O2 Transmitters

Oxygen Transmitters – PPM and % O₂ Measurement

Applied Sensing Technologies (AST) provides high-performance PPM and percent oxygen transmitters engineered for continuous, reliable monitoring. Because modern industrial systems demand constant visibility into gas composition, these loop-powered 4–20 mA transmitters deliver precise, real-time oxygen data directly to control systems. As a result, operators can respond quickly to changing conditions while maintaining process stability.

Flexible Installation for Diverse Applications

To begin with, AST designs its oxygen transmitters for installation flexibility. Available in both in-line and wall-mount configurations, these units integrate seamlessly into new systems as well as retrofit applications. Consequently, facilities can upgrade their oxygen monitoring capabilities without complex modifications.

Furthermore, AST transmitters perform reliably in inert gases, gaseous hydrocarbons, and gas streams containing reactive gases such as CO₂. This versatility makes them suitable for a broad range of applications, including:

Continuous process monitoring
Glove box oxygen control
Food packaging gas verification
CO₂ purification processes
Medical-grade oxygen measurement
Oxygen purity analysis
Confined space oxygen concentration monitoring

Whether installed directly in a process line or mounted remotely for area monitoring, the transmitters provide stable and accurate output across both trace (PPM) and percent oxygen ranges.

Designed with Safety in Mind

Equally important, AST prioritizes safety in demanding industrial environments. For operations located in hazardous areas, transmitters are available with intrinsically safe designs compliant with Class I, Division I, Group IIC requirements. Therefore, even in environments where flammable gases may be present, facilities can maintain continuous oxygen monitoring without compromising safety.

Proven Sensor Technology at the Core

At the same time, measurement accuracy depends on sensor performance. For that reason, each AST oxygen transmitter incorporates an industry-proven electrochemical micro fuel cell sensor designed specifically for oxygen detection. This technology ensures rapid response, excellent stability, and long operational life.

Moreover, AST designs, develops, and manufactures these sensors in the USA. By controlling the entire production process, the company maintains strict quality standards and consistent performance across all products.

Continuous Monitoring with Confidence

Ultimately, reliable oxygen measurement requires more than signal output—it requires trust in every reading. By combining loop-powered simplicity, installation flexibility, intrinsic safety options, and proven sensor technology, AST oxygen transmitters deliver dependable monitoring in even the most demanding applications. As a result, industries gain greater control, enhanced safety, and confidence in every measurement.