4-channel transmitter 
Liquiline CM444

Expandable multiparameter field device for all industries

Liquiline CM444 is a digital multiparameter transmitter for process monitoring and controlling in any application. Modules can be added at any time to fit your process. The 4-channel controller saves you time and money by offering seamless system integration, simple operation and a reduced need for spare part stock. Liquiline CM444 provides you with all the benefits of a best-in-class transmitter platform from clever simplicity to maximum process safety.

Liquiline CM444 is a state-of-the-art transmitter for pH, ORP, conductivity, oxygen and more.

Liquiline CM444 is a state-of-the-art transmitter for pH, ORP, conductivity, oxygen, chlorine, turbidity, sludge level, SAC, nitrate and many other parameters.


·         lever simplicity: 
One controller for all parameters and applications, intuitive user interface, automatic sensor recognition, hot plug & play with pre-calibrated Memosens sensors.

·         Highest flexibility: 
Universal modules for all parameters minimize spare part stock and allow for easy 1-click extension to up to 8 channels at any time.

·         Seamless system integration: 
Unique portfolio of communication standards suits every distributed control system (DCS).

·         Simple and safe commissioning: 
Saving configuration on SD card enables fast set-up on duplicate installations.

·         Process control from a distance: 
Integrated web server that allows the operator to remotely view diagnostic data, perform configurations, or access device parameters in any web browser - even via Smartphone.

·         Higher availability, lower costs: 
Heartbeat Technology enables status-oriented maintenance and easy verification of the entire measuring point and helps to carry out optimization measures.

Field of application:


The Liquiline CM444 multiparameter transmitter is suitable for all applications in non-hazardous areas, for example in these industries and their utilities:

·         Food & Beverages

·         Life Sciences

·         Power & Energy

·         Water & Wastewater

·         Chemicals

Liquiline CM444 features all common communication protocols and interfaces, such as:

·         0/4...20 mA

·         HART

·         PROFIBUS DP

·         Modbus TCP / Modbus RS485

·         EtherNet/IP

·         Webserver

Features and specifications:

Measuring principle

Sensor ORP / Redox



Additional components

1.    RNB130
Primary switched-mode power supply for DIN rail

Power supply for one 4 wire sensor or transmitter.


2.    Memograph M RSG45
Advanced Data Manager

3.     Ecograph T RSG35 
Universal Graphic Data Manager