YSI 58 Dissolved Oxygen Instrument

The Model 58 has been discontinued on July 31, 2019. Recommended replacements include the Pro20, Pro20i, and ProSolo.

• Overview

  The YSI 58 is a proven field and laboratory instrument. The 58 displays oxygen concentrations in two temperature-compensated modes. The instrument offers manual salinity correction, recorder output, and operation from line power or batteries. The case also holds additional batteries for an optional DO field stirrer.

  • Portable
  • Lab and Field
  • Rugged
  • Works with a variety of YSI probes

  Instrument comes in 115V or 230V power supply. A probe must be purchased separately. The model 58 can be used with 5239, 5718, 5905, 5750, 5740 cable with 5739 probe. Probes, service and support will be available through 2024.

  Please visit our extensive dissolved oxygen resource page to learn about all things DO and BOD related; www.YSI.com/weknowDO

• Specifications

  Equipment used with	5750, 5905, 5239, 5740 cable with 5739 probe., 5718
  Measurement Range	Dissolved Oxygen: + 0.5% of reading, + 2 least significant digits (in the 0.01 mg/L mode), Salinity: 0.0 to 40.0 ppt
  Multiparameter	Yes
  Operating Temperature	0 to +45 °C
  Parameters Measured	Dissolved Oxygen, Salinity
  Power	4 D-size Alkaline Batteries (included). Approximately 1000 hours operation from each new set of batteries. Low battery indicator signal (LOBAT) appears automatically when approximately 50 hours of battery life remain.
  Sampling	Yes
  Storage Temperature	0 to +45 °C
  Unit of Measure	Salinity: ppt, % air saturation, Dissolved Oxygen: mg/L
  Warranty	2-year instrument
  Waterproof	every case opening is splash resistant., With RECORDER OUT, BATT ELIM and STIRRER receptacles capped

• Brochures and Catalogs
  • Water Monitoring Solutions | E58-07
  • Water Quality Sampling Field and Laboratory Instrumentation Catalog | W37-14
• Guides
  • YSI Classic Handhelds vs Pro Series Guide
• Manuals
  • YSI Model 58 User Manual