ProDSS Multiparameter Digital Water Quality Meter

Portable Multiparameter Sampling Handheld Instrument

YSI's ProDSS (Digital Sampling System) Multiparameter Handheld Meter provides flexibility and customization with a 4-port cable assembly outfitted with any four sensors, with or without depth.

Instrument Only.  Cables, sensors, and accessories are sold separately.

• Overview

  The ProDSS is a portable water quality instrument used for sampling applications in a variety of environments, such as surface water, wastewater, coastal/estuarine, aquaculture, groundwater, laboratory.

  Equipped with smart sensor technology, the ProDSS automatically recognizes sensors while retaining their calibration data. Its 4-port cable assembly allows you to choose any four sensors at a given time.

  ProDSS Parameter Options:

  • Optical Dissolved Oxygen
  • Turbidity
  • Total Algae – Phycocyanin
  • Total Algae – Phycoerythrin
  • pH
  • ORP / Redox
  • Conductivity

  ¹Derived parameter

  • Specific Conductance¹
  • Salinity¹
  • Total Dissolved Solids (TDS)¹
  • Resistivity¹
  • Seawater Density
  • Total Suspended Solids (TSS)
  • Depth

  ²Included in Handheld

  • GPS Coordinates²
  • Ammonium/Ammonia
  • Chloride
  • Nitrate
  • Temperature
  • Barometric Pressure²

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

  Note: It is recommended that a Conductivity/Temperature Sensor (626902) is installed in every ProDSS 4-port cable assembly for accurate temperature compensation and measurement. 

  Key Features

  • • Single cable design with lengths up to 100 meters
    • User-replaceable cables with universal sensor ports
    • Durable, titanium-welded, replaceable smart sensors
    • Rechargeable lithium-ion battery
    • Color display and backlit keypad
    • Large memory (> 100,000 data sets) with extensive site list and Data ID tag capabilities
    • Compatible with Kor Software (included) for data management and analysis
    • Waterproof rubber over-molded casing, IP-67 rated
    • Military-spec cable connectors
    • Optional depth sensor
    • Optional GPS
    • Multiple language offerings
    • 3-year instrument warranty; 2-year cable warranty; sensor warranty varies by sensor

  Additional Cable Offerings

  1. 1. ODO/CT Probe and Cable Assembly

        Provides accurate DO measurements with an optical dissolved oxygen sensor and an inline conductivity sensor, allowing for real-time salinity compensation.

     2. ProODO Sensor and Cable Assembly
        

        An optical dissolved oxygen probe assembly with cable for a DO-only instrument. Alternatively, if searching for a DO-only handheld instrument, explore the ProSolo. 

     3. ProOBOD Optical BOD Probe

        EPA-approve method for wastewater compliance reporting of BOD and CBOD. Designed for use in the lab, featuring a self-stirring probe.

  Looking for an alternative to the ProDSS Handheld? The ProDSS KorLink delivers the same trusted performance through the Kor Mobile App to provide on-demand, reliable water quality monitoring.

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  Add a ProDSS Factory Service Plan to your next instrument purchase, and know that your new instrument is covered. Use today’s budget to protect your investment for years to come!

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  Want to learn more about the ProDSS? Our online learning program – ProDSS On-Demand Training – is free to use and ensures all trainees are comfortable going in to the field with a ProDSS.

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  Kor makes it easy to manage ProDSS instrumentation and water quality data. Use the traditional Desktop Software or the Kor Mobile App to calibrate sensors, monitor live data, and ensure equipment is operating at peak performance!

• Specifications

  Benchtop	Yes, optical BOD probe for the lab is available
  Buffer Recognition	Yes, auto-buffer recognition for USA (4.00, 7.00, 10.00) and NIST (4.01, 6.86, 9.18) buffer sets. Calibration values are automatically compensated for temperature for both buffer sets.
  Certification	RoHS, UN Part III Section 38.3 test methods for lithium-ion batteries (class 9), WEEE, CE, FCC, 1-meter drop test, Assembled in USA, IP-67
  Connectivity / Communications	Built-in micro USB On-The-Go port for PC connection, recharging/powering the ProDSS and connecting directly to a USB stick
  Connector	MS (military spec) waterproof with quarter-turn bayonet lock (unsurpassed in regards to durability)
  Data Management	Kor desktop PC software (included), >100,000 data sets Kor Mobile App
  Desktop Software Compatible	Kor desktop PC software (included)
  Digital / Digital Sensors	Yes
  Flow Cell	Yes, flow cell is available
  GLP Compliance	detailed GLP information is stored and is available to view, download or print, Yes
  GPS	coordinates are stored with measurement data and site lists, Optional internal GPS
  Graphic Display	Color, LCD graphic display, backlit keypad
  Languages	Spanish, German, French, Norwegian, Italian, Japanese, English, Portuguese, Chinese (Simplified & Traditional)
  Logging Capabilities	Yes, Single point or Continuous
  Measurement Method / Channels	Digital
  Memory	>100,000 data sets, 400 GLP files
  Multiparameter	Yes
  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
  Power	Rechargeable lithium-ion battery pack providing ~48 hours of battery life (instrument only with backlight off)
  Sampling	Yes
  Security / Password Protection / UserID	Yes
  Size	Instrument: 8.3 cm width x 21.6 cm length x 5.6 cm depth (3.27 in x 8.5 in x 2.21 in) Bulkhead with sensors, without depth (no guard): 33.3 cm (13.11 in) length - the length with the ISE sensors is 34.04 cm (13.4 in) Bulkhead with sensors, with depth (no guard): 35.84 cm (14.11 in) length - the length with the ISE sensors is 36.58 cm (14.4 in) Bulkhead with guard, without depth: 42.82 cm (16.86 in) length and 4.75 cm (1.87 in) outer diameter Bulkhead with guard, with depth: 45.36 cm (17.86 in) length and 4.75 cm (1.87 in) outer diameter
  Smart Sensors / Ports	Yes, 4 universal sensor ports on each cable, can accept any ProDSS sensor
  Storage Temperature	0 to 45°C (32 to 113°F) with battery installed0 to 60°C (32 to 140°F) without battery installed
  User Calibratable	Yes
  User Replaceable	Yes
  Warranty	3-year instrument; 2-year bulkhead, cable assembly, and sensors; 1-year pH and pH/ORP sensor modules, ODO (opticalDO) sensor caps, and Li-Ion battery pack; 6-months ammonium, nitrate, and chloride sensor modules
  Waterproof	floats, IP-67 (even with the battery cover off)

  ProDSS System Specifications (Instrument, Cables & Sensors)

  Parameter (units)	Sensor Type	Range	Accuracy	Resolution	Calibration	Maximum Depth
  Dissolved Oxygen (% saturation)	Optical Luminescence - Lifetime Method	0 to 500%	0 to 200% (±1% of reading or 1% air saturation, whichever is greater) 200% to 500% (±8% of reading)	0.1% or 1% air saturation (user selectable)	1 or 2 points	100 m
  Dissolved Oxygen (mg/L, ppm) temp comp range -5 to 50°C	Optical Luminescence - Lifetime Method	0 to 50 mg/L	0 to 20 mg/L (±0.1 mg/L or 1% of reading, whichever is greater) 20 – 50 mg/L (±8% of reading)	0.1 or 0.01 mg/L (user selectable)	1 or 2 points (user selectable)	100 m
  Temperature (°C, °F, K)	Thermistor; Combination Sensor with Conductivity	-5 to 70°C (23 to 158°F)	±0.2°C	0.1°C or 0.1°F (user selectable)	None	100 m
  Turbidity (FNU, NTU)	Nephelometric - Optical, 90° Scatter	0 to 4000 FNU	0 to 999 (0.3 or ±2% of reading, whichever is greater) 1000 to 4000 (±5% of reading)	0.1 FNU	1, 2, or 3 points (user selectable)	-
  Conductivity* (µS, mS)	Four Nickel Electrode Cell	0-100 mS/cm	0 to 100 mS/cm (±0.5% of reading or 0.001 mS/cm, whichever is greater) 100 to 200 mS/cm (±1% of reading)	0.001, 0.01 or 0.1 mS/cm (range dependent)	1 point	100 m
  Specific Conductance (µS, mS)	Calculated from Conductivity and Temperature	0 to 200 mS/cm	±0.5% of reading or 0.001 mS/cm, whichever is greater	0.001, 0.01, 0.1 mS/cm	1 point	-
  Resistivity (ohm-cm, kohm-cm, Mohm-cm)	Calculated from Conductivity and Temperature	0 to 2 Mohms	±0.1% Full Scale	0.001, 0.01, 0.1 ohms	-	-
  Salinity (ppt, PSU)	Calculated from Conductivity and Temperature	0 to 70 ppt	±1.0% of reading or ±0.1 ppt, whichever is greater	0.01 ppt	1 point	-
  Water Density (Sigma, Sigma T)	Sigma is Calculated from Salinity, Temperature, and Pressure Sigma T is Calculated from Salinity and Temperature	0.0 to 50.0 sigma, sigma T	-	0.1 sigma or sigma T	-	-
  pH (mV, pH units)	Glass Bulb Combination Electrode; Ag/AgCl Reference Gel	0 to 14 units	±0.2 units	0.01 units	1, 2, or 3 points (user selectable)	100 m
  ORP (mV)	Platinum Button; Ag/AgCl Reference	--1999 to +1999 mV	±20 mV	0.1 mV	1 point	100 m
  Ammonium** (NH4-N mg/L, NH4-N mV) ammonia with pH sensor	Ion Selective Electrode	0 to 200 mg/L NH4-N	±10% of reading or 2 mg/L, whichever is greater	0.01 mg/L	1, 2, or 3 point (user selectable)	20 m
  Ammonia*** (NH3-N mg/L)	Calculated from Ammonium, Temperature, Salinity and pH	0 to 200 mg/L NH4-N	-	0.01 mg/L	-	-
  Nitrate** (NO3-N mg/L, NO3-N mV)	Ion Selective Electrode	0 to 200 mg/L NO3-N	±10% of reading or 2 mg/L, whichever is greater	0.01 mg/L	1, 2, or 3 point (user selectable)	20 m
  Chloride**	Ion Selective Electrode	0 to 1000 mg/L Cl	±15% of reading or 5 mg/L, whichever is greater	0.01 mg/L	1, 2, or 3 point (user selectable)	20 m
  Total Dissolved Solids (TDS) (mg/L, kg/L, g/L)	Calculated from Conductivity and Temperature	0 to 100 g/L	User-Selectable TDS Multiplier (0.30 to 1.00; 0.65 default)	0.001, 0.01, 0.1g/L	-	-
  Total Suspended Solids (TSS) (mg/L)	Correlated from Turbidity Field Measurements and Lab TSS Measurements from Grab Samples	0 to 30000 mg/L	Calculated from Turbidity and User-Entered Correlation Points	0.01, 0.1 mg/L	-	-
  Chlorophyll (RFU or µg/L chl)	Optical Luminescence	0 to 100 RFU or 0 to 400 µg/L chl	Linearity: r2 ≥ 0.999 for Rhodamine WT across full range	0.01 RFU or 0.01 µg/L chl	2 point	-
  Phycocyanin (RFU or µg/L PC)	Optical Luminescence	0 to 100 RFU or 0 to 100 µg/L PC	Linearity: r2 ≥ 0.999 for Rhodamine WT across full range	0.01 RFU or 0.01 µg/L PC	2 point	-
  Phycoerythrin (RFU or µg/L PE)	Optical Luminescence	0 to 100 RFU or 0 to 280 µg/L PE	Linearity: r2 ≥ 0.999 for Rhodamine WT across full range	0.01 RFU or 0.01 µg/L PE	2 point	-
  Depth (m, ft)	Pressure Transducer	0 to 100 m (0 to 328 ft)	±0.004 m (±0.013 ft) for 1, 4 and 10-m cables ±0.04 m (±0.13 ft) for cables 20-m and longer	0.001 m or 0.01 ft	1 point	-
  Barometer (mmHg, inHg, mbar, psi, kPa, ATM)	Piezoresistive	375 to 825 mmHg	±1.5 mmHg from 0 to 50°C	0.1 mmHg	1 point	-

  * Derived parameters can include resistivity, salinity, specific conductance, and total dissolved solids
  **ISE sensors for freshwater only; 20-meter maximum depth
  *** Ammonia calculated from ammonium, temp, salinity, and pH

• Accessories

  

  ProDSS KorLink

  Bluetooth Adapter

  

  ProDSS 4 port Cable Assembly, With Depth

  4 port ProDSS cable with depth sensor

  

  ProDSS 4 Port Cable Assembly, No Depth

  4 port ProDSS cable without depth sensor

  

  ProDIGITAL ODO/CT Cable Assembly

  Integral Optical DO and Conductivity Cable Assembly

  

  ProDSS ODO Optical Dissolved Oxygen Sensor

  ProDSS Optical Dissolved Oxygen Sensor

  

  ProDSS Turbidity Sensor

  ProDSS Turbidity Sensor

  

  ProDSS Conductivity and Temperature Sensor

  ProDSS Conductivity and Temperature Sensor

  

  ProDSS pH Sensor with Module

  ProDSS pH Sensor with Module

  

  ProDSS pH/ORP Sensor with Module

  ProDSS pH/ORP Sensor with Module

  

  ProDSS Total Algae PC Sensor

  ProDSS Total Algae PC Phycocyanin Freshwater Smart Sensor

  

  ProDSS Total Algae PE Sensor

  ProDSS Total Algae PE Phycoerythrin Saltwater Smart Sensor

  

  ProDSS Nitrate Sensor with Module

  ProDSS Nitrate Sensor with Module

  

  ProDSS Ammonium Sensor with Module

  ProDSS Ammonium Sensor with Module

  

  ProDSS Chloride Sensor with Module

  ProDSS Chloride Sensor with Module

  

  Maintenance Kit, ProDSS 4-Port Cable

  Maintenance Kit

  

  Conductivity Calibrator Solution

  Conductivity Calibrator Solution

  

  pH Buffer

  pH Buffer

  

  Zobell Solution, ORP Calibrator

  Zobell Solution, ORP Calibrator

  

  Turbidity Standard

  Turbidity Standard

  

  Ammonium Standard

  Ammonium Calibration Solution

  

  Nitrate Standard

  Nitrate Standard

  

  5580 Confidence Solution (case of 6 pints)

  5580 Confidence Solution (case of 6 pints)

  

  ProDSS Large, Hard Sided Carrying Case

  ProDSS Large, Hard Sided Carrying Case

  

  Pro Series Soft Sided Carrying Case

  Carrying Case, Soft Sided

  

  ProDSS Small, Hard-sided Carrying Case

  ProDSS Small, Hard-sided Carrying Case

  

  EXO1 and ProDSS Flow Cell

  

  Flow Cell Mounting Spike

  Flow Cell Mounting Spike

  

  Tripod Clamp

  Tripod Clamp

  

  Shoulder Strap

  Shoulder Strap

  

  EXO and ProDSS Replacement Battery Kit

  ProDSS Replacement Battery Kit

  

  ProDSS USB cable, 6 ft

  USB cable, 6 ft

  

  ProDSS USB cable, 6 in

  USB cable, 6 in

  

  EXO1 and ProDSS Calibration and Storage Cup

  Replacement Cup

  

  Cable Management Kit

  Cable Management Kit

  

  Weight, Probe/Cable, 4.9 oz

  Weight, Probe/Cable, 4.9 oz

  

  Replacement ProDSS ODO Sensor Cap

  Replacement ProDSS ODO Sensor Cap

  

  Replacement ProDSS pH Module

  Replacement ProDSS pH Module

  

  Replacement ProDSS pH/ORP Module

  Replacement ProDSS pH/ORP Module

  

  Replacement ProDSS Nitrate Module

  Replacement ProDSS Nitrate Module

  

  Replacement ProDSS Ammonium Module

  Replacement ProDSS Ammonium Module

  

  Replacement ProDSS Chloride Module

  Replacement ProDSS Chloride Module

• Software

  Kor Software - v1.5.0.223
  Sept 2025

  Kor Software is designed to interface with both EXO and ProDIGITAL (DSS) instruments, including the new ProSwap Logger. Use Kor Software to view live data, import/export recorded data, calibrate sensors, manage handheld settings, set up deployments, and more! This software is included on a USB flash drive that ships with all new instruments, and the latest version can be found here on the website.

  Use with the following instruments:

  • EXO Sondes
  • ProSwap Loggers
  • ProSwap Handhelds
  • ProSolo Handhelds
  • ProDSS Handhelds

  Functions:

  • Calibrate Sensors
  • View and Record Live Data
  • Download and View Recorded Data
  • Set Up Deployments
  • Configure Handheld Settings
  • Adjust Instrument and Sensor Settings

  What's New:

  Kor Software replaces both KorEXO and KorDSS as the primary user interface for managing EXO and ProDIGITAL (ProSwap, ProSolo, and ProDSS) instruments and data.

  Note: Be sure to update instrument firmware before attempting to download data.

  Software Change Notes [PDF]

  Download Kor Software

• What's Included
  1. Rechargeable lithium-ion battery (pre-installed)
  2. Hand strap
  3. USB cable (for charging and connection to a PC)
  4. Universal AC charger
  5. ProDSS quick start guide
  6. USB flash drive 
  7. Cable connection for USB flash drive 
• How to Order

  Step 1: Order Instrument

  SKU	Description
  626870-1	Instrument without GPS; includes rechargeable lithium-ion battery (pre-installed), hand strap, USB cable, universal AC adapter, micro USB to USB adapter cable, ProDSS quick start guide, and USB memory stick containing KorDSS software and digital copy of the entire manual
  626870-2	Instrument with GPS; includes rechargeable lithium-ion battery (pre-installed), hand strap, USB cable, universal AC adapter, micro USB to USB adapter cable, ProDSS quick start guide, and USB memory stick containing KorDSS software and digital copy of the entire manual

  Step 2: Order Cable(s)

  Cables do not include temperature sensor; all cables include 4 sensor ports and a maintenance kit (3 port plugs, tube of Krytox lubricant, brush for conductivity probe, syringe for depth sensor cleaning, and sensor installation/removal tool). All cables 10 meters and longer include a 1 lb weight. Cable lengths of 10 m, 20 m and 30 m include a cable management kit.

  SKU	Description
  626909-1, -4, -10, -20, -30, -40, -50, -60, -70, -80, -90 or -100 m	No depth sensor; Indicate cable length when ordering (Example: 626909-10 to indicate the 10-meter length)
  626910-1, -4, or -10 m	Depth sensor integrated; Indicate cable length when ordering (Example: 626910-4 to indicate the 4-meter length)
  626911-20, -30, -40, -50, -60, -70, -80, -90 or -100 m	Depth sensor integrated; Indicate cable length when ordering (Example: 626911-50 to indicate the 50-meter length)
  627150-1, -4, -10, -20, -30, -40, -50, -60, -70, -80, -90 or -100 m	ProDSS ODO/CT cable with integral optical DO, conductivity and temperature sensors
  626400	ProOBOD BOD probe/cable assembly, lab probe; U.S./Japanese version with power supply
  626401	ProOBOD BOD probe/cable assembly, lab probe; International version with power supply

  Step 3: Order Digital, Smart Sensors

  A conductivity/temperature sensor must be installed in a ProDSS cable for accurate measurement of all parameters.

  SKU	Description
  626900	Optical Dissolved Oxygen (ODO)
  626901	Turbidity
  626902	Combination Conductivity and Temperature sensor
  626903	pH with attached replaceable module
  626904	pH/ORP with attached replaceable module
  626905	Nitrate with attached replaceable module
  626906	Ammonium with attached replaceable module
  626907	Chloride with attached replaceable module
  626210	Total Algae PC Phycocyanin Freshwater
  626211	Total Algae PE Phycoerythrin Saltwater

  Step 4: Order Standards and Solutions

  SKU	Description
  065270	Conductivity calibrator, 1000 µmhos/cm (quart, glass); ideal for fresh water
  065272	Conductivity calibrator, 10000 µmhos/cm (quart, glass); ideal for brackish water
  065274	Conductivity calibrator, 100000 µmhos/cm (quart, glass); ideal for supersaturated sea water
  060907	Conductivity calibrator, 1000 µmhos/cm (8 each, pint, plastic); ideal for fresh water
  060906	Conductivity calibrator, 1413 µmhos/cm, ±1%, 0.01 M KCl (8 each, pint, plastic)
  060911	Conductivity calibrator, 10000 µmhos/cm (8 each, pint, plastic); ideal for brackish water
  060660	Conductivity calibrator, 50000 µmhos/cm (8 each, pint, plastic); ideal for sea water
  603824	pH buffers, 2 pints each of 4, 7, and 10 buffers (plastic)
  003821	pH buffer, 6 pints of 4 buffer (plastic); ideal for storage solution for pH sensor
  003822	pH buffer, 6 pints of 7 buffer (plastic)
  003823	pH buffer, 6 pints of 10 buffer (plastic)
  061320	ORP (mV) calibrator, Zobell solution, powder - needs hydrated (125 mL bottle)
  608000	Turbidity standard, 0 FNU (1 gallon, 3.78 l)
  607200	Turbidity standard, 12.4 FNU (1 gallon, 3.78 l)
  607300	Turbidity standard, 124 FNU (1 gallon, 3.78 l)
  607400	Turbidity standard, 1010 FNU (1 gallon, 3.78 l)
  003841	Ammonium standard, 1 mg/L (500 mL)
  003842	Ammonium standard, 10 mg/L (500 mL)
  003843	Ammonium standard, 100 mg/L (500 mL)
  003885	Nitrate standard, 1 mg/L (500 mL)
  003886	Nitrate standard, 10 mg/L (500 mL)
  003887	Nitrate standard, 100 mg/L (500 mL)
  005580	Confidence Solution to verify pH, ORP and conductivity data (not for calibration)
  400396	TruLine Chloride Low Standard
  400397	TruLine Chloride High Standard

  Step 5: Order Accessories

  SKU	Description
  626946	Large, hard sided carrying case
  603075	Large, soft-sided carrying case
  626945	Small, hard-sided carrying case (1- and 4-meter cables)
  599080	Flow cell
  603056	Flow cell mounting spike
  063507	Tripod (screws into back of meter)
  063517	Ultra clamp (screws into back of meter)
  603070	Shoulder strap
  626942	USB car charger
  626940	AC charger (USA). Includes power supply and USB cable. (included with ProDSS meter)
  626941	AC charge (international). Includes power supply, USB cable and outllet adapters. (included with ProDSS meter)
  626846	Replacement Lithium-ion battery pack
  626969	ProDSS USB flash drive (included with ProDSS meter)
  626991	Cable for charging and PC connection (included as part of 626940 and 626941 and included with ProDSS meter)
  626992	Cable for connection to USB drive (included with ProDSS meter)
  626990	Cable maintenance kit; 3 port plugs, 1 Krytox tube, 1 brush, 1 syringe, 1 sensor install/removal tool, 6 o-rings (included with all cables)
  626919	Probe guard kit
  599786	Calibration/storage cup
  603062	Cable management kit (included with any cable 10, 20, or 30-meters long)
  626918	1 lb weight (included with any cable 10-meters and longer)
  605978	4.9 oz weight
  626890	Replacement optical DO sensor cap
  626790	Replacement pH electrode module
  626791	Replacement pH/ORP electrode module
  626965	Replacement nitrate electrode module
  626966	Replacement ammonium electrode module
  626967	Replacement chloride electrode module

• Video

  ProDSS handheld multiparameter water quality system

  YSI ProDSS or EXO multiparameter water quality instruments

  Selecting your YSI Pro Series water quality system

• Application Notes
  • Groundwater Remediation Case Studies | A625
  • YSI ProDSS Utilized in Great Lakes Fisheries Management | A630
• Blog Posts
  • Cleaning your water quality field instruments
  • Storing for the season | Water quality field instruments
  • The True Cost of Data | What’s Below the Surface?
  • How to Select a Portable Dissolved Oxygen Meter | Top 5 Considerations
  • Long-term Continuous Monitoring of Zambezi River Demonstrates Massive Swings in Carbon Releases
  • YSI ProQuatro vs. ProDSS | Key Differences to Consider
• Brochures and Catalogs
  • ProDSS Factory Service Plan Brochure | W126
  • YSI ProDSS Catalog - Français | W86-02
• FAQs
  • FAQs Dissolved Oxygen Measurement
• Guides
  • YSI ProDSS Ordering Guide | W82
  • YSI ProDSS Calibration Worksheet | W87
  • YSI ProDSS Calibration Guide | W89
  • YSI Pro2030 and ProSolo ODO/CT Comparison Guide | W97
  • YSI ProDSS Quick Start Guide
• Manuals
  • 626973-01 | ProDIGITAL User Manual | English
  • 626973-03 | Manuel d'utilisation ProDIGITAL | Français
  • 626973-06 | ProDIGITAL Benutzerhandbuch | Deutsche
  • 626973-04 | Manuale d’uso ProDIGITAL | Italiano
  • 626973-07 | ProDIGITAL 取扱説明書 | 日本人
  • 626973-05 | Manual do Utilizador ProDIGITAL | Português
  • 626973-08 | ProDIGITAL 用户手册 | 中文 (Simplified)
  • 626973-02 | Manual de usuario de ProDIGITAL | Español
  • 626973-09 | ProDIGITAL 用戶手冊 | 中文 (Traditional)
• News Briefs
  • EPA Approved Methods Available with YSI Instrumentation | NB13
• Specification Sheets
  • YSI ProDSS Catalog | W86-05
• Technical Notes
  • Dissolved Oxygen Solubility Table | XA00055
  • Pro Series Firmware Change Notes
• Tips
  • Shipping Lithium Ion Batteries Product Notice