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Coastal & Estuary
Flow & Discharge
Flood Warning
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Total Dissolved Gas (TDG) Sensor

Hydrolab TDG sensor measures the amount of total gaseous compounds dissolved in a liquid

Hydrolab's Total Dissolved Gas (TDG) sensor uses a pressure transducer mounted behind a rigid gas-permeable membrane to measure amount of total gaseous compounds dissolved in a liquid.
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  • Real-time measurement indicates water supersaturated with atmospheric gases, which can cause gas bubble gill disease in aquatic organisms
  • This pressure includes the partial pressure of all gas species dissolved in the water
Video - TDG Sensor Calibration - EN
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TDG Sensor
Range 400 ...… 1400 mmHg
Accuracy ± 1.5 mmHg
Resolution 1.0 mmHg
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