ProDSS Multiparameter Digital Water Quality Meter


The YSI ProDSS handheld multiparameter meter is a versatile instrument for measuring water quality. It offers two main cable options to suit your specific needs:

  • Fully Loaded 4-Port Cable Assembly: This option provides maximum flexibility by allowing you to equip the instrument with any four DSS sensors. You can choose sensors for parameters like dissolved oxygen, turbidity, pH, conductivity, and more, including an optional depth sensor.

  • ODO/CT Probe and Cable: This option prioritizes accurate dissolved oxygen (DO) measurements. It features an optical DO sensor for reliable readings and an inline conductivity sensor for real-time salinity compensation. This ensures your DO measurements are accurate even in varying salinity conditions.

No matter which cable option you choose, the YSI ProDSS provides a user-friendly and reliable solution for water quality monitoring.

SKU: 131201 Categories: ,


ProDSS Multiparameter Digital Water Quality Meter

The YSI ProDSS (Digital Sampling System) redefines portable water quality monitoring for professionals. This versatile multiparameter instrument empowers you to measure a comprehensive suite of critical parameters across diverse aquatic environments. From pristine surface water to complex wastewater treatment plants, the ProDSS equips you with the tools to make informed decisions and ensure environmental health.

Designed for Efficiency and User-Centric Operation

The ProDSS prioritizes both ease of use and data accuracy:

  • Extensive Parameter Measurement: Measure a wide range of parameters, including dissolved oxygen (optical), turbidity, total algae, pH, ORP, conductivity, salinity, and much more (refer to the comprehensive list below). This eliminates the need for multiple instruments, streamlining field data collection.
  • Smart Sensor Technology: Intelligent sensor technology allows for automatic sensor recognition and calibration data retention. This simplifies operation and reduces the risk of errors.
  • Intuitive Interface: A large, backlit color display, user-friendly menu navigation, and a long-lasting rechargeable battery enhance your field experience. The instrument boasts extensive data storage capabilities and comes with KorDSS, a powerful data management software (included) for seamless data analysis and reporting.

Uncompromising Durability for Demanding Field Conditions

The ProDSS is meticulously engineered to thrive in harsh environments:

  • Rugged Construction: The instrument features a military-grade design with a waterproof case (IP-67) and a rubber over-mold. This ensures protection from physical impact, dust, and moisture ingress.
  • Versatile Cable Options: Single cables with lengths up to 100 meters offer customization for diverse sampling depths. User-replaceable cables minimize downtime and cost in the long run. The four-port cables accommodate any combination of sensors, including an optional depth sensor for comprehensive data collection.
  • Durable Sensors: The ProDSS utilizes robust titanium smart sensors that can be conveniently replaced in the field. The ODO/CT probe boasts a pre-installed sensor cap with a 2-year warranty for added peace of mind.

Tailored to Your Specific Monitoring Needs

The ProDSS provides exceptional flexibility to cater to your unique monitoring requirements:

  • Modular Design: The system offers a modular design, allowing you to choose the sensors you need and configure a ProDSS tailored to your application.
  • Extensive Sensor Compatibility: The ProDSS works seamlessly with various YSI sensor/cable assemblies. You can configure a DO-only instrument or integrate an optical BOD probe for laboratory BOD measurements.
  • Optional Features: Enhance your monitoring capabilities with an optional GPS for location tracking and a depth sensor for comprehensive data collection.

Maximizing the Potential of Your ProDSS

  • Seamless Data Management: The included KorDSS software facilitates data management, analysis, and report generation. Additionally, the USB on-the-go connector allows for convenient data transfer to external devices.
  • Global Usability: The ProDSS caters to a global audience with its support for multiple languages, including English, Spanish, French, and Chinese.
  • Long-lasting Investment: The ProDSS comes with a 3-year warranty on the instrument and a 2-year warranty on cables (sensor warranties may vary). This signifies YSI’s commitment to providing a reliable and long-lasting monitoring solution.

YSI ProDSS: The Complete Water Quality Monitoring Solution

The YSI ProDSS is a comprehensive water quality monitoring solution designed to empower environmental professionals with unparalleled versatility, user-centric features, and rugged construction. Whether you’re monitoring surface water quality, ensuring compliance in wastewater treatment facilities, or managing aquaculture environments, the ProDSS equips you with the tools and data necessary to make informed decisions and achieve optimal results.

Key Specifications:

  • Parameters Measured: Dissolved Oxygen (optical), Turbidity, Total Algae (Phycocyanin & Phycoerythrin), pH, ORP, Conductivity, Specific Conductance, Salinity, TDS, Resistivity, Seawater Density, TSS, Depth (optional), GPS Coordinates (optional), Ammonium, Ammonia, Chloride, Nitrate, Temperature, Barometric Pressure
  • Cable Options: Single cable design (up to 100 meters), User-replaceable 4-port cables for versatility
  • Sensors: Digital smart sensors with automatic recognition and calibration data storage, Titanium construction for field durability
  • Display: Large, backlit color display for clear visibility in all lighting conditions
  • Data Storage: Extensive memory capacity for storing over 100,000 data sets
  • Software: KorDSS software (included) for data management, analysis, and reporting
  • Durability: Rugged, waterproof case (IP-67) with rubber over-mold

Additional information


Rechargeable lithium-ion battery pack providing ~48 hours of battery life (instrument only with backlight off)


floats, IP-67 (even with the battery cover off)

Operating Temperature

0 to 50°C (32 to 122°F)

Parameters Measured

Dissolved Oxygen (%), Dissolved Oxygen (mg/L), Temperature, Turbidity, Conductivity, Specific Conductance, Resistivity, Salinity, Water Density, pH, ORP, Ammonium, Nitrate, Chloride, Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Depth, Barometer

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