Best Refractometer For Saltwater Aquarium

Our Top 3 Picks

Today is the top-rated Best Refractometer For Saltwater Aquarium and we scoured online reviews for it. Clicking on the links will bring you to the products. All I had to do was rank them according to their popularity. We have put together a list of everything you need to know. Only the most successful ones have been chosen to do research in the future.

# Preview Product Rating
1 Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic... No ratings yet
2 RZ 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 Aquariums Salinity Refractometer for Seawater Marine Fish-Keeping, Dual Scales Specific Gravity... No ratings yet
3 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,... No ratings yet
4 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... No ratings yet
5 Seawater Salinity Refractometer,V-Resourcing Automatic Temperature Compensation Sea Water Salinity Measurer for Aquarium, Hydrometer, 0-100ppt & 1.000-1.070 Salinity Specific Gravity Seawater Salinity Refractometer,V-Resourcing Automatic Temperature Compensation Sea Water Salinity... No ratings yet
6 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... No ratings yet
7 Pen Type Salinity & Temperature Meter ATC NaCl Salt Water Quality Tester for Saltwater Aquarium Hydroponics Food Pen Type Salinity & Temperature Meter ATC NaCl Salt Water Quality Tester for Saltwater Aquarium... No ratings yet
8 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,... No ratings yet
9 AquaticHI Aquarium Refractometer w/LED for Saltwater/Brackish/Marine/Reef Tank Testing, Automatic Temperature Control, Salinity 0-100ppt & Specific Gravity 1.000-1.070 (Premium Kit w/LED) AquaticHI Aquarium Refractometer w/LED for Saltwater/Brackish/Marine/Reef Tank Testing, Automatic... No ratings yet
10 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... No ratings yet
11 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... No ratings yet
12 Aichose Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium, Saltwater Pool, with ATC Function, Dual Scale: Salinity 0-100‰ and Corresponding Specific Gravity Aichose Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium, Saltwater Pool, with... No ratings yet
13 SunGrow Measure Salinity of Water with Aquarium Refractometer, Remarkable Accuracy, Easy Reading SunGrow Measure Salinity of Water with Aquarium Refractometer, Remarkable Accuracy, Easy Reading No ratings yet
14 HOJILA Digital Salinity Refractometer Salinity Meter Tester for Aquariums & Saltwater, Range 0-28% HOJILA Digital Salinity Refractometer Salinity Meter Tester for Aquariums & Saltwater, Range 0-28% No ratings yet
15 Salinity Refractometer for Aquarium Dual Scale Salinity Tester 0-100‰ & 1.000-1.070 Specific Gravity Saltwater Tester Brine Refractometer Hydrometer with ATC Function Salinity Refractometer for Aquarium Dual Scale Salinity Tester 0-100‰ & 1.000-1.070 Specific... No ratings yet
16 SMARTSMITH Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation SMARTSMITH Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with...
17 Coralife Energy Savers ACLAF877 Deep Six Hydrometer Coralife Energy Savers ACLAF877 Deep Six Hydrometer No ratings yet
18 Vee Gee Scientific STX-3 Handheld Refractometer, with Salinity Scale, 0-100, +/-1.0 Accuracy, 1.0 Resolution Vee Gee Scientific STX-3 Handheld Refractometer, with Salinity Scale, 0-100, +/-1.0 Accuracy, 1.0... No ratings yet
19 Digital Salinity Tester for Salt Water - Waterproof IP67 Salinity Meter with ATC Large Range 0-200ppt Saltwater Tester for Seawater, Aquariums, Marine Monitoring, and Koi Fish Pond by ORAPXI Digital Salinity Tester for Salt Water - Waterproof IP67 Salinity Meter with ATC Large Range... No ratings yet
20 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... No ratings yet

It took us a long time to research the most relevant Refractometer For Saltwater Aquarium. After reading all of the resources, here are some of the top-rated products that you can learn more about, as well as where they are heading with their newest products in modern times. We were able to find the most reliable models on the market.

Best Refractometer For Saltwater Aquarium

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

$23.99
$19.88
 in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • 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.

RZ 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

$15.49  in stock
Amazon.com
as of June 4, 2022 5:48 pm

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

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

$17.99
$16.99
 in stock
Amazon.com
as of June 4, 2022 5:48 pm

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 .

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

$19.99
$15.99
 in stock
1 used from $15.19
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

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

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)

$10.99  in stock
Amazon.com
as of June 4, 2022 5:48 pm

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.

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

$22.00  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

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

SunGrow Measure Salinity of Water with Aquarium Refractometer, Remarkable Accuracy, Easy Reading

$13.70  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • 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.
  • 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.

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

$16.95
$15.95
 in stock
Amazon.com
as of June 4, 2022 5:48 pm

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.

Seawater Salinity Refractometer,V-Resourcing Automatic Temperature Compensation Sea Water Salinity Measurer for Aquarium, Hydrometer, 0-100ppt & 1.000-1.070 Salinity Specific Gravity

$15.89
$14.99
 in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Automatic Temperature Compensation: 10℃~30℃
  • Measuring range: salinity: 0-100 ‰, Specific Gravity : 1.000 to 1.070
  • Minimum scale: salinity: 1 ‰, Specific Gravity : 0.001
  • Resolution: salinity: ±1‰, Specific Gravity : 0.001 mm
  • Perfect for salty water tank and aquarium, seafood water tank, salty pools & spas and etc

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

$18.99  in stock
2 new from $18.99
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • 【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.

Aichose Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium, Saltwater Pool, with ATC Function, Dual Scale: Salinity 0-100‰ and Corresponding Specific Gravity

$19.99  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • It is designed for the measurement of seawater or low concentrated saltwater.
  • Dual scale: 0-100‰ salinity and corresponding specific gravity 1.000-1.070
  • Automatic temperature compensation function minimizes the effect of the temperature on testing result.
  • Easy to Use: It's very easy to use even for new users. And no battery needed.
  • Ideal for marine fishkeeping aquarium, saltwater pool, marine monitoring,lab,agricultural, gardening and educational purposes.

capetsma Salinity Tester, Accurate Sea Hydrometer Aquarium Marine Salinity Meter for Fish Tank Pond Water Saltwater Freshwater Specific Gravity Test

$11.99  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Safe Material & Unique Design: Made of durable Acrylic, this Fish Tank Test Kit salinity Hydrometer is designed with an automatic level function.
  • Quickly, easily, and accurately measurement: With this hydrometer saltwater aquarium test kit, you can test your marine aquarium's salt level and specific gravity, and It is optimum to be put into below 6" deep water to avoid the error caused by the oil film on the water.
  • Higher Accuracy & safe zone indicated: Readings are temperature-corrected & accurate to +/- 0. 001. specific gravity units ranges from 1. 000 - 1. 030 with a safe zone of 1.020-1.023. The outside range of scale indicates salinity ppt, ranges from 0-40, safe zone is 27-31.
  • Easy to Read & Clean: The easy-to-read swing-arm pointer and extra wide stable base provide an accurate test result. After use, soak this saltwater meter in mild acid(vinegar) for 30 minutes, rinse with tap water and air dry. Do not disassemble.
  • Wide Usage:Fit for brackish and reef salt marine aquariums. Perfect for testing both salinity and specific gravity of your brackish and marine tank.Includes salinity and specific gravity scales.Suitable for fresh water and sea water.

Salinity Refractometer for Aquarium Dual Scale Salinity Tester 0-100‰ & 1.000-1.070 Specific Gravity Saltwater Tester Brine Refractometer Hydrometer with ATC Function

$15.99  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • DUAL SCALE - Salinity Refractometer measures on 2 scales: Specific Gravity 1.000 to 1.070 (D 20/20) and 0-1000PPT, which allow to get the both results at just one testing
  • EASY TO USE - The aquarium refractometer need few sample, put 2-3 drops on prism and towards light source, you can get the the accurate readings quickly from eyepiece
  • WIDELY APPLICATION - Brine refractometer can be used for measuring salt water, salinity of water and seawater, ideal for monitoring aquariums, Marine Fishing Keeping, Agricultural, lab experiment and Educational purposes
  • ACCURATE & AFFORDABLE - Salt water refractometer features ATC (Automatic temperature compensation) function to ensure get consistently accurate reading. Easy to operate than traditional hydrometers and more affordable than digital refractometer
  • DURABLE & PORTABLE - Saline (brine) refractometer is made of aluminium and rubber, non-rust, anti-abrasion and durable for long time use. Comes with plastic storage box, small screwdriver and cleaning cloth, easy to organize and carry with

Refractometer Salinometer, Seawater Salinity Meter Aquarium Optics Refractometers Temperature ATC Digital 0-10% Aquarium Sea Water Pool Tank Brine Marine Fishkeeping Hydrometer Measurement Tool

$22.91  in stock
2 new from $22.91
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • [ MEASUREMENT RANGE ]: 0 to 10% salinity, 0.01% Study accuracy.
  • [ STRUCTURE & DESIGN ]: Copper construction, main prism + daylight plate + calibration screw + rubber grip + focus adjustment + eyepiece. You can adjust the prism when you can not see scale clearly. The Soft rubber eye piece makes you have a comfortable viewing.
  • [ EASY TO USE ]: Place 2 drops sample on the main Prism and close the panel and hold the refractometer up to the light and look through the eyepiece.
  • [ WIDE USAGE ]: the salinity refractometer can test the concentration of salt water, perfect for aquarium marine monitoring in scientific research and clinical laboratories.
  • [ FULL KIT ]: 1 x Storage Case with Inner Protective Tray, 1 x Salinity Refractometer, 1 x Mini Screwdriver, 1 x Cloth, 1 x Pipette, 1 x Instruction Manual.

AquaticHI Aquarium Refractometer w/LED for Saltwater/Brackish/Marine/Reef Tank Testing, Automatic Temperature Control, Salinity 0-100ppt & Specific Gravity 1.000-1.070 (Premium Kit w/LED)

$22.99  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • ⭐️ DUAL SCALE REFRACTOMETER: Measures in Salinity 0 - 100ppt and Specific Gravity 1.000 - 1.070
  • ⭐️ IDEAL APPLICATIONS: Aquariums, Marine Monitoring, Agricultural, Gardening & Educational Purposes (Biology Projects)
  • ⭐️ AUTOMATIC TEMPERATURE COMPENSATION (ATC): Automated to provide accurate measurements even with temperature fluctuations
  • ⭐️ AFFORDABLE high quality while providing ⭐️ PROFESSIONAL testing equipment standards, accurate even at low salt levels
  • ⭐️ PREMIUM PACKAGE INCLUDES: 1 Refractometer with LED (CR1220 3V battery included) installed on plate prism, 1 spare plate prism (without LED), 1 Hard Carrying Case, 1 Calibrating Screw Driver, 3 Pippet, 1 Cleaning Clothe, 1 Instruction Manual

Pen Type Salinity & Temperature Meter ATC NaCl Salt Water Quality Tester for Saltwater Aquarium Hydroponics Food

$35.99  in stock
2 new from $35.99
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • MEASURING RANGE: 0~9999 ppm or 10.0ppt~100.0ppt or 0.0%~10.0% or 0.950~1.080 (S.G.) based on NaCl with ±%F.S ±1 digit / ±0.5°C Accuracy
  • DISPLAY: Dual Temperature and Salinity in four measurement units (ppm, ppt, %, S.G) / 30 x 18mm LCD Size
  • APPLICATION: Salinity measurement in fish pond, tank, aquariums, laboratories, food processing, hydroponics, Aquaculture, and other water monitoring facilities.
  • FEATURES: Waterproof IP65 / One touch calibration / Auto power off and Non-Sleep mode disable / Multi points calibration
  • POWER SUPPLY / SENSOR : 4 x LR44 button batteries

Tri-Scale Refractometer ATC Brix 0-10%/ Salinity 0-100PPT/ Specific Gravity 1.000-1.070, for Saltwater Brackish Marine Reef Tank Salt Sea Water Hydroponic Aquarium Control Monitoring

$22.90  in stock
2 new from $22.90
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Salinity range is 0-100ppt ; Brix range is 0~10% ; 1.000~1.070g/cm3 Density / DIVISION: 0.2% salinity ; 0.2% Brix ; 0.001g/cm3 density
  • With Automatic Temperature Compensation (ATC) increase accuracy, easy to calibrate with mini screw driver included in the set
  • Measure salt water or salinity of water, ideal for aquariums and marine monitoring
  • Maintain proper concentration of your cutting and grinding fluids as well as check low concentrated salt and sugar solutions and food conten
  • Comes with protective case and made with highest and finest quality of aluminum & rubber

CORISRX BEST OF YOUR LIFESTYLE Dr. Marine Saltwater Marine Aquarium Salinity Portable Refractometer Meter ATC 0~10% Reef

$63.65  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • This latest salinity refractometer is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentration (Parts per Thousand) of salt in water.

Digital Salinity Tester for Salt Water - Waterproof IP67 Salinity Meter with ATC Large Range 0-200ppt Saltwater Tester for Seawater, Aquariums, Marine Monitoring, and Koi Fish Pond by ORAPXI

$49.99
$39.99
 in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Salinity Range: 0~9999ppm/10~200ppt or 0.0-25%, ORAPXI salinity tester has an automatic temperature compensation function(32°F~140°F), which can decrease the error caused by the change of liquid temperature.
  • Wide applications: There are various purposes for the salinity tester. This instrument can not only detect the salt content of edible salt, salt water pool and koi fish pond, but also the salinity of seawater, marine, salt water fish tank salt level testing.
  • Backlit design: There is no need to worry about seeing the displayed value if the light is insufficient. ORAPXI salinity meter features a green backlit LCD to help you see the measurement results clearly in any situation.
  • 4-in-1 salinity tester: The multi-parameter Tester can test Salinity, TDS, EC and Temperature in an accurate, quick and reliable manner for most regular water solutions' testing. Support One-tap switch from salinity to TDS/EC.
  • After-sales: 30-day free return/replacement and we promise respond your any questions about the product within 12 hours.

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

$6.79  in stock
4 new from $6.79
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

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

Coralife Energy Savers ACLAF877 Deep Six Hydrometer

$12.99  in stock
8 new from $12.99
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Coralife is one of the market’s leading manufacturers of premium aquarium products.
  • Coralife's Hydrometer takes a true water sample at six inch depth.
  • Easy to read and accurate this specific gravity meter is designed to give temperature-corrected readings in warm water aquariums.
  • Cora life is one of the markets leading manufacturers of premium aquarium products
  • Cora life's Hydrometer takes a true water sample at six inch depth

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

$114.00  in stock
11 new from $104.99
5 used from $85.94
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Laboratory tested
  • Yellow led display

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

$115.00  in stock
2 new from $115.00
4 used from $51.46
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • 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

Red Sea Seawater Refractometer

$59.99
$54.95
 in stock
3 new from $54.95
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Directly reads the absolute salinity of seawater at 25°c/77 0f  ( no need for seawater or temperature compensation factors)
  • Specifically designed for the ionic content of seawater (NSW)
  • Calibrated for seawater (NSW) at 25oc/77of (most standard refractometers are calibrated at 15oc/59of )

aichose Brix Refractometer with ATC, Dual Scale - Specific Gravity & Brix, Hydrometer in Wine Making and Beer Brewing, Homebrew Kit

$17.99  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • It's designed for testing the suger content and specific gravity of liquid.
  • Ideal for Home Brew, Wine making, Agricultural, Gardening & Educational Purposes.
  • Consistently accurate readings of 0-32% Brix and 1.000-1.120 Specific Gravity.
  • Automatic Temperature Compensation makes it even easier to get fast results.
  • Durable and Easy to Use & Carry -- The main part is made of chromium, it's light but durable.

Sybon Refractometer with Automatic Temperature Compensation

$52.55  in stock
3 new from $52.55
Amazon.com
as of June 4, 2022 5:48 pm

Features

Part Number4443

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

$15.89  in stock
Amazon.com
as of June 4, 2022 5:48 pm

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

KOOBOOK 1 Pcs Accurate Hydrometer Salinity Meter 1.000-1.027 Salinity Range 0-36 for Aquarium Fish Tank Marine Sea Saltwater

$8.99
$5.59
 in stock
2 new from $5.59
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Made of high quality plastic, Withstand voltage,high transparency.
  • Special for culture of marine fish, the specific gravity and salinity of seawater are displayed once, easy to use and easy to read.
  • Keeping your hands clean,go underwater 15 cm (6 inch) depth to avoid errors caused by inhalation of oil film on the top of water.
  • When the water reaches full state (with the top of the baffle level), filed a hydrometer, this product can be hand or hang in the cylinder, automatic level function, can automatically find out the level to avoid the error.
  • Proper salinity level is one of the most important factors in the health of the fish.Readable and accuracy can up to ± 0.002 gravity unit.

Hikari AccuProbe Aquarium Hydrometer, Full

$13.87  in stock
7 new from $13.79
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • "Dry Hands" design avoids contamination of aquarium or water sample
  • Accurate to 0.001 specific gravity and salinity (PPT) measurements
  • Auto-temperature correcting design
  • Designed to give a temperature-corrected reading in warm water aquariums – 68°F to 85°F (20°C to 30°C)
  • Self-leveling, hanging device included

Hanna Salinity Tester HI98319

$72.99  in stock
9 new from $72.99
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Waterproof and floats!
  • Includes 4x of the Salinity Calibration Fluid Packets.
  • Automatic Calibration – A 35.00 ppt solution is used for calibration and automatically recognized when in calibration mode.
  • Displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.)
  • Salinity readings are performed by an amperometric graphite probe that resists oxidation, providing better repeatability in measurements. The use of graphite also reduces the polarization effect common with testers that use two stainless steel pins.

Actopus Hydrometer Salinity Tester for Aquarium Sea Fish Tank Salt Water

 out of stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Quick measurement on salt level, specific gravity.
  • Rinse with fresh water after use
  • Specific gravity range 1.000 - 1.030
  • Salinity range 0-40

API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit

$47.39
$26.96
 in stock
14 new from $26.96
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Contains one (1) API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit, including 6 bottles of testing solution, 1 color card and 4 glass test tubes with cap
  • Helps prevent invisible water problems that can be harmful to fish and cause fish loss
  • Accurately monitors 4 most vital water parameters levels in saltwater aquariums: high range pH, ammonia, nitrite and nitrate
  • Designed for use in saltwater aquariums
  • Use for weekly monitoring and when water or fish problems appear

Rhino Salinity(0-100ppt & 1.000-1.070 Specific Gravity)Refractometer with Automatic Temperature Compensation for Seawater and Marine Fishkeeping Aquarium Teflon Coating

$28.90  in stock
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Rhino Salinity Refractometer HR201 can measure Salinity of 0~100‰ and Specific Gravity ( D20/20 ) between 1.000 - 1.070.
  • The surface of the refractometer is sprayed with Teflon,It has the characteristics of wear resistance, corrosion resistance, anti-static and anti-adhesion. When measuring corrosive solutions can better protect the instrument.
  • Rhino Salinity Refractometer can be used to measure the salinity of general solid liquids, especially suitable for aquariums、marine applications、marine monitoring、agricultural、gardening&educational purposes.
  • Automatic Temperature Compensation ( 50°F~86°F / 10°C~30°C ).
  • Rhino Salinity Refractometer comes with portable holster, water bottle, calibration mini-screwdriver, English instruction manual, cleaning cloth, plastic pipette and case.

Fdit 5 in 1Portable Salinity/Temperature/TDS/EC Digital Seawater Quality Tester for Pools, Aquariums & Saltwater

$24.39  in stock
2 new from $24.39
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • 【WIDE APPLICATION】Suitable for drinking water, swimming pool, aquarium, reverse osmosis system, spa or hydroponic.
  • 【EASY OPERATION】Wide application range, fast measurement and simple operation, reliable to use.
  • 【SENSITIVE ELECTRODE SENSOR】The water quality tester has a sensitive electrode sensor to read accurate values.
  • 【ACCURATE MEASUREMENT】High sensitivity probe for more accurate measurement, more practical to use.
  • 【PREMIUM MATERIAL】Adopting high quality ABS material, resistant to corrosion and durable in use.

Dual Scale Salinity Refractometer ATC 0-100ppt (0-10%) & 1.000-1.070 Specific Gravity, Portable Meter Tester for Seawater Salt Sea Water Aquarium Brackish Reef Tank Marine

$21.90  in stock
2 new from $21.90
Free shipping
Amazon.com
as of June 4, 2022 5:48 pm

Features

  • Range: 0-100ppt (0-10% Salinity) and Density/ Specific Gravity 1.000-1.070 1ppt Salinity and 0.001 g/cm3 Density Resolutions
  • Water or a salt (brine) refractometer preferred by aquarist, it checks saltwater & brine or salinity of water, best for aquariums and marine monitoring
  • True seawater or a salt (brine) refractometer preferred by aquarist
  • Calibrate simply by distilled water, comes with free screwdriver for calibration
  • Has automatic temperature compensation (ATC) and has built with the highest and finest quality of aluminum & rubbe

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