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Using advanced ceramic sensor technology and a double-layered protection tube, this sensor withstands prolonged exposure to high-temperature exhaust gases while maintaining ±2.5% measurement accuracy (0-3,000 ppm NOx). Ideal for off-road machinery, marine engines, and large stationary generators, it ensures compliance with the most stringent emissions regulations, including EPA Tier 4 Final and IMO Tier III.
Extreme Temperature Resilience
High-Temp Sensor Element: Zirconia-based cell with thermal barrier coating (TBC) operates stably at 900°C for 10,000+ hours, 50% longer than standard sensors in similar environments.
Cooling Air Jacket: Optional air-cooled variant reduces sensor body temperature by 150°C in ultra-high-temperature applications.
Heavy-Duty Construction
Inconel 718 Housing: Resists corrosion from exhaust gases (SOx, NOx, HC) and thermal fatigue in cyclic loading conditions.
Vibration Resistance: Passes 50g random vibration testing (MIL-STD-810G), suitable for off-road and marine environments.
Wide Operational Envelope
Pressure Tolerance: Accurate measurement in exhaust pressures up to 3 bar (absolute), critical for turbocharged and supercharged engines.
Low NOx Sensitivity: Detects down to 10 ppm NOx, enabling precise control of low-emission aftertreatment systems.
System Integration
Dual CAN Interface: Supports both high-speed (500 kbps) and low-speed (125 kbps) networks for multi-ECU configurations.
Calibration Flexibility: User-programmable zero and span points via diagnostic tools for custom engine setups.
Off-Road Machinery:
Construction equipment (loaders, graders): Complies with EPA Tier 4 Final (NOx ≤ 0.14 g/bhp-hr) in diesel engines above 75 kW.
Agricultural tractors (100-500 hp): Ensures efficient SCR operation in high-load, variable-speed applications.
Marine Engines:
Main propulsion engines (2,000-10,000 hp): Meets IMO Tier III NOx limits (≤1.0 g/kWh at 130% MCR) in Emission Control Areas (ECAs).
Stationary Power:
Gas turbines (5-50 MW): Monitors NOx in combined heat and power (CHP) systems for ISO 14001 compliance.
Q: Is the air-cooled variant required for all high-temperature applications?
A: Only necessary when exhaust temperatures exceed 850°C—standard models suffice for most heavy-duty diesel engines (≤850°C).
Q: How does it handle particulate matter (PM) in exhaust?
A: The protective tube’s sintered metal filter traps PM ≥5μm, with periodic regeneration via ECU-controlled heating cycles.
Q: What is the maximum exhaust gas velocity it can handle?
A: Accurate measurement at gas velocities up to 80 m/s, suitable for high-flow turbocharged engines.
Q: Can it be used with alternative fuels like hydrogen diesel?
A: Validated for use with HVO (hydrogenated vegetable oil) and synthetic diesel; contact our engineering team for custom fuel certifications.
Nox Detection Range | 0～2500ppm O2：-12%～21% |
Nox Accuracy | 0～100ppm: ±10ppm;100～500ppm: ±10%; |
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 |
 |  |
Using advanced ceramic sensor technology and a double-layered protection tube, this sensor withstands prolonged exposure to high-temperature exhaust gases while maintaining ±2.5% measurement accuracy (0-3,000 ppm NOx). Ideal for off-road machinery, marine engines, and large stationary generators, it ensures compliance with the most stringent emissions regulations, including EPA Tier 4 Final and IMO Tier III.
Extreme Temperature Resilience
High-Temp Sensor Element: Zirconia-based cell with thermal barrier coating (TBC) operates stably at 900°C for 10,000+ hours, 50% longer than standard sensors in similar environments.
Cooling Air Jacket: Optional air-cooled variant reduces sensor body temperature by 150°C in ultra-high-temperature applications.
Heavy-Duty Construction
Inconel 718 Housing: Resists corrosion from exhaust gases (SOx, NOx, HC) and thermal fatigue in cyclic loading conditions.
Vibration Resistance: Passes 50g random vibration testing (MIL-STD-810G), suitable for off-road and marine environments.
Wide Operational Envelope
Pressure Tolerance: Accurate measurement in exhaust pressures up to 3 bar (absolute), critical for turbocharged and supercharged engines.
Low NOx Sensitivity: Detects down to 10 ppm NOx, enabling precise control of low-emission aftertreatment systems.
System Integration
Dual CAN Interface: Supports both high-speed (500 kbps) and low-speed (125 kbps) networks for multi-ECU configurations.
Calibration Flexibility: User-programmable zero and span points via diagnostic tools for custom engine setups.
Off-Road Machinery:
Construction equipment (loaders, graders): Complies with EPA Tier 4 Final (NOx ≤ 0.14 g/bhp-hr) in diesel engines above 75 kW.
Agricultural tractors (100-500 hp): Ensures efficient SCR operation in high-load, variable-speed applications.
Marine Engines:
Main propulsion engines (2,000-10,000 hp): Meets IMO Tier III NOx limits (≤1.0 g/kWh at 130% MCR) in Emission Control Areas (ECAs).
Stationary Power:
Gas turbines (5-50 MW): Monitors NOx in combined heat and power (CHP) systems for ISO 14001 compliance.
Q: Is the air-cooled variant required for all high-temperature applications?
A: Only necessary when exhaust temperatures exceed 850°C—standard models suffice for most heavy-duty diesel engines (≤850°C).
Q: How does it handle particulate matter (PM) in exhaust?
A: The protective tube’s sintered metal filter traps PM ≥5μm, with periodic regeneration via ECU-controlled heating cycles.
Q: What is the maximum exhaust gas velocity it can handle?
A: Accurate measurement at gas velocities up to 80 m/s, suitable for high-flow turbocharged engines.
Q: Can it be used with alternative fuels like hydrogen diesel?
A: Validated for use with HVO (hydrogenated vegetable oil) and synthetic diesel; contact our engineering team for custom fuel certifications.
Nox Detection Range | 0～2500ppm O2：-12%～21% |
Nox Accuracy | 0～100ppm: ±10ppm;100～500ppm: ±10%; |
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 |
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