Starting at $1,650.00

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  • Single cable design features universal ports which can accept any 4 sensors plus depth
  • Long-life rechargeable lithium-ion battery
  • Color display and backlit keypad
  • Digital smart sensors are automatically recognized by the instrument and store calibration data
  • User-replaceable cables and sensors provide versatility, reduce down time and reduce overall cost of ownership
  • Large memory (100,000+ data sets) with extensive site list and Data ID tag capabilities
  • Includes KorDSS, a powerful data management software with geo-mapping capability
  • USB On-The-Go connector for PC connection, recharging/powering the ProDSS and connecting directly to a USB stick
  • Optional global positioning system (GPS)
  • Cable lengths up to 100 meters available with or without a depth sensor
  • Rugged, waterproof case (IP-67 rated) with rubber over-mold and metal, military-spec cable connectors and rugged titanium sensors
  • Supports multiple languages

What's in the Box

  • Rechargeable lithium-ion battery (pre-installed)
  • Hand strap
  • USB cable
  • Universal AC charger
  • Cable for connection to a USB memory stick
  • Quick start guide
  • USB memory stick w/ KorDSS software & manual

The YSI ProDSS multiparameter meter is a portable digital sampling system for the measurement of up to 17 water quality parameters. Designed for use in applications such as surface water, groundwater, coastal waters, and aquaculture, the ProDSS is capable of measuring dissolved oxygen (optical), turbidity, pH, ORP, conductivity, specific conductance, salinity, TDS, resistivity, TSS, ammonium, ammonia, chloride, nitrate, depth, temperature and GPS coordinates.

The ProDSS is designed to be paired with a cable assembly and digital sensors. The cable assemblies are available in lengths from 1 to 100 meters and include ports for up to four sensors. The ProDSS uses smart, user-replaceable sensor technology that can be connected in any port and is automatically recognized by the handheld while retaining the calibration data.

The YSI ProDSS multiparameter meter includes an easy-to-read backlit color display, large memory, convenient calibration procedures, rechargeable battery, and powerful PC data management program (KorDSS) that makes the ProDSS user friendly. The optional GPS function, wide range of sensors, and varying cable lengths allow for complete customization of the ProDSS. Military spec connectors and a waterproof (IP-67), rubber over-molded case ensures durability to provide years of sampling even in the harshest field conditions.

Cable assemblies and digital sensors are not included and must be purchased separately.

Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

YSI ODO/CT Probe and Cable Assembly
Features integral optical dissolved oxygen, conductivity, and temperature sensors and is available in lengths up to 100 meters
YSI ProDSS Cable Assemblies
Cable assemblies with 4 universal sensor ports and optional depth sensor
YSI ProDSS Smart Sensors
Smart sensors for use with the YSI ProDSS multiparameter meter


YSI Calibration Solutions and Standards
Full range of calibration solutions and standards for YSI analytical meters
In Stock


YSI 603069 Belt Clip
Belt Clip for Pro Series
YSI 603070 Shoulder Strap
Shoulder strap for YSI Pro Series


YSI Soft Carrying Case
Organize any Pro Series meter and accessories while protecting them from the elements


Please consider these optional accessories.

YSI 063517 Ultra Clamp
Ultra Clamp for YSI Pro Series
YSI 063507 Tripod
Tripod, Ideal in the lab or any other level surface
YSI ODO/T Probe and Cable Assembly
Integral optical dissolved oxygen and temperature sensors, cable lengths available up to 100 meters
YSI 603056 Flow Cell Mounting Spike
Attaches to the base of the flow cell to stabilize it on the ground
YSI 626943 Li-Ion Rechargeable Battery Pack
For use with YSI ProSolo and ProDSS handhelds
YSI 626944 Li-Ion Rechargeable Battery Pack
For use with YSI ProSolo and ProDSS handhelds
YSI 626946 Hard-Sided Carrying Case
Large case fits 10-, 20-, and 30-meter cable with cable management kit, handheld, and accessories
YSI 626945 Hard-Sided Carrying Case
Small case fits 1- and 4-meter cables with handheld, flow cell, and accessories