Dissolved Oxygen Meters

GAOTek presents high quality Dissolved Oxygen Meters (DOM) from some of the top suppliers in the world. Tracking dissolved oxygen levels can always be difficult, given the fluctuations due to water temperature or even time of the day. A dissolved oxygen meter can measure the amount of dissolved oxygen in a liquid. This is important particularly in evaluating the health of aquatic ecosystems. A healthy ecosystem is one with dissolved oxygen level of 5mg/L. Anything below this indicates an unhealthy environment, harmful for aquatic organisms inhabiting it or its surrounding environment.

The most accurate way to get the most precise reading for dissolved oxygen rate is to collect data over a 24-hour time span. If oxygen levels remain below 2mg/L for several hours, it can endanger living organisms that rely on safe oxygen levels. Photosynthesis also plays a role in the variation of dissolved oxygen levels. Waste produced as a result of photosynthesis can negatively affect the oxygen level in an ecosystem.

Oxygen sensors are also used in a few industries. Oxygen sensors are commonly used to measure the production of oxygen, and are commonly found in products like anaesthesia monitors.


GAOTek’s Dissolved Oxygen Meters feature a dissolved oxygen probe connected to an analyzer. The probe is made up of two electrodes placed inside a potassium chloride electrolyte solution. When immersed in water, oxygen in the water generates a current. This is reflected on the meter’s result screen. Since an apparatus like this is used several times in a day, GAOTek has ensured ease of use and portability in its selection of devices. Cleaning the probe is also important prior to using the device, to get the most accurate results. Given the fluctuation in oxygen rates, tests should be performed on-site for accurate results.


Accurate: GAOTek understands the importance of accurate measurement and data recording. We supply high-quality, reliable, and precise Dissolved Oxygen Meters that keep a patient or the ecosystem at large, safe and accurately monitored.

Low Cost: GAOTek provides some of the best Dissolved Oxygen Meters available in the market, at an affordable price.

Portable: Our devices are extremely portable for you to carry around for onsite measurements.

Easy to maintain: Maintaining the device is an important step in receiving the most accurate results, in addition to cleaning the chambers of the device. Our devices are extremely easy to operate and maintain.

Readable Results: Our devices have a clear display to indicate the data collected.

Automatic Temperature Compensation: The devices include an accurate temperature compensation feature that also helps arrive at accurate readings and measurements.

Memory: It is important to keep track of your results. With built-in memory storage, some of our devices can store up to 50 readings of data collected.

Data Hold: This function freezes or locks the measured result for easy viewing and recording.

Industry standards: These devices feature built-in real-time clock stamps to store data in order to meet the GLP Standard.

USB: Data stored in the devices can be transferred to a computer using the USB feature.


Dissolved Oxygen Meters play a critical role in many professions, for example, in an ecosystem of living organisms, a safe amount of dissolved oxygen can be the difference between life and death. Generally, having 5 mg/L or more of dissolved oxygen is recommended for keeping a healthy ecosystem, but due to many moving factors like the size of the ecosystem, time of the day, product waste of photosynthesis and temperature of the ecosystem, this goal is difficult to achieve and maintain. Our compact and portable Dissolved Oxygen Meters allow and facilitate accurate and convenient measuring, recording, and keeping track of data. Some of our Dissolved Oxygen Meters come with built-in USB ports. This facilitates transfer of data from the reader to another compatible device, like a computer that supports external USB devices. With additional storage available as a feature in some of our devices, you need not even worry about running out of space. Our Dissolved Oxygen Meters include features that help record accurate results. One such feature is Automatic Temperature Compensation that makes accurate readings possible even in environmental or industrial conditions of high temperature variations. GAO Tek supplies this important product at an affordable price as compared to DOMs on the market, without compromising the accuracy.

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