SRX-CT33 % Oxygen Sensor – Replaces C-3 and PSR-11-33

SRX-CT33 % Oxygen Sensor

The SRX-CT33 Oxygen Sensor designed for measuring higher levels of oxygen. The sensor offered by Applied Sensing Technologies (AST) supports industrial process gas analysis that requires fast response and high measurement accuracy. Because many industrial processes depend on rapid oxygen detection and longer operating life, this sensor delivers reliable performance and stable signal output for higher percent-level oxygen monitoring.

Replacement Compatibility

The SRX-CT33 Oxygen sensor serves as a direct drop-in replacement for several widely used oxygen sensors, including:

• Teledyne Analytical Instruments – Class C-3
• Analytical Industries Inc – PSR-11-33
• AMI – P-4

Because the sensor matches the mechanical and electrical configuration of these models, technicians can install it easily without modifying the analyzer.

Longer Life and Reliable Performance

Though T90 of this sensor is 30 seconds to a step change but offers 24 months life in air. Recommended for applications where oxygen levels is above 5-10% and is often exposed to ambient air. Its proprietary electrolyte formulation ensures full utilization of Pb anode thus providing longer life without signal drift and minimizing periodic calibration requirement.

Under ambient temperature and pressure conditions, the sensor provides an expected operating life of approximately 24 months. This combination of fast response and dependable service life makes it suitable for continuous industrial oxygen monitoring.

Designed and Manufactured in the USA

Applied Sensing Technologies designs, develops, and manufactures all its percentage and PPM oxygen sensors in the United States. By maintaining full control over engineering and production, AST ensures consistent quality, oxygen-specific performance, and reliable operation in industrial oxygen analyzer systems.