Please review all photos and read the description carefully for the item’s condition. What you see is exactly what you will receive. If an item has specific flaws or notable features, they will be clearly shown or mentioned in the listing.

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DETAILS:

YSI 550A Handheld Dissolved Oxygen DO Meter Water Quality Instrument w/ Cable

Pre-Owned

YSI 550A handheld dissolved oxygen instrument in good pre-owned condition with normal cosmetic wear from use.

Designed for field water-quality measurements, the YSI 550A provides dissolved oxygen and temperature readings through a rugged handheld platform. It features a large LCD display with backlight, straightforward push-button controls, and a durable water-resistant housing suited for environmental, laboratory, and water-monitoring applications. Includes the attached cable/components shown in the photos.

Brand: YSI

Model: 550A

Type: Handheld Dissolved Oxygen Instrument / DO Meter

Measurements: Dissolved Oxygen & Temperature

DO Range: 0–500% air saturation / 0–50 mg/L

Temperature Range: -5°C to 45°C

Display: LCD with backlight

Housing: Rugged IP-67 rated design

Power: 4 C-cell batteries

Color: Gray / Black

Included: YSI 550A meter with attached cable/components shown

Condition: Pre-owned with normal signs of previous use

Please review all photos and the description carefully. The item shown is exactly what you will receive, and any notable cosmetic wear is shown in the photos.

Ships promptly and will be securely packaged for transit.

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SHIPPING DETAILS:

Item/s will be packed securely and shipped with tracking. Orders ship same day or next business day after payment is received. We do not ship on weekends or holidays.

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RETURN POLICY:

We offer a 30-day free return policy on most items unless otherwise noted in the listing.

Items sold as "For Parts," "Repair," or "Untested" are final sale and not eligible for return.

To be eligible for a return and refund:

The item must be returned in the same condition it was received.

Factory-sealed items must remain sealed and unopened.

Items must not be modified, altered, or tampered with.

Once we receive and inspect the item, a full refund will be issued.