Red Sea Seawater Refractometer 1Red Sea Seawater Refractometer 2
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Red Sea Seawater Refractometer

Brief Description: Red Sea’s Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater at a temperature of 25C/77F.
  • Product No. TERS-12018 - Ships in 2 to 7 days
Price: $79.99





Most refractometers used within the aquarium hobby are not specifically designed for reef aquariums and use an algorithm for the measurement of brine (NaCl – rather than seawater) and at a temperature of 15C/59F rather than 25C/77F. Thus, a measurement deviation of up to 1.5ppt is possible, which can have a significant adverse effect on coral growth and coloration.

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