AST-14D1 Oxygen sensor for SF2 and Titan rebreathers – Replacement to PSR-11-39-XD O2 sensor

AST-14D1 Oxygen Sensor for SF2 and Titan Rebreathers

The AST-14D1 Oxygen Sensor from Applied Sensing Technologies is designed for SF2 ECCR and Titan rebreather systems. It serves as a direct replacement for the SF2 Cell, AII-11-39-XD, and NRC International D-11K oxygen sensors.

The sensor features a female COAX SMB electrical connector, which ensures reliable and secure connection in compatible rebreather systems. Because it is a form-fit replacement, users can install the sensor easily without modifying the equipment.

In addition, the sensor incorporates a proprietary electrolyte formulation and optimized anode structure. This design ensures full utilization of the lead (Pb) anode, which helps extend the operating life of the sensor. As a result, the sensor provides long-term stability with minimal signal drift, thereby reducing the need for frequent calibration.

Furthermore, the geometry of the anode material plays an important role in the internal electrochemical reactions. The activated anode and its unique geometry help maintain excellent linearity from air up to 1.4 atmospheres of oxygen, which is critical for accurate oxygen monitoring in diving applications.

Finally, AST brand oxygen sensors are designed, developed, and manufactured in the United States by Applied Sensing Technologies, ensuring consistent quality and reliable performance.