Rank Product Name Score
1 Salinity Refractometer for Aquarium, Marine Monitoring, Saltwater Testing, Dual Scale Salinity Tester 0-100 PPT& 1.000-1.070 Specific Gravity Saline Seawater Refractometer Hydrometer with ATC Salinity Refractometer for Aquarium, Marine Monitoring, Saltwater Testing, Dual Scale Salinity Tester 0-100 PPT& 1.000-1.070 Specific Gravity Saline Seawater Refractometer Hydrometer with ATC
Hallocool
9.5 GET ON AMAZON
2 Aquarium Salinity Refractometer with ATC Function,Saltwater Test Kit for Seawater, Pool, Aquarium, Fish Tank.Dual Scale: Specific Gravity & Salt Percent Aquarium Salinity Refractometer with ATC Function,Saltwater Test Kit for Seawater, Pool, Aquarium, Fish Tank.Dual Scale: Specific Gravity & Salt Percent
Xindacheng
9.2 GET ON AMAZON
3 Fritz Aquatics 35ppt (1.026sg) Refractometer Calibration Solution 2 oz - Fritz Fritz Aquatics 35ppt (1.026sg) Refractometer Calibration Solution 2 oz – Fritz
Fritz
9.2 GET ON AMAZON
4 AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Hydrometer Specific Gravity Salinity Meter Kit AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Hydrometer Specific Gravity Salinity Meter Kit
AUTOUTLET
9.2 GET ON AMAZON
5 Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function
RZ
9.1 GET ON AMAZON
6 JOR Refractometer, Dual-Range Scale Device to Measure Salinity and Specific Gravity of Saltwater Aquarium and Reef Tank, Provides Accurate Reading, No Batteries Required, 1 Set per Piece JOR Refractometer, Dual-Range Scale Device to Measure Salinity and Specific Gravity of Saltwater Aquarium and Reef Tank, Provides Accurate Reading, No Batteries Required, 1 Set per Piece
JOR
8.8 GET ON AMAZON
7 Professional Automatic Temperature Compensation Salinity Refractometer for Aquariums, Marine Monitoring, Saltwater Testing.Dual Sacle: 0-100ppt & 1.000-1.070 Specific Gravity Professional Automatic Temperature Compensation Salinity Refractometer for Aquariums, Marine Monitoring, Saltwater Testing.Dual Sacle: 0-100ppt & 1.000-1.070 Specific Gravity
Magnum Media
8.7 GET ON AMAZON
8 Milwaukee MA887 Digital Salinity Refractometer with Automatic Temperature Compensation, Yellow LED, 0 to 50 PSU, +/-2 PSU Accuracy, 1 PSU Resolution (color may vary) Milwaukee MA887 Digital Salinity Refractometer with Automatic Temperature Compensation, Yellow LED, 0 to 50 PSU, +/-2 PSU Accuracy, 1 PSU Resolution (color may vary)
Milwaukee Instruments
8.4 GET ON AMAZON
9 AccuBrate Refractometer Salinity Calibration Fluid – 60 ml Solution to Accurately Calibrate Refractometer for Testing Natural Saltwater or Synthetic Sea Water - Made in the USA (60 ml) AccuBrate Refractometer Salinity Calibration Fluid – 60 ml Solution to Accurately Calibrate Refractometer for Testing Natural Saltwater or Synthetic Sea Water – Made in the USA (60 ml)
Aquatic Experts
8.1 GET ON AMAZON
10 Salinity Refractometer for Seawater Aqaurium Fishkeeping Salinity Tester Meter Dual Scale-Specific Gravity Salinity Hydrometer 0-100PPT & 1.000-1.070 Salinity Refractometer for Seawater Aqaurium Fishkeeping Salinity Tester Meter Dual Scale-Specific Gravity Salinity Hydrometer 0-100PPT & 1.000-1.070
XRCLIF
8.1 GET ON AMAZON

Salinity Refractometer for Aquarium, Marine Monitoring, Saltwater Testing, Dual Scale Salinity Tester 0-100 PPT& 1.000-1.070 Specific Gravity Saline Seawater Refractometer Hydrometer with ATC

Salinity Refractometer for Aquarium, Marine Monitoring, Saltwater Testing, Dual Scale Salinity Tester 0-100 PPT& 1.000-1.070 Specific Gravity Saline Seawater Refractometer Hydrometer with ATC

    Features:

  • DUAL SCALES – Saltwater Refractometer measures on specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100‰, you can get the result in two different units by one test
  • WIDELY USE – The Refractometer designed for Aquariums, Marine Monitoring, Agricultural and Educational Purposes. Help you to control concentration of salt water easily
  • EASY TO USE – Put 2-3 drops of sample solution after calibration on prism, towards light, then get the accurate readings. Aquarium refractometer is ideal for replacement salinity hydrometers or expensive digital salinity tester
  • ATC FUNCTION – Aquarium hydrometer features Automatically Temperature Compensate function and always provide you accurate readings fast
  • 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

Aquarium Salinity Refractometer with ATC Function,Saltwater Test Kit for Seawater, Pool, Aquarium, Fish Tank.Dual Scale: Specific Gravity & Salt Percent

Aquarium Salinity Refractometer with ATC Function,Saltwater Test Kit for Seawater, Pool, Aquarium, Fish Tank.Dual Scale: Specific Gravity & Salt Percent

    Features:

  • 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 .

Fritz Aquatics 35ppt (1.026sg) Refractometer Calibration Solution 2 oz – Fritz

Fritz Aquatics 35ppt (1.026sg) Refractometer Calibration Solution 2 oz - Fritz

    Features:

  • 35 ppt or 1.0264 Specific Gravity
  • 1.3394 Refractive Index 53 uS/cm at 25 deg C

AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Hydrometer Specific Gravity Salinity Meter Kit

AUTOUTLET Refractometer Saltwater Aquarium for Seawater,Pool,Tank,Testing,Marine Fishkeeping, 0-100PPT & 1.000-1.070 Salinity Tester with ATC Function Hydrometer Specific Gravity Salinity Meter Kit

    Features:

  • 【AUTOUTLET Salinity Refractometer】This salinity tester is used to measure salinity of brine/seawater, monitor and control the concentration of saltwater. Ideal for aquariums and marine applications.
  • 【Measures on 2 Scales】This saltwater hydrometer measures on dual scales: specific gravity and salinity. Ideal for aquariums, marine monitoring, agriculture, gardening and educational purposes.
  • 【Measurement Range】Density of 1.0-1.070 with min scale of 0.001. Concentration of 0-100‰, with min scale of 1‰ (1‰=1PPT=1000PPM, PPT means “parts per thousand”, PPM means “parts per million”)
  • 【With ATC Function】ATC compensation Range (i.e. Built-in Automatic Temperature Compensation System) from 10℃ to 30℃.
  • 【Solid and Lightweight】Salinity meter is made of durable aluminum, which is non-staining, non-corrosive and rustless. Also, it’s compact in size with rubberized grip handle, very easy to carry.

Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function

Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity Salinity Meter Hydrometer 0-100ppt & 1.000-1.070, Saltwater Tester with ATC Function

    Features:

  • 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

JOR Refractometer, Dual-Range Scale Device to Measure Salinity and Specific Gravity of Saltwater Aquarium and Reef Tank, Provides Accurate Reading, No Batteries Required, 1 Set per Piece

JOR Refractometer, Dual-Range Scale Device to Measure Salinity and Specific Gravity of Saltwater Aquarium and Reef Tank, Provides Accurate Reading, No Batteries Required, 1 Set per Piece

    Features:

  • Dual-Range Scale Refractometer — A healthy saltwater aquarium requires a salinity balance or the salt concentration in aquarium water. Refractometer by JOR helps maintain this fundamental parameter in your saltwater aquarium or reef tank, measuring both salt percentage and specific gravity. This measuring tool has a scale range of 0 to 100%, where 1% means one part per thousand (PPT) or 1000 parts per million (PPM) and with a corresponding specific gravity range of 1.000 to 1.070.
  • Provides Accurate Measurement Reading — Forget guessing and estimating. This handy refractometer features automatic temperature compensation that gives precise, faster and easier readings.
  • Easy To Use — Place 2 to 3 drops of aquarium water on the glass, then close the plastic cover. Look through the eyepiece as you hold it under a light source. Check the reading. The blue line indicates the exact salinity level.
  • High Quality And Economical — This premium quality handheld refractometer has an aluminum alloy body, rubber grip, and adjustable focus. It doesn’t corrode, and since it is analog, it can also save you money because it doesn’t need batteries to operate, sparing you from buying replacements.
  • Complete Care Set — This portable measuring device comes with a hard case for proper storage. It also comes with a cloth so you can wipe the prism plate. The kit also includes essential tools during calibration and testing, such as a suction tube, screwdriver and a user’s manual.

Professional Automatic Temperature Compensation Salinity Refractometer for Aquariums, Marine Monitoring, Saltwater Testing.Dual Sacle: 0-100ppt & 1.000-1.070 Specific Gravity

Professional Automatic Temperature Compensation Salinity Refractometer for Aquariums, Marine Monitoring, Saltwater Testing.Dual Sacle: 0-100ppt & 1.000-1.070 Specific Gravity

    Features:

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

Milwaukee MA887 Digital Salinity Refractometer with Automatic Temperature Compensation, Yellow LED, 0 to 50 PSU, +/-2 PSU Accuracy, 1 PSU Resolution (color may vary)

Milwaukee MA887 Digital Salinity Refractometer with Automatic Temperature Compensation, Yellow LED, 0 to 50 PSU, +/-2 PSU Accuracy, 1 PSU Resolution (color may vary)

    Features:

  • Laboratory tested
  • Yellow led display

AccuBrate Refractometer Salinity Calibration Fluid – 60 ml Solution to Accurately Calibrate Refractometer for Testing Natural Saltwater or Synthetic Sea Water – Made in the USA (60 ml)

AccuBrate Refractometer Salinity Calibration Fluid – 60 ml Solution to Accurately Calibrate Refractometer for Testing Natural Saltwater or Synthetic Sea Water - Made in the USA (60 ml)

    Features:

  • REMARKABLE PERFORMANCE! Accubrate calibration solution is specifically formulated to calibrate refractometers to accurately measure the salinity of saltwater, reef aquariums as well as natural seawater.
  • ACCURATE RESULTS! Our calibration solution is formulated from a high purity blend of salts to produce accurate readings every time. Refractometers must be calibrated often to obtain accurate readings. Note: RO/DI water will not calibrate your refractometer correctly. Always use Accubrate to ensure correct salinity readings – your aquatic friends will love you.
  • EASY TO USE: Our specially designed bottle has a built-in dropper tip which eliminates the need for a pipette. Simply squeeze a few drops of Accubrate directly from the bottle onto the refractometer’s prism slide and you are ready to calibrate your instrument. (Drops come out at a very controllable rate.)
  • LONG-LASTING: You need just 2 to 3 drops of our calibration solution to calibrate a refractometer. Using a few drops means our 60 ml bottle should last a very long time. For best results calibrate refractometer often to ensure accurate readings.

Salinity Refractometer for Seawater Aqaurium Fishkeeping Salinity Tester Meter Dual Scale-Specific Gravity Salinity Hydrometer 0-100PPT & 1.000-1.070

Salinity Refractometer for Seawater Aqaurium Fishkeeping Salinity Tester Meter Dual Scale-Specific Gravity Salinity Hydrometer 0-100PPT & 1.000-1.070

    Features:

  • Dual Scale: this aquariums reqrium measures saltwater soultion and provides readings of 0-100PPT parts per thousand, Specific gravity 1.000 to 1.070SG, perfect for replace the salty hydrometer
  • Widely Use: Saline meter is ideal for aquarium marine fish-keeping, saltwater pool, agricultural, gardening and lab education purposes
  • Accurate Refractometer: Saltwater tester can automatically compensate temperatue when the ambient temp changes, which allows the refractometer measurement more accurate
  • Simple to Use: salinity refractometer is easy to operate only 2-3 drops of sample solution after calibration, you can get the accurate reading through eyepiece quickly
  • Durable & Portable: This saltwater meters are made of aluminum material, non-staining, anti-rusty and sturdy design, compact in size and lightweight, easy to operate and carry with

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