• 626663
  • Usually ships in 6 weeks



  • Dissolved Oxygen (% saturation)
    • Range: 0 to 500%
    • Accuracy at 0 to 200%: ±1% of reading
      or 1% saturation, whichever is greater
    • Accuracy at 200 to 500%: ±8% of reading
  • Dissolved Oxygen (mg/L)
    • Range: 0 to 50 mg/L
    • Accuracy of 0 to 20 mg/L:
      ±0.1 mg/L or 1% of reading, whichever is greater
    • Accuracy of 20 to 50 mg/L: ±8% of reading
  • DO Resolution
    • 0.01 mg/L and 0.1%, or 0.1 mg/L and 1%
      (auto-adjusts based on range)
  • Temperature
    • Range: -5 to 70°C
    • Accuracy: ±0.2°C
    • Resolution: 0.1°C or 0.1°F
  • Narrow design fits in a 1-inch well
  • Rugged optical DO sensor cap pre-installed on new assemblies
  • Military spec (MS) connector and weighted, stainless steel probe guard
  • Color display and backlit keypad
  • Long-life rechargeable lithium-ion battery
  • Storage for 400 calibration records
  • 100 user-defined sites and data ID tags
  • Onboard memory with capacity for >100,000 data sets
  • Data export directly to USB flash drive (included)
  • 2-year warranty on cable, sensors, and ODO cap


The YSI 626663 ProSolo ODO/T Kit includes the ProSolo dissolved oxygen meter (626650), the ODO/T probe assembly with 4-meter cable (627200-4), and soft-sided carrying case (603162).

The ProSolo handheld is part of YSI's ProDIGITAL platform. The ODO/T probe and cable assembly pairs with the ProSolo to form a complete sampling system using advanced dissolved oxygen measurement technology. The handheld incorporates smart sensor technology that enables sensors to be automatically recognized. The sensors also store calibration data, so probe assemblies can be swapped between handhelds without the need for recalibration.

The luminescent-based, optical DO sensors are non-consumptive, meaning that oxygen is not consumed during measurement. As a result, there is no flow dependence or stirring required with ODO, allowing for the most accurate readings in the field. Additionally, optical DO sensors have less drift over time, hold calibration longer, and require less maintenance than electrochemical sensors because there are no membranes or electrolyte. A simple, threaded optical cap contributes to ease of maintenance.

The meter includes KorDSS Software, a powerful data management program for easy 2-way communication between the meter and a PC. A unique data backup feature allows for the export of data to a USB flash drive (included) in csv format without having to connect to a computer. The ProSolo handheld meets the demands of true field work with a rugged, waterproof case and a military-spec cable connector. Rigorously drop tested from all angles, the handheld features a 3-year warranty. The ProSolo is ideal for applications including aquaculture, coastal, estuary, and wetland sampling.