DO stands for Dissolved Oxygen, which is the measure of the amount of gaseous oxygen dissolved in a solution. In theory, the amount of DO in a solution is dependent on 3 factors, namely temperature, salinity, and atmospheric pressure. The measurement of DO requires a special DO electrode that is made up of an anode, a cathode, electrolyte solution, and a gas-permeable membrane.

Applications
Aquaculture: Use to monitor oxygen levels in catfish and shrimp farming; game stocking ponds; ornamental fish tanks and ponds; and in other fish farming applications.

Industrial: Ideal for checks the quality of plant water intake and discharge, wastewater, and water treatment, recirculating systems, and industrial process systems.

Environmental: Use to test water quality, monitor the health of aquatic ecosystems, survey surface, and groundwater drinking supplies.

Educational: Ideal for quick, accurate DO readings in laboratories and schools.

Features:
-User Customisation for user’s flexibility like toggling of various modes from ppm, mg/l to % saturation, view electrode diagnosis, etc.
-Easy Calibration can be performed at 100% and/or 0% and mg/l or ppm against a known solution
-Automatic Temperature Compensation (ATC) guarantees the highest accuracy under varying temperature condition
-Galvanic Cell allows instantaneous measurements, producing quick responses and eliminates polarisation; requires minimal maintenance
-Automatically Compensates Salinity and Barometric Pressure after manual input for increased accuracy.
-Hold Function momentarily freezes reading for easy viewing
-Auto-Power Off saves battery power after non-use
-Self-Diagnostic with message codes for easy troubleshooting
-Large Custom LCD provides optimum viewing even at a distance
-Protective Rubber Boot shields meter from accidental knocks and features a sturdy built-in stand for easy bench-top operation
-Rugged Carrying Case (Optional) provides handy on-site meter calibration and measurement