Electrochemical Oxygen Sensors for Automotive Exhaust Measurement
% O2 Sensors-Automotive Exhaust Measurement, the electrochemical oxygen sensors specifically designed to measure oxygen levels in automotive exhaust gases. These sensors help determine combustion efficiency, since the oxygen concentration in the exhaust directly reflects how efficiently the engine burns fuel.
As a result, many manufacturers and service centers use these sensors in automotive emission analyzers and smog-test equipment to monitor and verify engine performance.
Sensor Technology
% O2 Sensors-Automotive Exhaust Measurement, offered by AST use a proprietary electrolyte formulation combined with specialized sensing element materials. This carefully engineered combination allows the sensor to tolerate high concentrations of carbon dioxide (CO₂) typically present in automotive exhaust streams.
In contrast, many standard electrochemical oxygen sensors experience significant performance degradation when exposed to elevated CO₂ levels. Consequently, those sensors may fail prematurely or provide inaccurate readings. AST sensors overcome this limitation and therefore provide more stable performance and longer operating life in exhaust monitoring applications.
Replacement Sensors
AST sensors are designed as direct replacements for several widely used oxygen sensor models, including:
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Teledyne Class R-17A, R-21A, and R-22
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Envitec OOA-101 and OOA-101-1
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City Technology AO2 and AO3
In addition, AST offers replacement sensors compatible with models from other major sensor manufacturers, making them suitable for a wide range of automotive exhaust gas analyzers and emission testing systems.
