YSI Pro20i Dissolved Oxygen Water Quality Meter Handheld Probe Used Works

​Up for sale is a YSI Pro20i Dissolved Oxygen (DO) Handheld Instrument. Designed for rugged field and laboratory water quality testing, the Pro20i features a built-in, integral probe cable assembly and measures dissolved oxygen (% or mg/L), temperature, and barometric pressure.​Key Specs:
​Brand/Model: YSI Pro20i
​Type: Handheld Dissolved Oxygen & Temperature Meter
​Cable: Built-in / integral probe cable
​Build Quality: IP67 waterproof rating, rubber over-molded case, backlit graphic display, and glow-in-the-dark keypad.​Included in Listing:
​YSI Pro20i Handheld Unit
​Attached Integral Probe Cable
​(Note: No original box, manuals, DO sensor caps, membrane kits, calibration solution, or additional accessories are included. Only what is shown in photos/listed above.)​Condition:
​Used - Unit powers on and probe cable is intact.Calibration:
Unit last passed calibration on September 11, 2025. (Note: Recalibration may be required prior to field use depending on your testing protocols.)