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Refractometers

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  • On Sale 15%
    HI98319 Salinity & Temperature Tester - Hanna
    On Sale 15%

    HI98319 Salinity & Temperature Tester - Hanna

    Hanna Instruments

    $79.99
    $67.99
    We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and...
  • On Sale 15%
    Salinity Refractometer - Generic
    On Sale 15%

    Salinity Refractometer - Generic

    All Misc Brands

    $29.95
    $25.46
    It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentration (part per Thousand)...
  • On Sale 15%
    Digital Seawater Refractometer MA887 - Milwaukee
    On Sale 15%

    Digital Seawater Refractometer MA887 - Milwaukee

    Milwaukee Instruments

    $114.00
    $96.90
    This refractometer does not come with a case or battery. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation. Each...
  • On Sale 15%
    Digital Seawater Refractometer MA887 w/Protective Case - Milwaukee
    On Sale 15%

    Digital Seawater Refractometer MA887 w/Protective Case - Milwaukee

    Milwaukee Instruments

    $136.00
    $115.60
    This refractometer does come with a black or blue protective case. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation...
  • Apex PM2 - Salinity, Temperature, I/O Expansion Module - Neptune Systems

    Apex PM2 - Salinity, Temperature, I/O Expansion Module - Neptune Systems

    Neptune Systems

    $94.99
    Maintaining consistent salinity in your aquarium is key to the well being of every organism inside it. And, as busy as we sometimes are, we don’t even realize our parameters are out of whack until it’s too late. With this module, your Apex...
  • Seawater Refractometer - Red Sea

    Seawater Refractometer - Red Sea

    Red Sea

    $74.99
    Main features of Red Sea’s Seawater Refractometer include:Directly reads the absolutesalinity ofseawaterat25°C/77 0F ( No need for seawater or temperature compensation factors)Specifically designed for the ionic content of seawater (NSW) for...
  • On Sale 15%
    Refractometer Calibration Standard (60 ml) - Brightwell
    On Sale 15%

    Refractometer Calibration Standard (60 ml) - Brightwell

    Brightwell Aquatics

    $5.04
    $4.28
    Refractometer & Hydrometer Calibration Standard 1.0264 Specific Gravity 1.3394 Refractive Index 35 ppt Salinity 53 uS/cm at 25 deg c Overview Brightwell Aquatics Aquarium Reagents Refractometer & Hydrometer Calibration Standard is...
  • On Sale 15%
    AccuraSea Refractometer Calibration Solution (250 ml) - Two Little Fishies
    On Sale 15%

    AccuraSea Refractometer Calibration Solution (250 ml) - Two Little Fishies

    Two Little Fishies

    $11.99
    $10.19
    Do you think it’s important to maintain salinity precisely? We’re with you. That’s why we created AccuraSea Seawater Reference Solution, the only calibration solution of its kind made from real seawater. It’s pure natural sea...
  • On Sale 15%
    ATC Seawater Refractometer - DD Aquarium Solutions
    On Sale 15%

    ATC Seawater Refractometer - DD Aquarium Solutions

    All Misc Brands

    $54.99
    $46.74
    Almost all, if not all, of the refractometers currently available to the aquarium hobby are designed for measuring saltwater (sodium chloride or brine solution) and not true ‘seawater’. Although seawater is mostly sodium chloride it also...