The YSI 55 is a handheld water quality meter that measures oxygen and temperature. The YSI 55 has simple push-button calibration, a built-in probe storage chamber, backlit display for easy viewing in any light and convenient probe designs. Other features on this water quality meter include automatic temperature compensation and water-resistance to IP65 standards.
The YSI 55 water quality meter measures dissolved oxygen in mg/L or % saturation and also has manual salinity compensation of 0 to 40ppt. The YSI 55 has a dissolved oxygen measurement range of 0to 20 mg/L or 0 to 200%, resolution of 0.01 mg/L or 0.1% and accuracy of ±0.3 mg/L or ±2% saturation respectively. The YSI 55 has a temperature measurement range from -5 to 45°C, with 0.1°C resolution and ±0.2°C accuracy.
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