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.

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

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

Range:
400 to 1400 mmHg
Accuracy:
± 1.5 mmHg
Resolution: 
1.0 mmHg