Monitoring and Control Systems

GroAqua offers a variety of monitoring of monitoring and control system for measuring a wide range of parameters. We work together with our clients to design a system to meet the needs of individual sites, whilst providing ongoing support for farms.

We offer the full range of OxyGuard systems which cater for farms both large and smaller, as well as transportation monitoring systems

Monitoring Systems
Monitoring Systems

OxyGuard Commander Pacific

Commander Pacific systems are process control systems that can be made to any practical size and can monitor and control everything on the fish farm!

Monitoring Systems
Monitoring Systems
Monitoring Systems
Monitoring Systems

OxyGuard Pacific

Pacific is a measuring, monitoring and control system designed for use in fish farms. it is both multi-channel and multi-parameter and forms a modular small size complete system. A member of the Commander series of equipment, it can be used both as a a stand-alone system, or as part of a larger Commander Pacific system

  • Up to 20 probes (wired and wireless)
  • Measure Dissolved Oxygen, Temperature, pH, CO2, Redox, Ozone, Salinity, Total Gas Pressure (TGP)
  • Combination of relays and digital inputs/outputs (up to 30 of each)
  • P-Net, API Interface, TCP/ModBus, TCP/IP, USB
  • Built-in data logger
  • Touch Screen

OxyGuard Marlin

Marlin is a single-channel measurement transmitter instrument explicitly designed for use in aquaculture.

One of the critical advantages of Marlin is its water resistance, which means it can be used in various wet environments without fear of damage.

You can order Marlin with the probe of your choice to meet your needs:

  • Carbon Dioxide (CO2)
  • pH/Redox
  • Total Gas Pressure (TGP)
  • Temperature
  • Salinity
  • Ozone
  • Any other probe with 4-20 mA input (e.g. Model 420)


Marlin features a 4-20mA output and MODBUS/TCP for PLC/SCADA compatibility, making integrating your existing systems easy.

It is also Cobália compatible, ensuring seamless communication with the Cobália digital management system.

Whether running a commercial aquaculture operation or simply monitoring the water quality in your backyard pond, Marlin is the perfect tool!

Monitoring Systems
Monitoring Systems
Full Farm Monitoring
Full Farm Monitoring

OxyGuard Convoy Pacific

Pacific Convoy system is a system designed to control, monitor and record the dissolved oxygen of tanks in vehicles or boats used for transporting living fish. Pacific Convoy is very versatile and is individually customised to fit your needs.

See More on the Webshop

To explore our full range of products and services, we encourage you to visit our webshop. Our webshop offers a wide range of products and services for aquaculture and fish farming, including aeration systems, fish handling equipment, filtration systems, feeders, and monitoring tools. Browse our selection to find the perfect fit for your operation.

We are here to
guide you

Do you have questions, speculations or want to
chat about possibilities, get in touch.

Mark Farquhar

Sales (UK & Ireland)


Lindsay McCrae

Sales (UK & Ireland)