Heavy-Duty Engines

RedNOx offers advanced sensor solutions for Heavy-Duty Engines, designed to meet the rigorous demands of upcoming regulations like the 2027 U.S. EPA & CARB

The Problem

OEMs face the 2027 U.S. EPA & CARB 0.02 g/hp-hr NOx limit while customers demand < 1 gallon/h fuel-penalties. Current electrochemical sensors bottom out at ~50 ppm.

Our Fix

1 – 20 ppm detection with ±10 % error

This keeps you inside warranty margins.

Plug-and-play ECU interface.

One harness, two CAN frames per second.

Heater-optimised ceramic stack

That reaches temperature in < 30 s — meets cold-start FTP.

Cloud API & dashboard

Trigger regen or urea-dosing only when needed, saving up to 5 % DEF.

Use Case Flow

Sensor bolts into the after-treatment slip joint.

Data flows via J1939 to the ECU (closed-loop) and via LTE to RedNOx Cloud.

Fleet manager views per-truck NOx intensity & fuel/NH₃ trade-off curves.