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YSI™ Model 550A Dissolved Oxygen Meter

Rugged DO Meter designed for the field

Manufacturer: ysi™  YSI550A25

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Catalog No. 13-298-120

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Description & Specifications


Warranty 3 Years
Width (English) 4.75 in.
Length (English) Cable 25 ft.
Width (Metric) 12cm
Includes Meter, DO/temperature probe, 4 C Batteries, Cable
Length (English) 9 in.
Resolution (DO) 0.01, 0.1mg/L
IP Rating 67
Battery Life 2000 hr.
Sensor Types Thermistor
Saturation Range 0 to 500% Air Saturation
For Use With (Application) DO, Temperature
Weight (Metric) 0.91kg
Length (Metric) 23cm
Weight (English) 2 lb.
Dimensions (L x W) 9 x 4.75 in. (23 x 12cm)
Accuracy (DO) 0 to 20mg/L, ±0.3mg/L or 2% of reading, whichever is greater, 20 to 50mg/L, ±6% of reading
Temperature (English) Range 23° to 113°F
Saturation Resolution 0.1% Air Saturation
Resolution (Temperature) 0.1°C
Height (English) 2.5 in.
Accuracy (Temperature) ±0.3°C
Battery Type C Alkaline
Certifications/Compliance CE, IP67
Range (DO) 0 to 50mg/L