Starting at $381.25 Starting at $362.19
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  • IP67 Waterproof housing
  • Automatic temperature compensation
  • 1-year instrument warranty
  • 4- and 10-meter field cables available or lab self-stirring BOD probe
  • Manual input for salinity and pressure compensation
  • Low battery indicator with 500 hour battery life
  • Screw-on cap membranes with low stirring and fast response
  • Auto shutoff function after 30 minutes of inactivity
  • 50 data set memory
  • Operating temp: 32 to 122°F (0 to 50°C)


The YSI EcoSense DO200A Dissolved Oxygen / Temperature Meters provides the most accurate data in the most affordable format. The instruments feature an easy-to-use interface, one-hand operation, IP67 waterproof case, and low cost of ownership over the life of the product. The DO200A simultaneously measures dissolved oxygen (% air saturation and ppm) and temperature.

The DO200A is designed for quick, accurate results in an economical platform. The ability to measure DO and temperature in a simple, compact handheld allows the instrument to be used across multiple application sampling strategies from the field to the lab with the optional BOD probe. With a one-year instrument and electrode warranty, waterproof case and ease-of-use, the EcoSense DO200A will fit your needs.