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YSI 550A DISSOLVED OXYGEN INSTRUMENT |
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| True Field Performance Looking for a rugged, field-worthy instrument for measuring dissolved oxygen? The new YSI 550A DO 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 TM thermistors, the worldwide standard for accuracy. |
· Waterproof! Meets IP-67 specifications 
· Field-replaceable DO electrode modules · Screw-on cap membranes · 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 · Expanded DO and salinity ranges for a wider application range · Three-year warranty on the instrument and one-year on the DO module and cable! |
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| Packed With Features 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 550A DO has a built-in calibration chamber, low-battery indicator, direct salinity, and altitude compensation. The instrument provides simultaneous readings of oxygen and temperature. Dissolved oxygen readings are automatically compensated for temperature. Please click here to view the 550A specification sheet as a pdf. |
Frequently Asked Questions about the YSI 550A DO Instrument
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