AST-17E Scuba Diving Oxygen Sensor Replaces NUVAIR 9506 and Teledyne R-17S1 O2 Sensor

The AST-17E diving oxygen sensor replaces Nuvair Model 9506 oxygen sensors and Teledyne Class R-17S1 oxygen sensors. This sensor is designed primarily for the Nuvair Pro O2 analyzer with an external high-output oxygen sensor. The analyzer is used to verify oxygen content in scuba cylinders with breathing gas mixture.

The model AST-17E diving oxygen sensor delivers an average signal output of 25 mV in air. The sensor with a fast response time, typically reaches to a 90% of a step-change in less than 9 seconds. The sensor offers an expected life up to 42 months in air at ambient temperature and pressure. This long service life helps reduce maintenance.

Equally important, the AST-17E oxygen sensor design focuses on long term stability. The sensor uses a super activated anode with a unique geometry, a smooth-surface oxygen-specific cathode, and a proprietary electrolyte formulation. This design prevents anode and cathode contamination and use of up to 80% of the lead (Pb) anode material thereby extending the sensor life. It also minimizes significant signal drift over time. Therefore, the sensor reduces span calibration frequency and improves day-to-day reliability.

In addition, the sensor’s optimized anode geometry strengthens internal electrochemical reactions. This engineering choice supports excellent linearity from air up to 1.6 atmospheres of oxygen. Therefore, the AST-17E oxygen sensor supports accurate oxygen monitoring for diving applications.

The sensor includes a 3.5 mm mono jack electrical connection and an M16x1 threaded front. The AST-17E oxygen sensor is designed, developed, and manufactured in the USA.