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Optical vs. Electrochemical Dissolved Oxygen Meters

Optical vs Electrochemical Dissolved Oxygen Meters

When testing for dissolved oxygen in the field, an important thing to consider is the type of dissolved oxygen (DO) meter to use. There are several different types of DO sensing technologies, most of which fall under the category of optical or electrochemical sensors. All of these technologies have advantages and disadvantages which must be considered including maintenance, the measurement process, and initial cost.