YSI ProDSS Digital Water Quality Meter

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The ProDSS is a rugged, portable water quality instrument designed for reliable sampling across a wide range of applications, including surface water, wastewater, coastal and estuarine monitoring, aquaculture, groundwater, and laboratory environments.

Built with advanced smart sensor technology, the ProDSS automatically recognises connected sensors while retaining their calibration data for faster setup and improved efficiency. Its flexible 4-port cable assembly allows users to configure any combination of four sensors, making it a highly adaptable solution for diverse water quality monitoring needs.

Measurement Parameters

The ProDSS supports an extensive range of water quality parameters, including:

  • Optical Dissolved Oxygen (ODO)

  • Turbidity

  • Total Algae – Phycocyanin

  • Total Algae – Phycoerythrin

  • pH

  • ORP / Redox

  • Conductivity

  • Ammonium / Ammonia

  • Chloride

  • Nitrate

  • Temperature

  • Depth

  • GPS Coordinates

  • Barometric Pressure

The DSS also calculates a variety of derived parameters, such as:

  • Specific Conductance

  • Salinity

  • Total Dissolved Solids (TDS)

  • Resistivity

  • Seawater Density

  • Total Suspended Solids (TSS)

Selected sensors are EPA-approved for drinking water and wastewater compliance reporting.

Important: For accurate temperature compensation and conductivity measurements, it is recommended that a Conductivity/Temperature Sensor is installed in every ProDSS 4-port cable assembly.

Key Features & Benefits

  • Single-cable design with lengths up to 100 metres

  • User-replaceable cables with universal sensor ports

  • Durable, titanium-welded replaceable smart sensors

  • Rechargeable lithium-ion battery

  • Full-colour display with backlit keypad for easy field operation

  • Large onboard memory storing over 100,000 data sets

  • Extensive site list and Data ID tagging capabilities

  • Compatible with Kor Software for data management and analysis

  • Waterproof, rubber over-moulded casing (IP-67 rated)

  • Military-spec cable connectors for enhanced durability

  • Optional depth sensor and GPS functionality

  • Multi-language support

  • 3-year instrument warranty, 2-year cable warranty (sensor warranties vary)

Additional Cable & Probe Options

ODO/CT Probe and Cable Assembly
Provides highly accurate dissolved oxygen measurements using an optical DO sensor with inline conductivity for real-time salinity compensation.

ProODO Sensor and Cable Assembly
A dedicated optical dissolved oxygen probe and cable assembly for DO-only applications. For a standalone DO handheld meter, consider the ProSolo.

ProOBOD Optical BOD Probe
An EPA-approved solution for wastewater compliance reporting of BOD and CBOD. Designed specifically for laboratory use, featuring a self-stirring probe for consistent results.

Looking for a lighter, app-based alternative to the ProDSS handheld? The ProDSS KorLink from YSI delivers the same trusted performance through the Kor Mobile App for flexible, on-demand water quality monitoring.

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