Water Testing Supplies » Oxygen Tests » YSI 550A Dissolved Oxygen Meter

YSI 550A Dissolved Oxygen Meter

Looking for a rugged, field worthy instrument for measuring dissolved oxygen? The YSI 550A DO features a waterproof, impact resistant case and innovative field replaceable DO electrode modules. Measures dissolved oxygen and temperature simultaneously using YSI's proven polarographic technology for oxygen and YSI Precision™ thermistors, the worldwide standard for accuracy.

The YSI 550A DO has a built-in calibration chamber, direct salinity and altitude compensation. The instrument provides simultaneous readings of oxygen and temperature. Dissolved oxygen readings are automatically compensated for temperature.

• Waterproof! Meets IP67 specifications
• Field-replaceable DO electrode modules
• Over 2000 hours battery life
• Calibrate in either mg/L or % saturation
• User-selectable temperature units (°C or °F)
• Easty-To-Use back lit display
• Measures dissolved oxygen and temperature
• 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.