YSI Model 58 Portable Dissolved Oxygen Meter

The YSI Model 58 is a versatile instrument engineered to measure dissolved oxygen concentrations and temperature in water and other fluids. It features a digital LCD readout for clear visibility in diverse lighting conditions and offers two temperature-compensated modes for accurate DO readings. The device includes manual salinity correction ranging from 0 to 40 parts per thousand (ppt), accommodating measurements in both freshwater and saltwater. Designed with a rugged, gasketed ABS case, the Model 58 is water-resistant, making it suitable for challenging field conditions. It operates on line power or batteries, with the capability to hold additional batteries for an optional DO field stirrer. The instrument is compatible with various YSI probes, including the 5239, 5718, 5905, 5750, and 5740 models, enhancing its adaptability across different applications.

Features:

• Measurement Range:
  • Dissolved Oxygen: 0 to 20.0 mg/L
  • Percent Air Saturation: 0 to 200.0%
  • Temperature: -5°C to +45°C
• Resolution:
  • Dissolved Oxygen: 0.01 mg/L
  • Percent Air Saturation: 0.1%
  • Temperature: 0.1°C
• Accuracy:
  • Dissolved Oxygen: ±0.5% of reading, ±2 least significant digits
  • Temperature: ±0.1°C
• Salinity Compensation: Manual adjustment from 0 to 40 ppt
• Power Supply: Operates on 115V or 230V line power; also functions with four D-size alkaline batteries, providing approximately 1,000 hours of operation
• Durability: Water-resistant, gasketed ABS case suitable for field use
• Additional Features: Recorder output capability; optional DO field stirrer compatibility