Total Dissolved Gas
Total Dissolved Gas Sensor

Hydrolab's Total Dissolved Gas (TDG) sensor uses a pressure transducer mounted behind a rigid gas-permeable silicone membrane to measure amount of total gaseous compounds dissolved in a liquid.

 

Features:

  • TDG is measured in units of pressure (mmHg)
  • This pressure includes the partial pressure of all gas species dissolved in the water

Benefits:

  • Real-time measurement indicates water supersaturated with atmospheric gases, which can cause gas bubble gill disease in aquatic organisms

Product Data:

Range: 400 – 1300 mmHg
Accuracy: +/- 0.1% of span
Resolution:  1.0 mmHg

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