Dissolved Oxygen Sensor

Dissolved oxygen (DO) comes from two main sources: the atmosphere and photosynthesis. Most aquatic organisms require DO to survive and it is important for chemical processes in aquatic environments. Dissolved oxygen probes work by measuring the amount of oxygen that diffuses across a permeable (or semi-permeable) membrane into a probe (sensor). Once oxygen is inside the sensor, a chemical reduction reaction occurs, producing an electrical signal. This signal is read by the DO probe and is displayed on a meter. Pokcenser provide two categories of dissolved oxygen sensors: optical and polarographic. DO sensor for fish farming is so important.

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Pokcenser Automation Technology Co., Ltd

Mobile: +86 181 7515 5326

Email: info@pokcenser.com

Tel: +86-731-8229 9492

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PCS4760PD Digital Dissolved Oxygen Sensor(Optical)

Features

Optical/Fluorescence method
0-20mg/L 0-200% measuring range
With temperature measurement and temperature compensation
Shell material: POM

PCS4760PD Digital Dissolved Oxygen Sensor(Optical)

Applications

General application
Drinking water
Environmental sewage
River and lake water quality
Seawater

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Advantages

High accuracy ±1%F.S.
IP68 water proof
Digital sensor, strong anti-interference ability, high stability, long transmission distance.

The digital dissolved oxygen meter with probe and waterproof do sensor for aquaculture is important for process monitoring. Pokcenser provides online do sensor 4-20ma output and dissolved oxygen meter with data logging as well.

Resources

Datasheet

File Name	Time	Type	Download
PCS4760PD Digital Dissolved Oxygen Sensor(Optical)	Sep 28, 2025	PDF

Technical Parameters

Model	PCS4760PD
Power supply	9~36VDC
Output	RS485 MODBUS RTU
Measuring method	Fluorescence method(Optical)
Dimensions	50*230mm
Shell material	POM
Waterproof grade	IP68
Measurement range	0-20mg/L, 0-200%
Measurement accuracy	±1%F.S
Pressure range	≤0.1Mpa
Temperature compensation	NTC10K
Temperature range	0-50℃
Calibration	Oxygen-free water calibration, air calibration
Connection method	4-core cable
Cable length	10m cable as standard (Customizable)
Installation thread	G3/4''
Scope of application	General application, drinking water, environmental sewage, river and lake water quality, seawater

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