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The YSI ProDSS is a portable water quality multiparameter instrument for the measurement of several critical parameters.

Designed for use in applications such as surface water, groundwater, coastal/estuarine, and aquaculture, the rugged and reliable ProDSS allows for the measurement of water quality parameters with digital sensors. The ProDSS uses smart, user-replaceable sensor technology that can be connected to any port and automatically recognized by the handheld while retaining the calibration data.

An easy-to-read backlit color display, large memory capacity, simple calibration procedures, rechargeable battery, and powerful data management program all help to make your sampling experience more convenient.

  • pH & ORP
  • Conductivity
  • Dissolved Oxygen
  • Temperature
  • Turbidity


  • Rugged & easy to use handset
  • Large memory (> 100,000 data sets) with extensive site list and Data ID tag capabilities
  • Color display and backlit keypad allow for sampling in all lighting conditions
  • Battery life = 40 hours with internal lithium


 YSI ProDSS General Information 

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YSI 556 Hach Turbidity Meter

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