YSI EcoSense DO200A Dissolved Oxygen Meter
Features
- IP67 waterproof rating
- 50 data set reviewable memory
- Comfortable, ergonomic design
Image | Part# | Product Description | Price | Stock | Order | |
---|---|---|---|---|---|---|
![]() | 606077 | EcoSense DO200A dissolved oxygen meter (cable/sensor sold separately) | $299.25 | Usually ships in 3-5 days | ||
![]() | 606071 | EcoSense DO200A dissolved oxygen meter kit: includes display, probe with 1m cable, & carrying case | $635.55 | Usually ships in 3-5 days | ||
![]() | 606072 | EcoSense DO200A dissolved oxygen meter kit: includes display, probe with 4m cable, & carrying case | $645.05 | Usually ships in 3-5 days | ||
![]() | 606040 | EcoSense DO200A dissolved oxygen meter kit: includes display, probe with 10m cable, & carrying case | $664.05 | Usually ships in 3-5 days |




Image | Part# | Product Description | Price | Stock | Order | |
---|---|---|---|---|---|---|
![]() | 606037 | 200-1 cable assembly with temperature/dissolved oxygen sensor, 1m | $315.40 | Usually ships in 3-5 days | ||
![]() | 605352 | 200-4 cable assembly with temperature/dissolved oxygen sensor, 4m | $320.15 | Usually ships in 3-5 days | ||
![]() | 605353 | 200-10 cable assembly with temperature/dissolved oxygen sensor, 10m | $339.15 | Usually ships in 3-5 days | ||
![]() | 609200 | 200-BOD stirring BOD probe with 5 ft. cable, 115V | $712.50 | Usually ships in 3-5 days | ||
![]() | 609201 | 200-BOD stirring BOD probe with 5 ft. cable, 230V | $741.95 | Usually ships in 3-5 days | ||
![]() | 606036 | 281 hard-sided carrying case for use with DO200A/DO200M | $39.90 | Usually ships in 3-5 days | ||
![]() | 605306 | 5908 PE yellow 1.25 mil cap membrane kit, 550A, DO200, 559 & 2003 polarographic sensors | $61.75 | In Stock |



The EcoSense line of compact, handheld instruments 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 with the following features:
- 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
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.
- (1) YSI EcoSense DO200A meter
- (1) 9V alkaline battery
- (1) Operations manual
No, the EcoSense DO200A dissolved oxygen meter does not include an internal barometer. The user will have to manually input the local pressure in mBars (1 mmHg = 1.33 mBar) when calibrating.
In The News
Watershed groups handing tech to volunteers for better citizen monitoring
Watershed protection groups across the country are collecting water quality data on waterways that might otherwise miss out on monitoring entirely. Some have found that, despite small staffs, they can compile more high-quality data by putting water quality sensors and other professional scientific instruments in the hands of volunteers. 
 
For organizations like the Santa Barbara Channelkeeper, the reasoning for equipping volunteers with electronic handheld meters is clear: 
 
"We really want the data that we're collecting to be utilized," said Ben Pitterle, director of the group's watershed and marine program.
Read MoreMoorings off Oregon coast give insights into dissolved oxygen dynamics
Each summer, deep ocean currents pull low-oxygen, high-nutrient water up onto Oregon's coastal shelf. This upwelled water is often implicated in the seasonal hypoxia that has become more frequent in the state's coastal waters. But a recent study of three summers of data from the ocean floor suggest that the upwelled water may also be the reason that matters aren't worse. 
 
Though scientists have known about the low-oxygen water making it's way onto the shelf for decades, the details of what happens once it gets there are foggy.
Read MoreYSI improves EcoSense handhelds

 
YSI recently released updated versions of the economical EcoSense handheld environmental testing devices that edge the EcoSense line closer to high-end handhelds. 
 
The update resulted from an aging product and feedback from the people who used the original versions every day, said YSI Product Manager Laura St. Pierre. “We were just trying the make it a better field tool,” she said. 
 
The new EcoSense pH100A, D0200A and EC300A replace products with the same names sans the “A.” 
 
While there wasn’t a drastic name change, the two model versions look completely different. Updated EcoSense models have an ergonomic design that better fits the palm. The curvaceous, gray case looks much cleaner than the previous version’s angular blue features.
Read More