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Salinity Refractometer for Aquarium Seawater Marine Fishkeeping Dual Scale 0-100 PPT& 1.000-1.070 with ATC
The salinity refractometer is made of aluminum and ABS rubber, anti-rust, non-staining and resistant abrasion, sturdy for long time use. Portable refractometer with plastic case easy to carry
Seawater refractometers with premium optics and smooth focusing. The internal optical lens with high refractive index ensure the precision optical system so we can get the accuracy measured results and view the scale clearly.
The refractometer series are baseed on the princple that the refractive indices of liquids change when the concetration change, which allow you easy to do test without batteries requiered, more accuracy then traditional hydromometer and more affordable than a digital salinity meter
Product Features
ATC Function
Saltwater refractometer with ATC function, can automatic compensate for changes in ambient temperature, and minimize the impact of temperature on accuracy.
Clearly Eyepiece
This salinity meter features clearly lens and smooth adjustable focus, easy to read the clearly readings by manipulating the eyepiece
Adjustable Visual
This salinity tester features clearly lens and smooth focusing, which allow you see the clearly scales easily.
Average Salinity of Sea Water
Research data shows that the average salinity of sea water is about 35‰ and most sea water's salnitiy is bettwen 30‰~35‰. However, each seas has different salinity, such as the salinity of Dead Sea is high as 227‰~281‰, the salinity of the Red Sea reaches as high as 42.8‰ in some areas, but the Baltic Sea is as low as 10‰
- This salinity refractometer is great for measuring sea water or checking salinity solution concentration.
Dual Scale Aquarium Refractometer
The Scale Range
- Specific Gravity and PPT
With this salt refractometer, you can get the accurat results in two different units at the same time at just one test.
- The Scale Range
Saline Refractometer provides readings of 0-100‰ and corresponding specific gravity 1.000 to 1.070 . These are the most common units to show salinity of water.
1‰=1 PPT=1000PPM, PPT means"parts per thousand", PPM means"parts per million"
- The minimum scale reading resolution is 1 ‰, allows to measure low concentrated salt solutions.
- Accuracy: ±0.2%, automatic temperature compensation (ATC): 0-10°C Reference Temperature: 20°C
Wide Application
For Aquariums Water Monitoring
Perfect for aquariums or marine fishkeeping amateurs, cause they can make the salinity of water similar to the sea water and easy to monitoring daily.
For Marine Monitoring
Most sea water's salinity is about 30‰~35‰. So this Brine refractometer is ideal for simple marine monitoring, marine aquaculture and research.
For Fish Tank saltwater Measuring
Use this salinity refractometer to test the salt water of your fish tank at home. It also can be used to measure concentration of brine solution at food preparation.
For Lab Education or Indurstry Purposes
Ideal for lab use, lab educational tool in shoocl and industry use for testing salinity solution in the range of 0~100‰.
Easy to Use
- Calibration: Place 2-3 drops of distilled water or fresh water on the prism to check the scale ( when you see it at "0" level, it means refractometer already calibarated. If not, please use the screwdriver to calibarate it to "0")
- Measuring:
- Place a few drops of solutions you want to test on the prism
- Look into the eyepiece, and you will get the accurate reading quickly.
- No batteries required
- User manual is easy to read
- The manual has more details about how to use the instrument exactly, and also very easy to use for new users.
Why choose Optical Refractometer?
The Optical Refractometer is simple to use, reliable accuracy and not expensive.
- Digital refractometers are usually very expensive, but the accuracy is not much better.
- Traditional hydrometers are really complex to use and the results usually big deviation.
Accurate Refractometer
Affordable Salinity Meter
Package Inlcudes:
- a salinity refractometer
- a mini screwdriver
- a plastic pipette
- a manual
- a plastic storage box
- a cleaning cloth (random color)
- Please note: Ensure the refractometer clean and keep it at dry place
- Wipe the residual saltwater after use and keep the refractometer clean and neat after use
- If you meet any question about the saltwater refractometer when you received it and please don't hesitate to contact, we will solve your problem with 24 hours
Dakotah
2025-09-05 10:26:28
Works well and no defects
AlexSuperFire
2025-09-03 12:16:29
I trust this much more than I trust my TDS meter than has a salinity function. You have to calibrate it, but after calibration, it's dead on accurate. Any type of distilled water it hits exactly 0.
Customer
2025-08-19 18:46:05
Before I bought this, I had tried a mechanical salinity tester and an electronic one. They read significantly different PPT amounts for the same water sample. This was the tie breaker. It was much easier to use than I thought it would be, even though I have significant tannin in the water being tested. No problem. It was still very easy to read. It's well made and well packaged, too.
Customer
2025-07-24 17:31:36
The case was broken on arrival but refractometer easy to use and calibrate.
Preston
2025-07-18 16:34:51
Very easy to use and accurate, excellent price.
Lizzette Rivera
2025-06-15 12:46:51
Great buy
Brandon C.
2025-06-05 13:30:32
I imagine it’s hard to find a crappy one of these but some are way more expensive than others. Works exactly as my old 50 dollar one.
Jomama
2025-04-28 21:27:44
I have 2 of these and my old one never fluctuates, I also test calibration monthly with distilled water and only this one changes. I recently went to use this again and thought my salinity was really low and was worried but when I went to check calibration it was high. I double checked my other that's a year older and calibration is still perfect and my salinity is within spec. How can this show its low then when tested show high, it's complete junk and will kill coral and fish if u rely on it
Customer
2025-03-19 18:57:40
For our two reef tanks we rely on this for salinity accuracy and it hasn't let us down yet.
Luis Alberto
2025-01-20 15:28:56
Es buen dÃa quino cumple con el propósito
Talha Shafiq
2024-11-29 12:28:58
Very good refractometer for checking salinity you have to do calibration before use. Good seller responded me about my questions.
Chris
2024-11-22 12:56:28
It came defective.It also does not zero properly, it stays a few points higher than distilled waters base level.
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