The new YSI 550 DO features a waterproof,
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 Precision™
thermistors, the worldwide standard for accuracy.
Measurements are fast and easy with one-hand
operation, an easy-to-use backlit display, automatic
push-button calibration, and a weighted,
quick-sinking probe. The YSI 550 DO has a built-in
calibration chamber, low-battery indicator, salinity
and altitude compensation.
Features:
- Measures dissolved oxygen and temperature
- Field-replaceable DO electrode
- Easy -to-use, screw-on cap DO membranes
- 3-year warranty on the instrument; 1-year on
the probe modules
- Over 2000 hours of battery life
- Calibrate in either mg/L or % saturation
- User-selectable temperature units (°C or °F)
- Meets IP-68 water tightness requirements,
submersible to 3 feet.
Accuracy: ±0.3 mg/L or ±2% of reading, whichever
is greater; ±2% saturation or ±2% of reading,
whichever is greater; ±0.2° C. Range: mg/L; 0-200%
air saturation; -5° C to +45° C temperature.
Resolution: 0.01 mg/L; 0.1% air saturation; 0.1° C
temperature. Altitude: Auto compensation. Salinity:
Auto compensation. Power: 4 "C" cell batteries.
Warranty: 3-year for the instrument, 1-year for the
DO module.
