Oxygen Sensors & Transmitters

Oxygen Sensors & Transmitters

Endress+Hauser’s Oxygen Sensors & Transmitters provide continuous dissolved oxygen (DO) measurement for water, wastewater, utilities, and hygienic processes. The range spans optical and amperometric principles with Liquiline transmitters that display concentration, percent saturation or partial pressure. Digital Memosens enables plug‑and‑play setup and traceable calibration.

They’re highly useful because optical probes deliver fast, stable values with very low maintenance, while amperometric probes cover trace‑to‑high oxygen. Liquiline adds Heartbeat diagnostics and verification plus broad connectivity - 0/4–20 mA, HART and major Ethernet/fieldbuses - with a web server for remote access.

Typical applications: energy‑saving aeration control in wastewater; monitoring fish farms and surface water; safeguarding drinking water; trace‑oxygen control in power‑plant feedwater; and fermentation or inertization in life sciences and food & beverage.

Build flexible systems with Oxymax optical sensors (COS61D for utilities, COS81D for hygienic duties) or the amperometric Oxymax COS22D for trace/process ranges. Pair with Liquiline CM42/CM14/CM44x transmitters and immersion, flow or retractable assemblies for basins, pipes, and tanks.

TriNova, your trusted Endress+Hauser Representative since 2002.