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Water Quality

These water quality instruments can test for, measure, monitor and record a variety of parameters both in the lab and in the field. Choose from colorimeters, conductivity meters, dissolved oxygen meters, fluorometers, ISE meters, pH meters, refractometers, spectrophotometers, turbidity meters and more. For an extended deployment, a multi-parameter sonde with a choice of sensors will log an array of data.

Water Quality
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  1. YSI EXO Optical Dissolved Oxygen Sensor
    YSI EXO Optical Dissolved Oxygen Sensor
    Quote
  2. YSI EXO Total Algae Sensor
    YSI EXO Total Algae Sensor
    Quote
  3. YSI EXO Turbidity Sensor
    YSI EXO Turbidity Sensor
    Quote
  4. YSI EXO3 Multi-Parameter Water Quality Sonde
    YSI EXO3 Multi-Parameter Water Quality Sonde
    Quote
  5. YSI EXO Wiped Conductivity & Temperature Sensor
    YSI EXO Wiped Conductivity & Temperature Sensor
    Quote
  6. SonTek CastAway-CTD
    SonTek CastAway-CTD
    $6,365.00
  7. YSI EXO Central Wiper
    YSI EXO Central Wiper
    Quote
  8. YSI EXO2 Multi-Parameter Water Quality Sonde
    YSI EXO2 Multi-Parameter Water Quality Sonde
    Quote
  9. PME miniDOT Dissolved Oxygen Logger
    PME miniDOT Dissolved Oxygen Logger
    Check Price
  10. YSI 6150 ROX Dissolved Oxygen Sensor
    YSI 6150 ROX Dissolved Oxygen Sensor
    Quote
  11. YSI ProDSS Multi-Parameter Water Quality Meter
    YSI ProDSS Multi-Parameter Water Quality Meter
    $1,662.50
  12. YSI ProDSS Optical Dissolved Oxygen Sensor
    YSI ProDSS Optical Dissolved Oxygen Sensor
    $997.50
  13. YSI 6136 Turbidity Sensor
    YSI 6136 Turbidity Sensor
    Quote
  14. YSI EXO NitraLED UV Nitrate Sensor
    YSI EXO NitraLED UV Nitrate Sensor
    Quote
  15. YSI ProDSS Conductivity & Temperature Sensor
    YSI ProDSS Conductivity & Temperature Sensor
    $698.25
  16. YSI EXO Handheld Display
    YSI EXO Handheld Display
    Quote
  17. Solinst Levelogger 5 LTC Water Level & Conductivity Loggers
    Solinst Levelogger 5 LTC Water Level & Conductivity Loggers
    $1,328.10
  18. YSI EXO1 Multi-Parameter Water Quality Sonde
    YSI EXO1 Multi-Parameter Water Quality Sonde
    Quote
  19. YSI ProDSS Turbidity Sensor
    YSI ProDSS Turbidity Sensor
    $1,097.25
  20. Hach 2100Q Portable Turbidity Meter
    Hach 2100Q Portable Turbidity Meter
    $1,567.00
  21. NexSens TS210 Thermistor String
    NexSens TS210 Thermistor String
    Quote
  22. NexSens T-Node FR Thermistor String
    NexSens T-Node FR Thermistor String
    $345.00
  23. PME miniPAR Logger
    PME miniPAR Logger
    Check Price
  24. YSI EXO Optical Dissolved Oxygen Sensor Cap
    YSI EXO Optical Dissolved Oxygen Sensor Cap
    $200.00
  25. YSI 600OMS V2 Optical Monitoring Sonde
    YSI 600OMS V2 Optical Monitoring Sonde
    Quote
  26. YSI EXO Conductivity & Temperature Sensor
    YSI EXO Conductivity & Temperature Sensor
    Quote
  27. YSI 1001 pH (ISE) Sensor
    YSI 1001 pH (ISE) Sensor
    $183.54
  28. YSI EXO Unguarded pH Sensor Replacement Module
    YSI EXO Unguarded pH Sensor Replacement Module
    $180.00
  29. YSI EXO fDOM Sensor
    YSI EXO fDOM Sensor
    Quote
  30. Global Water WE700/WQ101 Temperature Sensor
    Global Water WE700/WQ101 Temperature Sensor
    $419.95
  31. YSI 6-Series Sonde Tune-Up Service
    YSI 6-Series Sonde Tune-Up Service
    $199.00
  32. Hach DR900 Multi-Parameter Handheld Colorimeter
    Hach DR900 Multi-Parameter Handheld Colorimeter
    $1,715.00
  33. YSI EXO Unguarded pH Sensor
    YSI EXO Unguarded pH Sensor
    Quote
  34. YSI EXO Sonde Tune-Up Service
    YSI EXO Sonde Tune-Up Service
    $199.00
  35. Van Essen CTD-Diver Water Level & Conductivity Loggers
    Van Essen CTD-Diver Water Level & Conductivity Loggers
    $1,795.00
  36. NexSens UW Cable Connectorization
    NexSens UW Cable Connectorization
    $195.00
  37. YSI ProDSS Total Algae Sensor
    YSI ProDSS Total Algae Sensor
    $3,192.00
  38. YSI 6560 Temperature/Conductivity Sensor
    YSI 6560 Temperature/Conductivity Sensor
    Quote
  39. YSI 6561 pH Sensor
    YSI 6561 pH Sensor
    Quote
  40. YSI 2003 Polarographic Dissolved Oxygen Sensor
    YSI 2003 Polarographic Dissolved Oxygen Sensor
    $193.52
  41. YSI ProDSS pH Sensor
    YSI ProDSS pH Sensor
    $448.88
  42. YSI Professional Series Meter Tune-Up Service
    YSI Professional Series Meter Tune-Up Service
    $149.00
  43. YSI 6589FR Fast Response pH Sensor
    YSI 6589 Fast-Response pH Sensor
    Quote
  44. YSI EXO Unguarded pH/ORP Sensor
    YSI EXO Unguarded pH/ORP Sensor
    Quote
  45. YSI ProDSS pH Sensor Replacement Module
    YSI ProDSS pH Sensor Replacement Module
    $175.56
  46. YSI EXO Unguarded pH/ORP Sensor Replacement Module
    YSI EXO Unguarded pH/ORP Sensor Replacement Module
    $265.00
  47. YSI 6025 Chlorophyll Sensor
    YSI 6025 Chlorophyll Sensor
    Quote
  48. YSI 6155 Optical DO Membrane Kit
    YSI 6155 Optical DO Membrane Kit
    $210.00

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  1. Accessories 264 items
  2. Anti-Fouling 56 items
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  7. Colorimeters 18 items
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  9. Conductivity Electrodes 57 items
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  12. Dissolved Gas Sensors 4 items
  13. Dissolved Oxygen Meters 72 items
  14. Dissolved Oxygen Sensors 45 items
  15. DO Membranes 34 items
  16. Economy Meters 49 items
  17. Electrode Fill Solutions 42 items
  18. Field Meters 36 items
  19. Flow Cells 25 items
  20. Fluorometers 46 items
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  22. Ion Selective Electrodes 102 items
  23. Ionic Strength Adjuster 26 items
  24. ISE Meters 38 items
  25. ISE Standards 101 items
  26. Microbiological Chemicals 64 items
  27. Multi-Parameter Sondes 22 items
  28. Nitrate Sensors 12 items
  29. ORP Electrodes 43 items
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  31. PAR Sensors 5 items
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  39. Spectrophotometers 4 items
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  43. Turbidity Meters 12 items
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