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Best Refractometer For Saltwater Aquarium

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As a serious hobbyist the need for the best way to measure salinity and specific gravity is to use the best refractometer for saltwater aquarium to provide accurate measurement and specific gravity of aquarium water.

This instrument helps you to monitor the conditions of reef tanks and saltwater aquariums because clean and pure saltwater is crucial for the vitality of your marine or reef aquarium.

The feeling of awe that comes with having a device such as a refractometer for saltwater aquarium that helps the water in the aquarium tank stay clean, free from wastes, debris, and growths of algae is one of a kind.

You continue to have the feeling of safe living amongst your aquatic friends. This is why it is particularly imperative that you get the best aquarium refractometer for fish tanks.

The best aquarium refractometer is not just right for the support of life in the aquaria, but it will also help your aquatic friends attain fresh water that will let the animals live freely and live bigger.

However, being able to do this can sometimes feel like achieving a milestone. This is because it can be confusing to choose from the majority of brands of refractometer for saltwater aquarium that promises to offer the best services for your aquarium.

You need not to worry about knowing how to choose the best refractometer for saltwater aquarium, after going through this article you will be able to make the right choice for your aquarium tanks.

Criteria For Selecting The Best Refractometer For Aquarium

Quality of the product: When you are going to shop for your best programmable timer, it is very paramount that you have an idea about the type of quality you want.

This will make it easier for you to shop because you won’t have to shop everywhere for every product with vague qualities.

Accurate measurement: ensure that the one you buy has been bought by several customers and they can vouch for its accuracy in measuring salinity.

The prism and sample must be at the same temperature for accurate results.

Compatibility with your devices: Pay attention to the product you are buying to be sure it can work with all of your devices without having any glitch.

You want to be sure your money is well spent on the right product.

Product review: Read about the reviews of previous users on your potential product to have the perfect idea about the device before you go on to purchase it.

10 Best Refractometer For Aquarium

1) SunGrow Aquarium Refractometer, 7.6 Inches, Measure Salinity of Water, Remarkable Accuracy, Includes Calibration Tool, Ensures Overall Health of Plant and Marine Life, Easy and Clear Reading

 


This refractometer is the best way to measure salinity and specific gravity of aquarium water. This instrument helps you to monitor the conditions of reef tanks and saltwater aquariums.

Features & details
• SPECIFICALLY DESIGNED REFRACTOMETER FOR SALTWATER AQUARIUM–The algorithm is made specifically for testing seawater and saltwater.

This is different than 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.

•  KEEP YOUR FISH AND PLANT LIFE IN OPTIMAL HEALTH— Clean, 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.

2) Anpro Brix Refractometer for Homebrew, Beer Wort Refractometer Dual Scale Specific Gravity 1.000-1.120 and Automatic Temperature Compensation 0-32% Replaces Homebrew Hydrometer

This refractometer is for measuring the sugar content of aquarium and includes an automatic temperature compensation of 10 – 30 degree Celsius.

This refractometer can replace your hydrometer for easier and more accurate measurements. Simply use the dropper to take a sample of wort and put it on the prism. Then hold the refractometer up to the light and look through the eyepiece.

Due to the dual scale there is no need convert to specific gravity as the scale measures both Brix and SG.

Features & details
• Brix Refractometer Hand held refractometer with automatic temperature compensation -50°F ~86°F (10°C~30°C)
• Worth Refractometer: Portable sugar content tester, prefer replacement for hydrometer
• Dual Scale Suitable for homebrew, sugar measurement, specific gravity 1. 000-1. 120 and Brix 0-32%

• Easy use: After good calibration, place 2-3 drops of your brew on top of the prism. Close the daylight plate and take your reading

• Portable Refractometer: Sturdy design, compact in size and light in weight, convenient to keep up and carry around.

3) Honey Refractometer for Honey Moisture, Brix and Baume, 3-in-1 Uses, 58-90% Brix Scale Range Honey Moisture Tester, with ATC, Ideal for Honey, Maple Syrup, and Molasses, Bee Keeping Supplies


This refractometer is a portable, precision optical instrument.It’s a convenient tool to check quality of honey and other high sugar related liquids.Make you know ideal time for honey harvest or maple syrup production.

It features high-quality optics with ultra smooth focusing. Its main body is made of aluminum alloy. The internal optical lens with high refractive index make up the precision optical system. No battery needed.

It’s easy to calibrate and use the instrument: Place few drops of the liquid on the optical part of the refractometer, cover the prism , look throught the eyepiece against the light then you can the result value on the scale.

There will be an detail user manual shows you how to calibrate and use it exactly.

Features & details
• It’s designed for checking the quality of honey and other high sugar related liquids.
• 3-in-1 scale design makes you know three indexes at one time:honey moisture/ brix/ baume.
• Measuring Range: Water Content (Moisture) 12-27%, Brix 58-90%, Be’ (Baume) 38-43. Division: 0.5% Water, 0.5% Brix, 0.25 Be'(Baume) .
• Automatic Temperature Compensation makes it even easier to get fast results.
• Durable and Easy to Use & Carry — Ideal for bee-keeping, food industry, agricultural & educational purposes.

4) Beer Wort and Wine Refractometer, Dual Scale – Specific Gravity and Brix, replaces homebrew hydrometer

This dual scale brix refractometer is designed for monitoring brix and specific gravity at any point during the process of home brewing or wine making.

It measures on two scales – specific gravity and part per hundred of brix, making you get two readings at the same time in just one test. It is portable and needs no battery, it is easy to learn and use, easier and more accurate than a traditional hydrometers.

it is convenient for all people-children and adults, old and young, ideal for home brewing, wine making, agricultural, gardening & educational purposes.

It features high-quality optics with smooth focusing. Its main body is made of aluminum alloy.

The internal optical lens with high refractive index make up the precision optical system.The instrument is resistant to abrasion and corrosion, can be used to measure the brix of general corrosive liquid.

Features & details
• Agriculture Solutions LLC – Dual range refractometer measures the Brix and Specific Gravity of your Wort or wine.
• A refractometer is easier and more accurate than a hydrometer for measuring sugars.
• Features ATC (Automatic Temperature Compensation) for accurate readings.
• Measures Brix: 0-32% and Specific Gravity:1.000-1.120
• 1 Year warranty with Agriculture Solutions LLC

 

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

This product is equipped with high-quality optics and smooth focusing. The main body is made of aluminum alloy. The internal optical lens with high refractive index make up the precision optical system.

The instrument is resistant to abrasion and corrosion, can be used to measure the salinity of general corrosive liquid. But we do not recommend measuring these liquids for a long time. The residue should be cleaned immediately after measurement.

Features & details
• 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.

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

Magnum Media Salinity 10ATC is a professional brand of salinity measurement instrument. This refractometer is a portable, precision optical instrument.

It is designed for the measurement of seawater or very low concentrated salt solutions. It measures on two scales – specific gravity and parts per thousand, making you get two readings at the same time in just one test.

It is portable and needs no battery, it is easy to learn and use, easier and more accurate than a traditional hydrymeters.

It is convenient for all people-children and adults, old and young, ideal for aquariums, marine monitoring, agricultural, gardening & educational purposes.

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

This refractometer is a portable, precision optical instrument. It’s a convenient tool for the measurement of seawater (marine aquaria) or very low concentrated salt solutions. No battery needed.

It features high-quality optics with ultra smooth focusing. Its main body is made of aluminum alloy. The internal optical lens with high refractive index make up the precision optical system.

Features & details
• It is designed for the measurement of seawater (marine aquaria) or very low concentrated salt solutions.
• Ideal for testing and monitoring aquariums,fish tank, saltwater pool,seawater…
• Features automatic temperature compensation (ATC) and Dual Scale: Specific Gravity & Salt Percent.
• Easy to Use – Just need 2-3 drops of solution, you can get accurate readings. And no battery needed.
• Includes: a firm plastic case, a refractometer ,a cleaning cloth, a screw driver, an operating instructions, 3 suction tube.

8) AquaticHI Aquarium Refractometer for Saltwater/Brackish/Marine/Reef Tank Testing, Automatic Temperature Control, Salinity (0-100ppt) and Specific Gravity (1.000-1.070)


The AquaticHI Aquarium Refractometer is used to PROFESSIONALLY measure the salinity and specific gravity of saltwater. ADJUSTABLE FOCUS to provide the sharpest display.

Calibrate using distilled water or a solution with 35ppt. DUAL SCALE and full ATC (auto temperature compensation) to ensure greater CONSISTENCY and ACCURACY in everyday use. Compact and portable for use anywhere.

Features & details
• 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

9) PENSON & CO. Salinity Refractometer for Aquarium, Fish Tank Seawater ATC Hydrometer Dual Scale (1.0 to 1.070 S.G.)

This refractometer measures salt water or salinity of water, ideal for aquariums and marine monitoring.

It has automatic temperature compensation (ATC) ranging from 5 to 30 degree C.20/20 calibration at room temperature for more consistency and accuracy in everyday use.

10) RISEPRO Salinity Refractometer, Aquarium and Salty Sea Water Pool Dual Scale Hydrometer 0-100ppt & 1.000-1.070 Salinity Specific Gravity Marine Fishkeeping ATC RHS-10ATC

Features & details
• MONITOR SALINITY LEVEL – RISEPRO (R) Refractometer can measure the salinity of your salty solution. Perfect for salty water tank and aquarium, seafood water tank, salty pools & spas and etc.

• HIGH QUALITY CASING – This refractometer is made with sturdy and light weighted aluminum casing with high quality finish. Assure of long durability and heavy duty usages!

• EASY TO MEASURE WITH DUAL SCALES – All you need to do is place 2 – 3 drops of sample onto the prism, and then look through the eyepiece for both Salinity level in PPT and Specific Gravity in D 20/20.

• MEASUREMENT RANGE : Salinity 0 – 100 PPT with resolution 1PPT ; Specific Gravity (D 20/20) : 1.000 ~ 1.070 with resolution 0.001

• HIGHLY ACCURATE WITH ATC – The accuracy level is Salinity : +/- 1ppt (0.1%) and Specific Gravity : ±0.001. Automatic Temperature Compensation range is from10 °C to 30 °C.

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


The VEE GEE STX-3 is a handheld, portable, water-resistant salinity refractometer that measures salt concentration in parts per thousand (PPT) in the 0 to 100% range and specific gravity (SG) of seawater in the 1.000 to 1.070 range.

it has automatic temperature compensation (ATC), and a durable metal body with rubber grip.

A salinity refractometer measures the concentration of salt, such as sodium chloride, magnesium and calcium sulfates, in liquids and displays the results.

Handheld refractometers, also known as sugar meters, concentration meters, or Brix meters, are commonly used in the culinary, food and beverage, pharmaceutical, educational, geological, chemical, and ecological industries, and for water-testing applications.

Features & details
• 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

12) Red Sea Seawater Refractometer


Red Sea’s Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater at a temperature of 25oC/77 0F.

Most refractometers used within the aquarium hobby are not specifically designed for reef aquariums and use an algorithm for the measurement of brine (NaCl – rather than seawater) and at a temperature of 15oC/59 0F rather than 25oC/77 0F.

Thus, a measurement deviation of up to 1.5ppt is possible, which can have a significant adverse effect on coral growth and coloration.

Features & details
• 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 )

13) Aeroway Salinity Refractometer, Aquarium & Seawater – Dual Scale (1.0 to 1.070 S.G.)


Aeroway Salinity Refractometer, Aquarium & Seawater – Dual Scale salinity refractometer is used to measure, monitor and control the concentration of salt water and brine.

It is especially useful for aquariums and seawater applications. This high quality refractometer measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand.

14) Ade Advanced Optics Dual Scale 1.0 to 1.070 S.G. Salinity Refractometer for Aquarium & Seawater

This dual scale salinity refractometer is used to measure, monitor and control the concentration of salt water and brine. Especially useful for aquarium and marine applications.

This high quality refractometer measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand. It replaces your difficult to read hydrometer. With just a couple of drops of aquarium water you know exactly what your salinity is.

Features & details
• One scale checks the NaCl levels with the range of 0-100 ppt (with 1 ppt scale divisions) and the other scale gauges Specific Gravity with a range of 1.000 to 1.070(+/-0.001 accuracy)

• Features ATC (Automatic Temperature Compensation) for accurate readings.

• Sturdy design, compact in size and light in weight, convenient to keep up and carry around.

• It is suitable for a marine saltwater tank.

• This Refractometer is backed by a 2 Year – No Hassle – Free Replacement Guarantee.

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

Smarthsmith salinity Refractometer is good for testing salinity of seawater and marine fishkeeping aquarium. This optical refractometer (salinity meter) has scales in the range of 0 – 100 ppt(0 – 10 %).

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 in range 1.000 to 1.070 g/cm3 (resolution 0.001 g/cm3).

Features & details
• DUAL SCALE MEASURES SALT PERCENT AND SG: It is designed for the measurement of seawater (marine aquaria) or very low concentrated salt solutions.

• ENDLESS APPLICATION AND EASY TO USE,: Ideal for testing and monitoring aquariums,fish tank, saltwater pool,seawater.Just need 2-3 drops of solution, you can get accurate readings. No batteries needed.

• ATC TECHNOLOGY:Handheld Salinity Refractometerr with Automatic Temperature Compensation(ATC),no more worry about the temperature change will influence the reading accuracy.

• AIRCRAFT ALUMIUM BODY MATERIAL:The aquarium refractometer is made of non-staining, non-corrosive and non-reactive aluminum which is lightweight to carry,anti-scratch and durable.

Types of Refractometer

The different types of refractometers include handheld, benchtop, and in-process.

Handheld refractometers are elongated and telescope-shaped, or shorter and rectangular.

Analog handheld refractometer readings are obtained by looking through the monocular eyepiece and viewing where the boundary line intersects with the memory line.

Digital handheld models provide a digital readout.

Benchtop refractometers typically measure with a higher degree of accuracy than handheld units.

In-process refractometers are used for continuous process monitoring and data readouts, and are generally fitted into a piping system for ongoing analysis.

Refractometers are used in a wide variety of applications in the culinary, food and beverage, pharmaceutical, educational, geological, chemical, ecological, and automotive industries, and for water-testing applications.

Conclusion
The need to monitor the conditions of reef tanks and saltwater aquariums becomes of utmost importance because clean and pure saltwater is crucial for the vitality of your marine or reef aquarium.

This can be achieved with any of the above fifteen listed best refractometer for saltwater aquarium in the market.

You will find it conducive to go shopping for any of these products because they are the best and are highly reputable in the aquarium refractometer market.

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Click Here to Leave a Comment Below 2 comments
oprol evorter - October 13, 2019

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    jalowkicielne - November 13, 2019

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