Dissolved Oxygen Sensors are the vital instruments used to monitor gaseous oxygen levels in liquids, serving as the “pulse” of biological and chemical processes. These sensors provide the real-time data necessary to automate aeration blowers, ensuring life-sustaining levels in aquaculture and optimal decomposition rates in wastewater treatment (STP/ETP).
From fermentation tanks to industrial effluent basins, our sensors deliver the reliable feedback required for advanced industrial automation and energy-efficient process control.
Ruggedized for ETP: Our probes feature IP68-rated submersible housings designed to withstand harsh industrial effluent conditions.
Benefit from rapid local support, including calibration services and replacement sensor caps from our Bangalore facility.
Our optical models eliminate the frequent membrane and electrolyte changes required by traditional sensors.
Our controllers and digital sensors integrate seamlessly with SCADA systems for centralized plant monitoring.
Nuicon offers both traditional electrochemical and modern optical sensors to meet your facility’s specific accuracy and maintenance needs.

Selecting the right measurement principle is key to reducing maintenance costs and improving data accuracy.
Ideal For:
Aeration tanks, aquaculture, fermentation, and environmental water monitoring.
Features:
Robust submersible designs, rapid response times, and specialized membrane/cap technology.
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A reliable electrochemical sensor that uses a membrane and electrolyte to measure oxygen partial pressure.
Ideal For:
General water treatment, laboratory testing, and cost-sensitive industrial applications.
Features:
Replaceable membranes, fast response times, and proven reliability in consistent flow environments.
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An advanced optical "smart" sensor that uses light-based technology to measure oxygen concentrations without consuming oxygen.
Ideal For:
Low-flow environments, aeration tanks with high bio-fouling, and remote monitoring.
Features:
No electrolyte or membranes required, immunity to H2S interference, and extremely low maintenance.
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Monitor and automate your oxygen levels with industrial-grade control hardware.

A high-precision transmitter that displays real-time DO levels and manages automated aeration equipment.
Ideal For:
Ideal For: PID control of blowers, aquaculture pond management, and industrial fermentation.
Features:
Large backlit LCD, 4-20mA output, RS485 Modbus communication, and adjustable alarm relays.
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They require much less maintenance, don’t need electrolytes, and provide stable readings in environments with zero flow.
For critical aeration control, we recommend a simple air calibration once every 2 to 4 weeks to maintain high precision.
Yes. Our sensors include Automatic Temperature Compensation (ATC) to correct for solubility shifts caused by temperature.
Yes, both our Polarographic and Optical sensors are suitable for seawater, provided salinity compensation is applied.
Absolutely. We provide traceable NABL Calibration certificates from our Bangalore center to ensure your measurements are audit-ready.
Improve your process health and reduce energy costs with Nuicon’s advanced Dissolved Oxygen Sensors. Contact our engineering team today to find your perfect match.
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