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    Features a built-in calibration chamber and push-button calibrations. Provides direct salinity, altitude and automatic temperature compensation. Select cable length or select the detachable cable option.

    The YSI 55 measures dissolved oxygen in water and displays the results in mg/L or % oxygen. 

    Item # Description/Size Availability Qty Break Price Quantity
    WQS150
    Cal Solution; DO, Zero O2 500 ml
    In Stock 1 $12.18
    WQM270-012
    YSI 55 Meter & Probe: Dissolved Oxygen w/ 12 ft Attached Cable
    In Stock 1 $850.00
    WQM270-025
    YSI 55 Meter & Probe: Dissolved Oxygen w/ 25 ft Attached Cable
    In Stock 1 $900.00
    WQM270-050
    YSI 55 Meter & Probe: Dissolved Oxygen w/ 50 ft Attached Cable
    In Stock 1 $1,000.00