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Red Sea High Accuracy Seawater Refractometer

Red Sea High Accuracy Seawater Refractometer


SKU: RS12018
by Red Sea
$110.99 CAD
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High Accuracy Seawater Refractometer! EASIER TO READ 0 to 40ppt

 Red Sea’s Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater at a temperature of 25°C/77°F.

 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 15°C/59°F rather than 25°C/77°F. Thus, a measurement deviation of up to 1.5ppt is possible, which can have a significant adverse effect on coral growth and coloration.

Main features of Red Sea’s Seawater Refractometer include: •Directly reads the absolute salinity of seawater at 25°C/77°F ( No need for seawater or temperature compensation factors)
 

  • Specifically designed for the ionic content of seawater (NSW) for more accurate salinity measurement (industry standard refractometers are calibrated for salt brine ).
     
  • Calibrated for seawater (NSW) at 25°C/77°F, the normal temperature range for reef aquariums (most standard refractometers are calibrated at 15°C/59°F ).
     
  • Easier to read, higher resolution display, focussed to the relevant range for reef aquariums of up to 40pp
     
  • Includes Integrated Automatic Temperature Compensation (ATC) for accurate measurement at standard ambient temperature.
    Red Sea’s Refractometer display

     The PPT scale on Red Sea’s Seawater refractometer is calculated using an algorithm for seawater and therefore will give a reading of the Absolute Salinity of seawater.

 The PPT scale on regular salinity refractometers are calculated using an algorithm for Brine. Using a Brine refractometer for Seawater will give an error of approximately 1.5ppt in the salinity reading.

Availability: Translation missing: en.general.icons.icon_check_circle icon 3 in stock, ready to be shipped

Customer Reviews

Based on 5 reviews
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Nico Bosma
Red Sea High Accuracy Seawater Refractometer

I bought this almost 3 years ago. I thought spending the extra money on a well-known brand like Red Sea was worth it. I was very wrong. I would strongly recommend people to look elsewhere for a refractometer. I am very much worried that in the last years my salinity has been all over the place thanks to this piece of equipment. You will find very mixed reviews on this refractometer on the reefing forums, which is another good warning.

D
Dmytro Svirid
Red Sea High Accuracy Seawater Refractometer

Garbage, the calibration screw rusted in 6 month of usage, even it never been wet. Moisture in the air, maybe but still... will not buy again, try ATC @ Dmytro Svirid, we have sold 100's of these and this is the first time we hear of such an issue. I suggest that you email us, we will send a warranty request to red Sea.

j
justin thibodeau
Red Sea High Accuracy Seawater Refractometer

The rubber eye piece on my refractometer was warped making it difficult to prevent external light from entering the viewing area. As a side note, the refractometer is much heavier on the prism side so use caution when handling for the first time so you don't drop it.

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Tim Fitzpatrick
Red Sea High Accuracy Seawater Refractometer

Love it! Finally a unit that I can see the answer in the viewing window BRIGHTLY and CLEARLY...better then the others I used through the years!

A
Adam BAXTER
Red Sea High Accuracy Seawater Refractometer

Great refractometer. Super accurate. I took a sample to my local fish store to test the salinity of my water. The salinity tested exactly as my refractometer did. Great product by Red Sea.