Looking for a rugged, field-worthy instrument for measuring dissolved oxygen? The new YSI 550A DO instrument features a waterproof (IP-67), impact-resistant case and innovative field-replaceable DO electrode modules. Measure dissolved oxygen and temperature simultaneously using YSI’s proven polarographic technology for oxygen and YSI Temperature Precision” thermistors, the planetwide standard for accuracy. Our new PE membranes provide faster response times with less stirring dependence – saving time with every reading!
Measurements are fast and easy with one-hand operation, an easy-to-use backlit display, low-battery indicator, automatic push-button calibration, and a weighted, quick-sinking probe. The YSI 550A DO has a built-in calibration chamber, direct salinity, temperature, and altitude compensation. The instrument provides simultaneous readings of oxygen and temperature.
YSI 550A (Dissolved Oxygen, Temp) Test Test Test Test Test Test Test Test
FEATURES
- Faster response time!
- Waterproof! Meets IP-67 specifications
- Field-replaceable DO electrode modules
- Screw-on cap membranes
- PE membranes lessen stirring dependence!
- Over 2000 hours battery life
- Calibrate in either mg/L or % saturation
- User-selectable temperature units (°C or °F)
- 12, 25, 50 and 100-foot cable lengths
- Manual salinity input from 0 to 70 ppt
- Three-year instrument warranty, one-year on the DO module!
