YSI* Model 55 Dissolved Oxygen Meters

Field proven, the YSI 55 instrument measures dissolved oxygen in mg/ml or percent saturation. Offering push-button calibration with a built-in chamber, direct salinity, and altitude compensation, the YSI 55 provides simultaneous readings of oxygen and temperature. Dissolved oxygen readings are automatically compensated for temperature.
. Probe is weighted for quick sinking
. Large, easy-to-read backlit display
. Cables are available in 12, 25, or 50 foot lengths
. Meets IP65 water tightness requirements
. Low battery indicator on the display
. CE compliant version available