Oxygen sensors and transmitters Products for high accuracy oxygen measurement in all industries 4-channel transmitter Liquiline CM444Expandable multiparameter field device for all industries. Flow assembly Flowfit CPA25Universal assembly for the water and wastewater industry and industrial auxiliary processes. 1-/2-channel transmitter Liquiline CM442Expandable multiparameter field device for all industries. 1-/2-channel transmitter Liquiline CM442RCompact multiparameter DIN-rail and cabinet device for all industries. 1-channel transmitter Liquiline Compact CM72Single-parameter field device for hazardous and non-hazardous applications in all industries. 1-channel transmitter Liquiline Compact CM82Multiparameter field device for hazardous and non-hazardous applications in all industries. Multiparameter handheld Liquiline Mobile CML18Mobile device for pH/ORP, conductivity, oxygen, and temperature measurement in all industries. Digital oxygen sensor Memosens COS51EMemosens 2.0 amperometric oxygen sensor for the wastewater industry and utilities.