Dissolved Oxygen

  • Established on 5 continents
  • More than 20 sensors
  • Energy efficient digital sensors
  • Sensors compatible with our transmitters, portable devices, loggers

Discover fast and reliable dissolved oxygen measurement with Aqualabo’s state-of-the-art OPTOD probes. Select your sensor according to your specific needs – choose between rugged stainless steel, titanium, or innovative plastic probes. These cutting-edge optical sensors guarantee precision without the hassle of constant calibration. Aqualabo’s commitment to excellence ensures they meet the demands of field work and sustained campaigns. Improve your water quality assessments with our versatile and durable sensors that offer optimal performance in a wide range of applications, setting a new standard in dissolved oxygen measurement.

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French Design and Manufacture for more than 70 years
Technical Support and Internal Service
Global presence, network of distributors
ISO 9001 certified company

Our Oxygen sensors can be integrated on any system offering an RS485 or SDI12 input and on our transmitters, portable equipment or datalogger.

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OPTOD sensor Stainless steel or Titanium version

The OPTOD sensor employs luminescent optical technology, adhering to both ASTM and ISO standards. With stainless steel or titanium bodies, it offers precise dissolved oxygen measurement in many applications.

OPTOD plastic sensor

Our DO measurement OPTOD PLASTIC features our high-end luminescent optical technology, offers two different strainers to choose from and an optional antifouling solution. It’s a cost-effective solution for aquaculture applications.

Why measure dissolved oxygen in water?

Understanding the dissolved oxygen levels in water is paramount for comprehensive water quality assessment. Low levels indicate potential harm to aquatic life, risking biodiversity and ecosystem balance. Conversely, elevated levels may lead to eutrophication, fostering algal blooms and jeopardizing water ecosystems. Reliable dissolved oxygen measurements are pivotal for effective environmental management, allowing for timely interventions to maintain ecological health. Aqualabo’s advanced OPTOD sensors provide the precision needed to monitor and address these critical factors, ensuring sustainable water resource utilization and safeguarding aquatic environments from potential threats. Accurate measurements empower decision-makers to implement proactive strategies for environmental preservation and responsible water management.

Main applications of Aqualabo’s Dissolved Oxygen measurement solutions in water

Aqualabo’s DO probes find essential applications in urban wastewater treatment, industrial effluent treatment, surface and sea water monitoring, fish farming, aquariums, and drinking water assessment. Therefore, Aqualabo’s OPTOD sensors serve as indispensable tools across these diverse applications, playing a pivotal role in safeguarding water ecosystems. In urban wastewater treatment, they ensure the effectiveness of aeration processes, while in industrial effluent treatment, precise measurements are vital for regulatory compliance. These probes find significance in surface and sea water monitoring, providing crucial data for environmental assessments. In aquaculture, fish farming, and aquariums, maintaining optimal dissolved oxygen levels is essential for aquatic life.

Measurement principles used by Aqualabo dissolved oxygen sensors

Aqualabo’s OPTOD sensors use luminescent optical technology approved by ASTM International Method D888-05 & ISO 17289:2014. This technology eliminates the need for constant calibration and ensures precision in dissolved oxygen measurement. Concentration calculations are based on temperature-compensated saturation measurements (internal NTC sensor) and external pressure and salinity information. Using ultra-low power technology, they provide accurate readings even at low oxygen concentrations by not consuming oxygen. The “smart” sensors store calibration data internally for seamless plug-and-play operation. Universal Modbus RS485 and SDI12 protocols offer easy connectivity and provide users with reliable DO data for effective environmental monitoring and water quality management.

Why use and trust Aqualabo’s Dissolved Oxygen probes?

Aqualabo’s commitment to advanced technology, durable materials and strict quality standards sets us apart. Available in stainless steel, titanium, or plastic, our OPTOD sensors can be easily integrated into your specific solution thanks to our open Modbus protocol. Known for their accuracy and reliability, these DO probes are suitable for both field work and real-time online monitoring. Choosing one of Aqualabo’s DO sensors gives you access to a complete solution with optional anti-fouling protection, enjoying the benefits of virtually no calibration and no consumables other than the membrane, reducing maintenance and making our probes reliable and long lasting.

Autres parametres

Dissolved Oxygen FAQ

Aqualabo DO membranes can last up to 24 months in continuous operation. Spare membranes can be stored in the dark for long periods without expiration date.

Yes, our sensors are available in stainless steel, titanium, and plastic versions, ensuring suitability for challenging environments, including corrosive conditions. The stainless-steel variant, with a passivation treatment, is robust and resilient, while the plastic or titanium versions provide a corrosion-resistant alternative. Whether facing aggressive industrial effluents or saline conditions, Aqualabo's probes guarantee reliable DO measurements, making them the ideal choice for diverse environmental monitoring scenarios.

They find applications in diverse fields, including urban wastewater treatment, industrial effluent treatment, surface water monitoring, among others. They excel in fish farming and aquaculture.

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