Felix - Dissolved Oxygen Sensor (DO Sensor)

Dissolved oxygen (DO) measurements tells how much oxygen is available in the water for fish and other aquatic organisms to breathe. Healthy waters generally have high levels of DO (some areas, like swamps, naturally have low levels of DO). DO sensors us an oxygen-permeable membrane that sets up a current that indicates the level of oxygen present. These sensors often can read DO in the range of saturation (about 8 ppm) down to the part per billion (ppb) ranges.