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Testing Equipment
You are here:  Home » Aquarium Supplies » Testing Equipment »
Captive Purity
  • Much more accurate reading than a hydometer
  • Easily calibrated
  • Three models available
    Description
    The Captive Purity Refractometer is an incredibly accurate and easy to device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Reads in percent and specific gravity. An absolute must for the serious marine hobbyist.

    The Captive Purity Refractometer is an optical device (no batteries) dual scaled 0-100% specific gravity: 1.0 to 1.070. Calibrate with distilled water. Adjustable eyepiece, carrying case, pipette and calibration screw driver included. This model is ATC (automatic temperature compensating).
     
     
    Item #   Description  
    Price
     
    Quantity
     
    Stock Status
    006507   Refractometer
     
    $69.95
     
     
    In Stock
    006508   Refractometer with Calibration Dial
     
    $89.95
     
     
    In Stock
    006509   Refractometer with Internal Light
     
    $119.95
     
     
    In Stock
     
     
    * Due to availability and individuality of each species, colors and sizes may vary.
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