10 Best Salinity Refractometer of March 2024

List of Top Rated Salinity Refractometer from thousands of customer reviews & feedback.

Updated On Mar 2024

2,711 Reviews Studied

By Customer Ratings

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RZ Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrom... Read Review

  • Measures on 2 Scales: Aquariums refractometer features Specific Gravity (D 20/20) 1.000-1.070sg and parts per thousand 0-100PPT (1‰=1ppt=1000ppm)
  • Seawater refractometer measures saltwater or salinity of water, ideal for aquarium, marine monitoring, fish-keeping,salty pools&spas and etc.
  • ATC Function: salty water refractometer with automatic temperature compensation, allow you obtain accurate readings easier and faster
  • Salinity Refractometer is made of aluminum body and ABS rubber light and very sturdy, comes with a hard plastic case, a mini screwdriver, a dropper
  • Easy to Use: put 2-3 drops on the saltwater’s prism, towards light then to get the accurate readings through the optic eyepiece, ideal for replacement the poor quality and difficult to read hydrometer refractometer

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AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100PPT & 1.000-1.070 Sal... Read Review

  • 【Salinity Refractometer】Measure Salt Water or Salinity of Water,Monitor and Control the Concentration of Salt Water and Brine,Ideal for Aquariums and Marine Applications.
  • 【Measures on 2 Scales】Specific Gravity (D 20/20) and parts per thousand and replaces your poor quality and difficult to read hydrometer.
  • 【Density Measurement Range】1.0-1.070, Minimum Scale is 0.001.
  • 【Concentration Measurement Range】0-100‰, Minimum Scale is 1‰.
  • 【ATC】Automatic Temperature Compensation, 0-10°C.

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Professional Automatic Temperature Compensation Salinity Refractometer for Aquariums, Marine Monitoring, Saltwater Testi... Read Review

  • Upgraded Quality
  • Partable Hard Storage Box
  • Dual Salinity Scale
  • Automatic Temperature Compensation
  • Full 12 Month Replacement Warranty

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SunGrow Measure Salinity of Water with Aquarium Refractometer, Remarkable Accuracy, Includes Calibration Tool, Ensures O... Read Review

  • ✔ SPECIFICALLY DESIGNED REFRACTOMETER FOR SALTWATER AQUARIUM--The algorithm is made specifically for testing seawater and saltwater. This is different from a standard refractometer which is not calibrated to check salinity of aquarium water and will give an error in your readings.
  • ✔ AUTOMATIC TEMPERATURE CALIBRATION --- The calibration process should be carried out with both the room and the instrument at 68° F. The refractive index of a liquid changes with temperature. Due to the automatic temperature calibration, any changes in ambient temperature from 50° F- 86° F will not affect the accuracy of the reading.
  • ✔ EASY AND CLEAR READING FOR SALTWATER AQUARIUMS AND REEF TANKS--- The refractometer comes with a focus adjustment on the eyepiece, this will give you clarity of the optics and a sharp line for easy reading.
  • ✔ COMES IN A SOLID CASE INCLUDES PIPETTE AND CALIBRATION TOOL --- This refractometer is not only built extremely well, but it comes with a durable hard case for easy storage of the refractometer when not in use. It also includes a calibration tool and a pipette.
  • ✔ KEEP YOUR FISH AND PLANT LIFE IN OPTIMAL HEALTH--- Pure saltwater is crucial for the vitality of your marine or reef aquarium. Use this refractometer to measure the salinity of the water, the target level of salinity in a reef tank should be 35 ppt.

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Vee Gee Scientific STX-3 Handheld Refractometer, with Salinity Scale, 0-100, +/-1.0 Accuracy, 1.0 Resolution Read Review

  • Handheld portable refractometer for measurement of salt concentration in parts per thousand (PPT) (0 to 100%) and specific gravity (SG) (1.000 to 1.070) of seawater in the 10 to 30 degrees C temperature range
  • Automatic temperature compensation (ATC) for immediate and accurate calibration readings, regardless of ambient temperature
  • Ambient light illuminates the scale; no additional power source is required
  • Durable metal and rubber outer shell with a telescope-shaped, streamlined design (40 x 40 x 185mm), a rubber grip to guard against hand heat for accurate measurements, and a non-roll stand to protect against damage
  • Optical glass prism mounted in all-metal housing for quick temperature equilibrium between sample and prism

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Pinpoint Salinity Fluid for Refractometers and Salinity Monitors Read Review

  • Standardized fluid for calibrating Salinity Meters/Monitors as well as Refractometers
  • Calibrates to sg 1.026 or 35ppt
  • Conversion chart included

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Aquarium Salinity Refractometer with ATC Function,Saltwater Test Kit for Seawater, Pool, Aquarium, Fish Tank.Dual Scale:... Read Review

  • DESIGNED FOR - testing the concentration of saltwater, help you to monitor and control the concentration of salt water.
  • WIDELY USE - Can be used for Aquariums, Marine Monitoring, Agricultural, Gardening & Educational Purposes.
  • EASY , ACCURATE & AFFORDABLE - This refractometer is more accurate and easier to use than traditional hydrometers, more affordable than digital refractometers.
  • DUAL SCALE -- Provides reading of 0-100PPT(parts per thousand ) and corresponding specific gravity range 1.000 to 1.070. You can get the both result at just one test.
  • AUTOMATIC TEMPERTURE COMPENSATION --The build-in Automatic Temperature Compensation feature makes it get consistently accurate reading, no need to control the liquids temperature deliberately, just make sure it's at roomtemperature .

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Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT - Dual Scale (1.0 to 1.070 S.G.) - Automat... Read Review

  • Salt Salinity Refractometer With ATC - Dual Scale 0% - 10% & 1.0 to 1.070 S.G. Dual Scale Gravity Hydrometer. Designed for the safety transportation purpose, the very 1st open of the product case might be tight. Used for Seawater, Reef Aquarium, Kitchen use etc.
  • Reading Scale 0-100 ppt : Our optical refractometer has scales ranged from 0 - 100 ppt (0 - 10 %). The reading resolution is 1 ppt. It is designed for the measurement of seawater (marine aquaria) or very low concentrated salt solutions. The second scale is for reading of the salt solution density ranged from 1.000 to 1.070 g/cm3 (resolution 0.001 g/cm3). For Reference of solutions: 1.Fresh water < 0.5 ppt 2.Brackish water -- 0.5 to 30 ppt 3.Seawater -- 30 to 50 ppt 4.Brine -- 50 ppt
  • Measurement is easy: Place a few drops of the liquid on the optical part of the refractometer, cover the prism, and the liquid will spread more easily over the prism, look throught the eyepiece against the light and you will be able to read the result value on the scale. 10℃~30℃ / 50F ~ 86 F. For temperature beyond this range, please calibrate before use.
  • Includes: a firm plastic case, 1x refractometer ,1x cleaning cloth, 1x suction tube, 1x screw driver, 1x operating instructions
  • 1 Years Warranty by simply contacting us via Amazon purchase history

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Salinity Refractometer for Seawater Aquarium Marine Fishkeeping Salinity Meter with ATC, Dual Scale 0-100 PPT& 1.000-1.0... Read Review

  • DUAL SCALES - Saltwater Refractometer measures on specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100‰ (1‰=1ppt=1000ppm), allow you to get the result in two different units by one test
  • WIDELY APPIICATION - Seawaeter Refractometer designed for Aquariums, Marine Monitoring and measures salt water or salinty of water to help you to control concentration of salt water
  • EASY TO USE - Put 2-3 drops of sample solution after calibration on prism, towards light, then get the accurate readings. Hallocool aquarium refractometer is ideal for replacement salinity hydrometers or expensive digital salinity tester
  • ATC FUNCTION - Salt water refraactometer can automatically compensate for changes in the ambient temperature, minimize the impact of temperature on accuracy and allow you obtain results faster and easier
  • DURABLE & PORTABLE - Saline 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