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Perfect Protection of Components

Exhaust Gas Temperature Sensors (EGTS) monitor the temperature of the exhaust gas, ensuring that exhaust gas cleaning components achieve optimal conversion rates. Niterra has been developing EGTS for OE and the Aftermarket for many years.

285 Aftermarket part numbers, covering 61 million cars in Europe

Efficient engine, turbo charger and environmental protection

Measurement range from -40°C to 900°C

Easy to stock and select with clever packaging solution

EGTS Technologies

Temperature sensors use resistors whose resistance changes with temperature. Two different types of sensors are common: PTC and NTC. While with PTC (Positive Temperature Coefficient) resistance increases with rising temperature, with NTC (Negative Temperature Coefficient) resistance decreases with rising temperature. All NTK sensors are NTC types. NTC sensors are more accurate in measuring than PTC sensors; but as NTC sensors used to be sensitive on high temperatures, mostly PTC were used to measure exhaust gas temperature. NTK EGT Sensors use temperature resistant elements that cover a range from -40°C up to 900°C. When it comes to the installation position of EGT Sensors, the sensor specialist supplies products such as vehicle-specific sensors that:

  • measure the exhaust gas temperature before and after the turbocharger
  • measure the exhaust gas temperature before and after the diesel oxidation catalytic converter
  • are fitted before/after the diesel particulate filter and/or the 3-way catalytic converter

EGTS Requirements

EGT Sensors serve as a temperature monitor for turbochargers, catalytic converters, diesel particle filters and nitrogen oxide reduction systems. They are used to monitor the optimum operating point, to protect the relevant components from temperature overload and to keep them in the desired temperature range for optimal conversion rates, thus making them an important component for the reduction of harmful emissions from vehicles.


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This video shows the different installation positions of Exhaust Gas Temperatur Sensors.

TekniWiki: Technical Know-how

A platform for gaining detailed technical know-how

Frequently Asked Questions - Exhaust Gas Temperature Sensors

What is an exhaust gas temperature sensor (EGTS)?
How do EGTS work?
How do you test an exhaust gas temperature sensor (EGTS)?
What does the presence of a ‘p2033’ code indicate on an EGTS?
Where is the exhaust gas temperature sensor (EGTS) located?
Can you clean an exhaust gas temperature sensor (EGTS)?
What are the symptoms of a faulty exhaust temperature sensor (EGTS)?
What is the correct functioning temperature for an exhaust temperature sensor (EGTS)?

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The iconic brands - NGK and NTK - have built up highly impressive levels of brand loyalty and will therefore continue to exist for the company’s respective ignition and sensor businesses.

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