The Endress+Hauser Memosens COS51E Digital Oxygen Sensor is designed for all wastewater applications in both hazardous and non-hazardous areas. Its amperometric, three-electrode design provides highly accurate readings with long-term stability and low drift, making it an economic option for dissolved oxygen measurement services.

The integrated Memosens 2.0 digital technology allows the COS51E to log more historical data, enabling predictive maintenance and IIoT services. Non-contact, inductive signal transmission maximizes process safety and data security. The sensor requires little maintenance over its long service life.

With a measurement range of 0.01-100 mg/l and process temperature range of -5 to 60°C, the COS51E is suitable for wastewater and drinking water treatment plants, water quality monitoring in rivers, lakes, and seas, and utilities across all industries. The sensor features an integrated electrolyte counter and is available with multiple hazardous area certifications including ATEX, IECEx, and CSA.