Dissolved Oxygen Measurement and Control Instrument

Dissolved oxygen monitoring and control instruments detect the concentration of dissolved oxygen in water through electrochemical or optical sensors. The electrochemical method uses membrane-covered electrodes to generate current signals, while the optical method relies on the quenching effect of fluorescent substances. These instruments are used to monitor oxygen levels in water bodies, ensuring the survival of organisms and suitable conditions for chemical reactions. They are commonly employed in wastewater treatment, aquaculture, and industrial process control.
Selection
When selecting, ensure the measurement range covers the actual requirements and consider the temperature compensation function. Electrochemical sensors require regular replacement of membranes and electrolytes, while optical sensors require less maintenance but are more expensive. Choose corrosion-resistant materials based on the characteristics of the medium, and ensure the output signal is compatible with existing equipment. On-site calibration functionality is convenient for long-term use.

Terms

Standards

Instruments

Measurement range of 50ppm dissolved oxygen and 600% Saturation, support pressure, temperature and salinity automatic compensation, can be used continuously for about 200 hours, with IP67 waterproof rating.

$ 1409.00

Using high density polyethylene (PE) oxygen permeable membrane to achieve efficient oxygen diffusion, equipped with ABS plastic screw cap structure for easy installation and electrolysis filling, and interact with the current system for accurate measurement of dissolved oxygen concentration.

$ 243.00

Polarography dissolved oxygen Measurement range 0.00~ 50.00mg/L, Response Time ≤ 45s, support automatic temperature compensation and salinity compensation, with IP65 Protection Rating, Data storage 500 sets and GLP standards.

$ 674.00

The use of PTFE oxygen permeable membrane to ensure oxygen permeability, spiral cap design for easy installation and electrolysis filling, suitable for Portable dissolved oxygen measurement equipment maintenance.

$ 243.00

Equipped with polarographic dissolved Oxygen electRode, Measurement accuracy +/- 0.5mg/L, support automatic temperature compensation and manual salinity compensation, full waterproof design to ensure harsh environment use, built-in a number of custom paraMeter settings.

$ 361.00

Optical inspection fluorescence technology for measurement of dissolved oxygen, no polarization time, fast Response and not affected by Flow velocity; Built-in temperature sensor, Measurement range 0.00-50 mg/L, accuracy up to 1.5% +/- 0.01mg/L; Protection Rating IP68, suitable for harsh environments.

$ 3401.00

With pH, ORP and dissolved oxygen three measurement functions, support 1-5 point calibrating and automatic ElectRode diagnosis, can store 500 sets of data and have USB Communication interface, Measurement accuracy of +/- 0.002pH and +/- 0.2mg/L.

$ 593.00

With pH, ORP, dissolved oxygen three measurement functions, support automatic temperature compensation and salinity compensation, built-in 500 data storage, equipped with USB Communication interface, Measurement accuracy of +/- 0.002pH.

$ 630.00

With 7-inch TFT display and 1000 sets of data storage, support automatic temperature, salinity and atmospheric pressure compensation, Measurement range 0.00~ 20.00mg/L, accuracy +/- 0.2mg/L, suitable for a variety of dissolved oxygen related paraMeters determination.

$ 612.00

Equipped with 7-inch touch color screen, support conductivity 0-2000mS/cm and dissolved oxygen 0-20mg/L measurement, with automatic temperature and pressure compensation, 1000 sets of Data storage and IP54 Protection Rating, intelligent and convenient operation.

$ 971.00

Built-in three measurement units can simultaneously detect pH, Conductivity Detector and dissolved oxygen, support automatic temperature compensation and ElectRode diagnosis, with IP54 Protection Rating, data storage capacity of 500 groups, support GLP specification to achieve data traceability.

$ 1142.00

Using PTFE oxygen permeable membrane, the probe cathode and anode are isolated from the sample, and oxygen passes through the membrane and acts with the polarographic system to generate current to ensure accurate and reliable measurement.

$ 299.00

Polarographic ElectRode Design, Measurement accuracy up to 0.2mg/L, support salinity and atmospheric pressure compensation, automatic temperature compensation to ensure full scale accuracy, optional test time to calculate oxygen consumption rate, detailed data management functions.

$ 370.00

Optical inspection dissolved oxygen Sensor technology, strong and durable, measurement depth of 100 Meters, accuracy of +/- 0.2mg/L (8mg/L). Probe removable replacement, easy maintenance, suitable for long-term underwater monitoring.

$ 2387.00

Support conductivity 0-200mS/cm and dissolved oxygen 0-20mg/L measurement, with automatic temperature compensation, ElectRode diagnostic function and IP54 Protection Rating, Data storage up to 450 groups and support Bluetooth printout.

$ 841.00

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