YSI EcoSense ODO200M Optical Dissolved Oxygen Meter
Features
- Rugged, waterproof, field-worthy case
- Waterproof micro-USB port for transferring data to PC; no software required
- Holds 250 data sets; no need to write down data
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The ODO200M is designed for quick, accurate measurements at an affordable price. The maintenance-free optical dissolved oxygen sensor and easy-to-use handheld make the ODO200M ideal for many applications at an affordable price. The "M" stands for memory, and the instruments feature a real-time clock, larger memory and simple data transfer to a PC with a built-in USB port. The ODO200M's optical sensor is easy-to-use and provides accurate data without the hassle of membrane changes and frequent calibrations.
Benefits
- Rugged, waterproof, field-worth case. IP-67 rated
- Simultaneously measures dissolved oxygen and temperature
- Durable field probe and cables made in the USA. 1-, 4- and 10-meter cables available
- Waterproof micro-USB port for transferring data to PC; no software required
- Holds 250 data sets; no need to write down data
- Real-time clock for date/time stamp of saved data
- User-selectable re-calibration prompt provides reminder to calibrate
- Automatic temperature compensation; manual input for salinity and barometric pressure compensation
- 1-year warranty on instrument, probe/cable and sensor cap
- Replaceable optical sensor cap with 1-year warranty (12-18 month expected life)
- (1) EcoSense ODO200M dissolved oxygen meter
- (1) USB cable
- (1) 9V alkaline battery
- (1) Operations manual
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A multi-disciplinary team at Miami University, Ohio, has been studying the environmental change at Acton Lake for over three decades. Using three different NexSens buoys over this time, the team has an incredible archive of data that is helping build a picture of Acton’s past, present, and future. 
 
Until recently, a NexSens CB-50 buoy was used alongside other environmental monitoring at Acton Lake. In May 2025, the Miami team deployed a new XB-200 buoy , future-proofing their ongoing monitoring using real-time buoy systems. 
 
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The goal of the Institute is to work with local communities and land agencies to improve watershed and forestry management through informed practices and public outreach. The goals of the Yuba Watershed Institute are three-fold: 
 
 	 Improve the ability of fire suppression agencies like the California Department of Forestry and Fire Protection ( CAL FIRE ) and the US Forest Service.
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