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YSI™ Model 550A Dissolved Oxygen Meter

Rugged DO Meter designed for the field

Specifications

Accuracy (DO) 0 to 20mg/L, ±0.3mg/L or 2% of reading, whichever is greater, 20 to 50mg/L, ±6% of reading
Accuracy (Temperature) ±0.3°C
Battery Life 2000 hr.
Battery Type C Alkaline
Certifications/Compliance CE, IP67
View More Specs

Includes: Four C batteries, DO/temperature probe, cable; available with and without carrying case

Products 2
Catalog Number Mfr. No. Includes Length (English) Cable Length (Metric) Cable Price Quantity & Availability  
Catalog Number Mfr. No. Includes Length (English) Cable Length (Metric) Cable Price Quantity & Availability  
13-298-120
Accessories View Documents
YSI™
550A25
Meter, DO/temperature probe, 4 C Batteries, Cable 25 ft. This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.
N/A
13-298-118
Accessories View Documents
YSI™
550A12
Meter, DO/temperature probe, 4 C Batteries, Cable 12 ft. This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.
N/A
Description

Description

  • Accurate measurement of dissolved oxygen and temperature simultaneously
  • Waterproof, impact-resistant case
  • Innovative field-replaceable DO electrode with screw-on cap membranes
  • Quick sinking, weighted probe
  • Large easy-to-read backlit display
  • Features calibration in % and mg/L, altitude and temperature compensation, and a low battery indicator

Order Info

Available with 12–, 25–, 50–, and 100 ft. cables. Replacement DO electrode sold separately. Dimensions: 9L x 4 3/4 x 2 1/2 in.H (23 x 12 x 6cm).

Certifications

CE marked CE compliant

Compliance

Meets IP67 requirements

Warranty and Services

Three-year warranty on instrument and one-year warranty on replaceable electrode

Specifications

Specifications

0 to 20mg/L, ±0.3mg/L or 2% of reading, whichever is greater, 20 to 50mg/L, ±6% of reading
2000 hr.
CE, IP67
IP-67
DO, Temperature
9 in.
0 to 50mg/L
0.1°C
0.1% Air Saturation
3 Years
0.91 kg
12 cm
±0.3°C
C Alkaline
9 x 4.75 in. (23 x 12 cm)
Thermistor
2.5 in.
23 cm
0.01, 0.1mg/L
0 to 500% Air Saturation
23°F to 113°F
2 lb.
4.75 in.
SDS
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