AMPRO Technologie GmbH
NOx Sensor
Description
The NOx sensor measures the proportion of nitrogen oxides in a vehicle’s exhaust gas and enables efficient exhaust gas purification in conjunction with an SCR catalyst.
The aim is to keep nitrogen oxide emissions within the legal limits, making engine combustion as efficient as possible.
Most vehicles use two NOx sensors, installed before and after the SCR catalyst, they are used in most Euro 5 & 6 diesel vehicles.
The complex ceramic chip in the sensor head takes measurements directly in the hot exhaust stream, then the electronics continuously communicate the NOx values via bus to the ECU.



