A Guide to the Mettler Toledo Dissolved Oxygen Sensor

The purpose of a dissolved oxygen sensor or meter is to measure the overall levels of gaseous oxygen in a sample of water. The reason for such measurement is to determine overall water quality and therefore reliable testing equipment or instrumentation is needed to deliver accurate results. 

Water parameters are not only tested in drinking water but also in marine systems, groundwater, and even aquariums. If you are looking to perform highly analytical or safety checks then the Mettler Toledo Dissolved Oxygen Sensor is a suitable choice. We discuss the reasons to use the range of sensors across different applications. 

Choosing the Right Dissolved Oxygen Sensor 

Because dissolved oxygen sensors play such a vital role in determining water quality, it is important to choose the right instruments for specific applications. 


The dissolved oxygen meter is meant to measure the volume of dissolved oxygen that is present in a liquid. When you have a healthy aquatic environment, it will support aerobic organisms and sustain life at a minimum of 5mg/L. 

Because dissolved oxygen (DO) plays such an important part in maintaining the health of aquatic ecosystems, it is imperative that the most reliable instruments are used to determine sustainability. 

It is important to note that the level of dissolved oxygen will fluctuate in natural environments depending on the time of day, temperature, and season. The complicated interplay of environmental factors plays an important role in the measurement and should be carefully considered when taking the necessary readings. For example, measuring DO in the early hours of the morning will produce different readings in the mid-afternoon because cooler water temperatures naturally have more DO than warmer temperatures. 

By using the appropriate DO measurement instrument, you can also measure parameters such as pH, temperature, and conductivity. The Mettler Toledo range of DO meters not only provides ease of maintenance and use but these tools are highly precise in their measurement. You can find a variety of devices suited to outdoor environments or controlled environments such as a lab. 

With the Mettler Toledo Dissolved Oxygen Sensor, it is easier to assess the required parameters in aquatic environments. These instruments are also used to examine the amount of DO in controlled settings such as a lab environment where water purification testing is needed. For the best results with the highest levels of accuracy, the Mettler Toledo DO range can provide the reliability that you seek. 

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