Product Details
Nitrogen Oxide Sensor KGD - 325 for Monitoring Nitrogen Oxide
Levels in Diesel Vehicle Emissions
Product Introduction
The nitrogen oxide sensor KGD - 325 is used to monitor the nitrogen
oxide levels in diesel vehicle emissions to ensure compliance with
emission regulations. Usually, a diesel engine needs to be equipped
with two nitrogen oxide sensors. Common failure causes include
sensor carbon deposition, water ingress into the ECU, and circuit
damage, which can trigger engine malfunctions. 四方光电 (Sifang
Optoelectronics) safeguards the safe emissions of diesel vehicles
and has launched a series of nitrogen oxide sensors suitable for
diesel engines.
Product Features
- High - precision, good dynamic response, and continuous signal
output
- Wide coverage, supporting multiple connector types and cable
lengths
- High environmental tolerance, long service life, and high - quality
signal
- Fully - sealed waterproof design for better product performance
- Full coverage of core diesel - engine models in passenger cars,
commercial vehicles, etc.
- Meets China National V, China National VI, Euro V, and Euro VI
emission standards
Technical Parameters
Items | Details |
Measurement Range | 0 - 2500ppm |
Fuel Compatibility | Gasoline / Diesel / e85 |
Exhaust Pressure | ≤2.5bar |
Maximum Speed (Sensor Probe) | 490m/s² |
Maximum Acceleration (Electronic Controller) | 11Hz - 1000Hz, random 12.01g |
Mounting Thread | M20*1.5 |
Wrench Size | 22mm |
Tightening Torque | 40 - 60N·m |
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.