YSI EcoSense DO200A Dissolved Oxygen Meter

Accurate, economical DO measurements
  • Automatic temperature compensation
  • Manual input for salinity and barometric pressure compensation
  • Easy-to-replace screw-on cap membranes



The DO200A combines low cost with a rugged, waterproof design–making it ideal for spot testing in wastewater, surface water, or aquaculture. Meter features easy-to-use interface, one-hand operation, and results in mg/L (ppm) or % saturation with temperature, salinity and barometric pressure compensation. Meter also has easy-to-replace membrane cap, auto shutoff, low battery indicator, and nonvolatile 50 data sets memory with calibration.

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