-5WK9 7331A
Features of NOx Sensor-5WK9 7331A Features of NOx Sensor-5WK9 7331A
Features of NOx Sensor-5WK9 7331A Features of NOx Sensor-5WK9 7331A
Features of NOx Sensor-5WK9 7331A Features of NOx Sensor-5WK9 7331A

loading

NOx Sensor 5WK9 7331A

Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
sharethis sharing button
The 5WK9 7331A NOx Sensor is a high-precision, OEM-grade component designed for real-time monitoring of nitrogen oxide (NOx) emissions in modern diesel and gasoline engines. Engineered to meet stringent automotive emission standards (e.g., Euro 6, Tier 4 Final, and China 6), this sensor plays a critical role in Selective Catalytic Reduction (SCR) systems, exhaust aftertreatment, and onboard diagnostics (OBD).
Availability:
Quantity:

NOx Sensor - 5WK9 7331A: Advanced Nitrogen Oxide Sensing Solution for Emission Control Systems


Overview


Built around zirconia-based sensing technology, this NOx Sensor sets new benchmarks for accuracy and durability in high-temperature emission monitoring. Its compact, lightweight design simplifies integration into modern after-treatment systems while delivering laboratory-grade performance in field conditions. By maintaining precise control over selective catalytic reduction (SCR) systems, it helps industries achieve ultra-low emission targets without compromising engine power or fuel economy.


Features


· High-Tolerance Design: Operates flawlessly in environments with extreme vibration (up to 15g RMS) and corrosive gas mixtures.

· Self-Diagnosis: Continuous health monitoring alerts users to sensor aging, poisoning, or electrical faults via CAN error codes.

· Wide Measurement Range: Covers 0–5,000 ppm NOx detection with linearized output for seamless PLC integration.

· Flexible Power Supply: Compatible with 12V DC or 24V DC systems, featuring reverse polarity and overvoltage protection.

· EMI Shielding: Triple-layer shielding eliminates signal distortion in electrically noisy industrial environments.


Advantages


· Rapid Calibration: Bluetooth-enabled mobile app allows field technicians to recalibrate in under 5 minutes without disassembly.

· Eco-Friendly: Manufactured using 85% recycled materials and fully RoHS-compliant production processes.

· Reduced Signal Drift: Advanced temperature compensation algorithms ensure <1% annual drift for long-term accuracy.

· Cost Savings: Enables precise urea dosing, cutting DEF consumption by 15% compared to conventional sensors.


Applications


· Commercial vehicle SCR systems for real-time AdBlue® injection control.

· Coal-fired power plants to optimize burner tuning and meet Clean Air Act requirements.

· Diesel-electric railway locomotives for emission compliance in underground tunnels.

· Mining dump trucks and excavators operating in high-altitude, low-oxygen conditions.


Why Choose the 5WK9 7331A?
Reliability: Proven in millions of kilometers of field testing.
Cost-Efficiency: Reduces SCR system downtime and maintenance costs.
Compliance: Ensures adherence to global emissions legislation.
For OEMs, aftermarket distributors, and fleet operators, the 5WK9 7331A NOx Sensor offers a trusted solution to optimize engine performance while minimizing environmental impact.


Nox Detection Range

0~2500ppm O2:-12%~21%

Nox Accuracy

0~100ppm: ±10ppm;100~500ppm: ±10%;
500~1500ppm: ±15%;1500~2500ppm: ±30%

O2 Accuracy

0%~5%: ±0.25%;5%~21%: ±5%

Light-off Time

Can reach detection state in 160s

Response Time

T(10-90%):Nox<5300ms T(10-90%):O2-4900ms

Supply Voltage

12V,24V in universal version

Design Life

6000h or 350000km


Nitrogen Oxide – NOx Sensor

1. Quality: We have strict quality standards and good reputation.
2. Low MOQ: It can meet your business needs.

5WK9 7331A 5WK9 7331A 5WK9 7331A


ABOUT US

Zhejiang Kreation Electronic Technology Co.,Ltd. is a smart sensor company invested and founded by E-Quality intelligent Technology Co., Ltd. (E-Quality for short).

QUICK LINKS

PRODUCT CATEGORY

CONTACT US

Tel: +86-15312270222
Email: jack.song@kreationtec.com
Add: 2nd Floor, Building No.7, 1888 Daishan Road, Wuxing District, Huzhou City, Zhejiang Province
Copyright © 2025 Zhejiang Kreation Electronic Technology Co.,Ltd. 浙ICP备2025148018号-1 All Rights Reserved.| Sitemap | Privacy Policy