Water Quality Probes - GroAqua

Water Quality Probes

Our OxyGuard probes measure and monitor many different parameters.
With advanced sensor technology we provide accurate and real-time data, essential for maintaining optimal conditions in aquaculture, wastewater treatment plants and other aquatic systems.


  • OxyGuard Probe for Model 840 and 810 (3 Wire Cable) Probe OxyGuard

    OxyGuard OxyGuard Probe for Model 840 and 810 (3 Wire Cable)

    The OxyGuard Standard Probe – the probe that revolutionised oxygen monitoring. The probe that you can purchase today is even better than the probe introduced in 1987 that helped revolutionize fish farming and make modern aquaculture the industry it is today.Today’s OxyGuard Standard Probe is hermetically sealed. If needed you can open it to replace the membrane and renovate it completely, but this should not be needed for many years. The measurement stability of the OxyGuard Standard Probe is also very high indeed. A probe measuring in air will maintain accuracy even when subjected to a sudden 20 degree celcius temperature change. The sensitivity of a probe measuring in clean air at room temperature will remain the same for at least 3 years. This proves that the OxyGuard probe is not, like some other probes, affected by “ageing”. OxyGuard believe that the OxyGuard Standard probe is more accurate, needs less attention and maintenance and has a lower total cost of ownership than any other oxygen or dissolved oxygen probe offered to the aquaculture industry today. *Accessories are shipped with every OxyGuard probe. You will thus be able to change the membrane if you manage to damage it during installation. Otherwise the accessories can be enough for up to 5 years’ use.

    $925.00

  • Oxygen Pacific LDO Oxygen Probe Probe OxyGuard

    OxyGuard Oxygen Pacific LDO Oxygen Probe

    OxyGuards new optical oxygen probe is developed in cooperation with world leading experts. Based on luminescence quenching of a sensor dye immobilized on a support foil it can be used for gas measurements as well as for dissolved oxygen (DO). The presence of molecular oxygen quenches the luminescence, changing its intensity and lifetime fully reversibly. The measurement principle is very robust.  It shows virtually no interference to other gases and has very low drift. Bleaching is not an issue because low energy red light excites the sensor spot and emission is NIR. Special features High-accuracy measurements of oxygen in gas or water (DO) Low drift Long lifetime Fast response Digital output of all major oxygen units Technical Data Sheet

    $3,300.00

  • OxyGuard DO Probe c/w NTC Sensor for mg/l (ppm) Probe OxyGuard

    OxyGuard OxyGuard DO Probe c/w NTC Sensor for mg/l (ppm)

    The OxyGuard Standard Probe – the probe that revolutionised oxygen monitoring. The probe that you can purchase today is even better than the probe introduced in 1987 that helped revolutionize fish farming and make modern aquaculture the industry it is today.Today’s OxyGuard Standard Probe is hermetically sealed. If needed you can open it to replace the membrane and renovate it completely, but this should not be needed for many years. The measurement stability of the OxyGuard Standard Probe is also very high indeed. A probe measuring in air will maintain accuracy even when subjected to a sudden 20 degree celcius temperature change. The sensitivity of a probe measuring in clean air at room temperature will remain the same for at least 3 years. This proves that the OxyGuard probe is not, like some other probes, affected by “ageing”. OxyGuard believe that the OxyGuard Standard probe is more accurate, needs less attention and maintenance and has a lower total cost of ownership than any other oxygen or dissolved oxygen probe offered to the aquaculture industry today. *Accessories are shipped with every OxyGuard probe. You will thus be able to change the membrane if you manage to damage it during installation. Otherwise the accessories can be enough for up to 5 years’ use.

    $1,505.00

  • OxyGuard Pacific DO Probe Probe OxyGuard

    OxyGuard OxyGuard Pacific DO Probe

    The OxyGuard Standard Probe – the probe that revolutionised oxygen monitoring.The probe that you can purchase today is even better than the probe introduced in 1987 that helped revolutionize fish farming and make modern aquaculture the industry it is today. Today’s OxyGuard Standard Probe is hermetically sealed. If needed you can open it to replace the membrane and renovate it completely, but this should not be needed for many years. DescriptionThe measurement stability of the OxyGuard Standard Probe is also very high indeed. A probe measuring in air will maintain accuracy even when subjected to a sudden 20 degree celcius temperature change. The sensitivity of a probe measuring in clean air at room temperature will remain the same for at least 3 years. This proves that the OxyGuard probe is not, like some other probes, affected by “ageing”. OxyGuard believe that the OxyGuard Standard probe is more accurate, needs less attention and maintenance and has a lower total cost of ownership than any other oxygen or dissolved oxygen probe offered to the aquaculture industry today. *Accessories are shipped with every OxyGuard probe. You will thus be able to change the membrane if you manage to damage it during installation. Otherwise the accessories can be enough for up to 5 years’ use.

    $1,225.00

  • OxyGuard Ozone Sensor Probe OxyGuard Low Range

    OxyGuard OxyGuard Ozone Sensor

    OxyGuard's developed ozone sensor is designed specifically for use in aquaculture. The sensor uses an entirely new innovative technology, and the partial pressure of ozone is measured directly without the use of electrolyte, reagents, light, or other traditional methods. As a result, there is almost no maintenance, the probe is exceptionally stable, and the response time is extremely fast.With the possibility to measure ozone content in the water down to only a few μg/L, it is possible to ensure safe conditions for the stock. Unit of Measurement: ppm (mg/l)Measuriing Range (Low): 0-0.8mg/l (best between 0 and 0.5)Mesauring Range (High): 0.5-8mg/lOperating Temperature: 0-40CDimensions: 40 x 104mmCable Legnth: 7mResponse Time: 90% in less than 45s (for the low range type)Medium: WaterInstallation: For use with Pacific or Marlin G20 OxyGuard Ozone Sensor Data Sheet

    $3,079.00 - $3,086.00

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