Ultra-Sensitive Emissions Sensors for Agriculture
Cut emissions, reduce compliance costs, and unlock operational savings—faster than regulatory deadlines
RedNOx develops ultra-sensitive gas sensors for heavy-duty engines, generators, and agriculture—delivering real-time NOₓ and N₂O data to help customers comply with EPA/CARB standards and improve profitability.

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Sensor Specifications
Our dual-sensor platform enables sub-ppm detection of NOx and ppb-level detection of N₂O—enabling earlier intervention, smarter controls, and lower emissions-related costs.
RedNOx™ HDE & Genset Sensor
Detection Floor
< 1 ppm-NOx
Accuracy
±10 % @ 0.5-20% ppm
T90 Response
< 5 seconds
Output
CAN-J1939 / Modbus / RS-485
Operating Temp
–40 … +700 °C
Ingress
IP6K9K
Lifetime
> 3,000 h
AgriNOx™ N₂O Sensor
Detection Floor
< 100 ppb-N₂O
Accuracy
±5 % @ 0.1–5 ppm
T90 Response
< 3 seconds
Output
LoRaWAN / BLE
Operating Temp
–10 … +60 °C
Ingress
IP67
Lifetime
> 5,000 h
Why it matters
Slash Fuel Costs, Avoid Fines, and Cut Greenhouse Gas Emissions
Eliminating even one ppm of NOₓ today prevents both an air-quality fine and a greenhouse-gas penalty tomorrow. By cutting NOₓ emissions, which drive smog and acid rain, and reducing N₂O, which has a global warming potential 298 times that of CO₂, you can slash fuel costs, avoid fines, and cut greenhouse gas emissions.

Solutions
Precision Monitoring for Every Emission Challenge

Heavy-Duty Engines
Reduce SCR-related costs by 10–20% through early NOₓ detection. Avoid non-compliance penalties up to $50,000/engine.
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Gensets & Prime Power
Reduce fuel consumption by up to 8% and extend maintenance intervals by 15–30% via load-based NOₓ tuning.
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AgriNOx – Precision N₂O Monitoring
Earn $20–$50/acre in voluntary carbon markets by validating nitrogen efficiency and reducing N₂O emissions.
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A product line-up Adapted to Your Needs
Design for Tomorrow's Regulations, Today.
The RedNOx sensor provides the precision and durability you need to meet stringent emissions standards, including the 2027 U.S. EPA & CARB 0.02g/hp−hr NOx limit. With a detection range of 1-20 ppm and an accuracy of ±10%, you can maintain warranty margins and ensure your products are compliant. The plug-and-play ECU interface and J1939 data flow simplify integration into your engine systems. The heater-optimized ceramic stack reaches temperature in less than 30 seconds, allowing you to meet cold-start FTP requirements. Our solid-state construction is resistant to sulfur, oil aerosols, and thermal shock, ensuring a field life of over 10,000 hours. Each sensor is factory-calibrated against NIST-traceable blends, and the data is stored in memory, simplifying ISO 9001 and regulatory reporting
1ppm
NOx
5-10%
Potential DEF Saving
>5,000 hrs
Sensor Lifetime

Press Release

RedNOx Partners with Nihon Yamamura Glass, Secures $2M to Revolutionize Emissions Monitoring
We’re excited to announce that RedNOx Inc. has expanded its partnership with Nihon Yamamura Glass (NYG), a leading Japanese ceramics and glass manufacturer.
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RedNOx Awarded SBIR Phase I for its Innovative Greenhouse Gas Measurement Platform
FREMONT, Calif., August 28, 2023 (GLOBE NEWSWIRE) -- RedNOx Inc., a trailblazer in environmental solid-state sensing technology, is delighted to announce its recent achievement in securing a Phase I Small Business Innovation Research (SBIR) award for its groundbreaking atmosphere and soil greenhouse gas measurement platform.
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