Online Dissolved Oxygen Monitoring System

Dissolved oxygen online analyzers detect the concentration of dissolved oxygen in water using electrochemical or optical sensors. The electrochemical method employs membrane-covered electrodes to generate current signals, while the optical method utilizes the fluorescence quenching effect of luminescent materials. They are used for real-time monitoring in scenarios such as wastewater treatment and aquaculture.
Selection
When selecting, consider that the measurement range should cover actual needs. Electrochemical sensors require regular replacement of membranes and electrolytes, while optical sensors have lower maintenance requirements but higher initial costs. Choose based on water cleanliness—models with self-cleaning functions are suitable for turbid water. Ensure that the output signal is compatible with the existing control system.

Terms

Standards

Instruments

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

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

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

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

Support 1 or 2 point calibrated, Measurement accuracy +/- 0.5mg/L, with automatic temperature compensation and manual salinity pressure compensation function, can customize alarm limit and RS485 communication output.

$ 472.00

PTFE oxygen permeable membrane ensures oxygen permeability, ABS plastic material enhances durability, screw cap design simplifies installation process, suitable for long-term water quality monitoring applications.

$ 243.00

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

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

Can simultaneously measure pH, dissolved oxygen and temperature paraMeters, support automatic temperature compensation and ElectRode diagnosis, data storage capacity of 450 groups, with statistical analysis and Bluetooth printing function, dustproof and waterproof grade IP54.

$ 812.00

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

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

With conductivity 0-2000mS/cm and dissolved oxygen 0-20mg/L wide range measurement, support automatic temperature compensation and air pressure compensation, 3.5 inch color screen display, data storage capacity of 3000 groups, Protection Rating is IP57.

$ 670.00

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

Equipped with 7-inch color Touchscreen, support 5 ElectRode management and 1000 data storage, with three reading modes and automatic temperature and pressure compensation function, dissolved oxygen Measurement range 0-90mg/L, accuracy +/- 0.10mg/L.

$ 2045.00

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

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