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Fish & Aquatic Pets/

Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation

  • Measure salt water or salinity of water, ideal for aquariums and marine monitoring.
  • Measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand.
  • Features automatic temperature compensation.
  • Comes with hard case, dropper, screwdriver, user manual and cleaning cloth.
  • The main part is made of chromium, it’s very durable.

We have been developing and selling this series of instruments for about 10 years, with a very professional team and factory. We’ve been concentrating to supply constant stable high standard products to customers all over the world.

Our products are equipped with high-quality optics and smooth focusing. The main body is made of aluminum alloy. The internal optical lens with high refractive index make up the precision optical system.The instrument is resistant to abrasion and corrosion, can be used to measure the salinity of general corrosive liquid. (But we do not recommend measuring these liquids for a long time. The residue should be cleaned immediately after measurement.

Dual Scale

Specific Gravity and PPT. With this refractometer you can get the result in two different units at the same time in just one test.

ATC Function

This refractometer is equipped with automatic temperature compensation function, minimize the impact of temperature on accuracy.


Comes with every thing you need: a hard case, droppers, a screwdriver, a user manual and a cleaning cloth.

The Scale Range

Dual Scale

The scale range of this refractometer is 0~100‰ ( 1‰=1 PPT=1000PPM, PPT means”parts per thousand”, PPM means”parts per million”), it also shows the corresponding specific gravity range 1.000 to 1.070. These are the most common units to show salinity of water. With this refractometer you can get the result in two different ways at the same time in just one test.

The min reading resolution is 1 ‰, this make it possible to mearsure low concentrated salt solutions.

For Marine Monitoring

For most sea, the salinty is between 30‰~35‰. So this refractometer is ideal for simple marine monitoring and research.

For Aquariums Water Monitoring

Ideal for aquariums or marine fishkeeping amateurs, cause they just need to make the salinity of water similar to the sea water.

For Swimming Pool Water Measuring

If you use a salt chlorine machine to disinfect your pool, you should make sure the salinity right first, normally the salinity should be between 3‰~7‰, this refractometer can help.

For Lab or Indurstry Purposes

Ideal for lab and indurstry use for testing salinity solution in the range of 0~100‰.



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