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Salinity refractometer 0~100 PPT
Product Features
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.
Include
Comes with every thing you need: a hard case, droppers, a screwdriver, a user manual and a cleaning cloth.
Average Salinity of Sea Water
Research shows that the average salinity of sea water is about 35‰, of course there are differences between each sea, for example the salinity of Dead Sea is as high as 227‰~281‰, and the salinty of Baltic Sea is as low as 10‰, but for most sea, the salinty is between 30‰~35‰.
So the scale range of this refractometer is perfect for measuring sea water or approximate salinity solution.
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.
Intended Uses
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‰.
Digital refractometer, Hydrometers or this kind of Optical Refractometer?
Digital refractometer: Normally it's very expensive, but the accuracy is not much better.
Traditional hydrometers: More complex to use and the result is not very accurate.
This kind of Optical Refractometer: Easy to use, not expensive and good accuarcy.
Is it complex to use a refractometer?
It's easy to use.
- Calibration: Place a few drops of distilled water on the prism and use the screwdriver to adjust the calibration screw untill the reading is"0".
- Measuring: Place a few drops of solutions you want to test on the prism and look into the eye piece, you will get the reading.
Note: The user manual will show you the details about how to use the instrument exactly, it very easy to use even for new users.
- Easy to use.
- Need no battery.
Pinkopz
2025-08-24 13:29:41
Works exactly as described and good price. I also bought BRS calibration solution and this refractometer was right on 1.026 without any adjustments. Perfect
Keith Lloyd
2025-08-16 12:33:23
Accurate and easy to read.
Michel
2025-07-11 13:12:02
Very impressive with this ðŸ‘
SteveD
2025-07-04 12:36:33
The results are accurate and easy to read. Make sure to purchase calibration solution for the best results. This keeps my water salinity right where I need it to be.
WThesing
2025-06-20 17:08:44
I received this refractometer next day. Opened it up, focused, and then calibrated with distilled water. Factory calibration was off a bit, and could have been temperature related. I had just finished setting up my phytoplankton reactor, awaiting this delivery, and arrival of the phytoplankton in todays mail.I must say this tool is way easier, and more accurate than using my hydrometer. I believe it will last a long time.I will be mindful of checking calibration whenever precision accuracy is needed.
Big G
2025-06-06 11:14:19
My old refractometer was looking pretty worn and getting loose.This new one, looks identical to my old one.Very accurate with reproducible results.Buy this one with confidence.But still get yourself a fresh bottle of calibration fluid to keep things honest.
Teea
2025-05-31 12:55:11
So easy to use
Connor
2025-05-02 21:10:26
Great product for the price, does what it’s designed for! Would definitely get this over a cheap digital tester.
Mathieu Beautru
2025-04-27 10:44:42
Reading completely inaccurate, how can I return this item?
Lopster
2025-02-14 11:38:42
It's just very nice good price love the quality.Not much else to say it does it's job.
Ashley Preston
2025-01-18 14:13:15
Great tool to have with your saltwater set up, works wonderfully! Exactly as expected
SC
2025-01-04 18:32:11
Way better than hydrometer. Get some calibration fluid and check it at least every few weeks (or if you get a weird reading). Once calibrated back (takes a few seconds) - it's good again. Calibration helped me from not adjusting my salinity when it wasn't necessary. For the price - great tool.
Chelsea
2024-12-20 16:10:12
I was skeptical for the price, but it’s very accurate and it’s literally the same one that the local store sells for $90. Excellent option for my saltwater tank. 10/10 would recommend
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