Are you trying to find optical refractometers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling optical refractometers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 27 hours of research and did 48 optical refractometers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best optical refractometers you can buy today
- RANGE: Serum protein: 0 ~ 12 g/100 ml ; Urine specific gravity: 1.000 ~ 1.050 ; Refractive index: 1.333 ~1.360 RI
- DIVISION: Serum protein: 0.2 g/100ml ; Urine specific gravity: 0.005 ; Refractive index: 0.0005 RI
- ACCURACY: Serum protein: ±0.2 g/100ml ; Urine specific gravity: ±0.005 ; Refractive index: ±0.0005 RI
- LIGHTWEIGHT, made with highest and finest quality of aluminum & rubber
- Features automatic temperature compensation (ATC) and comes with Portable USB LED Light
- 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
- It is portable and needs no battery, it is easy to learn and use even for new user.
- Automatic temperature compensation function minimizes the effect of the temperature on testing result.
- Ideal for testing and monitoring the sugar content in brewing or other food indurstry.
- Includes: a firm plastic case, a refractometer ,a cleaning cloth, a screw driver, an operating instructions, some pipettes.
- Get two results in one testing: the refractometer has the most common two scales for sugar content: 0-32% brix and corresponding 1.000-1.130 specific gravity.
- 🍷【Easy to Use】— Place 2 - 3 drops of liquid sample onto the prism of this hydrometer, then look through the eyepiece to get the reading directly. NO test jars needed, NO measuring or calculating work needed, operating easily brix refractometer, convenient to use and save your time.
- 🍷【Main Indicators】— High accurate wine refractometer: Brix 0-40% & Alcohol 0-25% Vol. The beer brewing kit is ideal for fruit, juice, home brew, agricultural, gardening & educational purposes, sugar content.
- 🍷【ATC Design】— The refractometer adopts automatic temperature compensation technology from 10℃ to 30℃ (50°F~86°F), reading directly, fast, accurate and light weight.
- 🍷【Packing List】— 1 x hydrometer refractometer; 1x calibration screwdriver; 1 x pipette; 1 x instruction manual; 1 x cleaning cloth and a free hard case included which make the brix refractometer meter convenient to store or carry around.
- 🍷【About us】— XinJiaYi always strive to provide customers with satisfying refractometers and shopping experience. If you have any problem or suggestions about our wine making kit please let us know it and we will get back to you within 24 hours.
- Handheld portable refractometer for Brix (0.0 to 32.0%) measurement of sugar content in fruit, juices, soft drinks, coffee and cocoa beverages, lactic beverages, purees, soups, industrial fluids, water-soluble detergents, and aqueous film forming foams (AFFF) for fire fighting in a 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 165mm), 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
- Alcohol & Brix Refractometer is designed for winemaking. Use to test the sugar content and alcohol concentration level by volume in grape juice.
- MEASURING RANGE: Alcohol: 0-25%VOL / Brix: 0-40%Brix at 20°C working temperature
- Heavy duty built with finest quality of Aluminum and rubber
- Auto Temperature Compensation (ATC), rest easy that your measurements are always accurate regardless of temperature variation
- Cushioned w/ soft and comfortable non-slip rubberized grip, insulate test solution from body heat
- 【Detection system】AISITESY Automatic color scene fog vision, detection process is more comfortable and measurement accuracy is improved. Fully automatic customer perception measurement method, infrared projection, fundus imaging reflection, high resolution The instrument can automatically measure continuously. For children. Patients with frequent eye movements, the measurement operation will be easier to complete. The measurement is quick and easy.
- 【Easy to operate】Auto Refractometer can be used with one hand to complete all measurement operations, including lifting and lowering, left and right, forward and backward movement. The displacement is stable and lightweight, and can quickly capture the pupil. The instrument can automatically zero the sphericity, column and axis position, and also before each test.
- 【HD Display】 True color screen display (7 inches, LED backlight 800*480 resolution) can display the measurement data, measurement mode, characteristics, etc. to the testing physician comprehensively. The physician can freely select and change the options of measurement accuracy, lens eye distance, astigmatism mode, measurement mode, printing mode, date, time, etc. through the display.
- 【Thermal printing】Comprehensive data. AISITESY More than 3 measurements for a single eye, the average value can be printed Double-eye measurement, data stored separately, each tested eye allows printing 5 times measurement results Automatic visualization of the color landscape of the testing system, more comfortable testing process and improved Comprehensive Optometry Measurement accuracy
- 【One-year warranty】Provides a one-year warranty. 24-hour online customer service, when the product has problems in the process of use, AISITESY will provide you with replacement parts warranty service in order to solve the problem for you
- Perfect for anyone who wants to ensure their fruit is ripe-and ready to eat, whether you're a professional farmer or just growing a few trees in your backyard.
- Made-of durable aluminum, this refractometer is lightweight and easy to use, providing accurate-results with just a few drops of-juice.
- Use it to test the sugar content of various fruits, from grapes-and apples-to melons and citrus-fruits, and make sure you're harvesting them at the-peak of their sweetness.
- Accurately measure sugar levels-in fruits with our handheld-refractometer, an essential tool for any fruit-grower or home-gardener.
- With a measuring-range of 0-32% Brix, this refractometer is a must-have for anyone who-cares about the quality and flavor of their fruit.
- 【Measurement Range】 Vertex distance 0mm, 12mm, 13.75mm spherical -20 - +20D (VD=12) 0.12/0.25m-1 Step Cylinder: -8 - +8m-1 0.12/0.25m-1 step Axis: 0~180° 1°Step Cylinder form: -, +, +Pupil Distance: 45-88mm, 1mm step Min. pupil size: 2.0mm
- 【Keratometry】Auto Refractometer Radius of curvature：5.0-10mm (increment:0.01mm)Corneal Power：33.75-67.50D (when corner equivalent refractive index is 1.337），Increment selectable from 0.12,0.25m-1Corneal astigmatism：0.00-8.00m-1 (Increment selectable from 0.12,0.25m-1 )Axis：1~180°(increment:1°)Corneal diameter：2.0 -14mm (increment:0.1mm)
- 【Display screen】HD monitor makes the measurement results and setting images displayed on an easy-to-view screen.AUTO PD measurement: PD is automatically calculated after the measurement is completed.
- 【Simple operation】One hand control: all operations, including up down, right left, forward backward and start, can be easily controlled with one hand through the control lever. Faster and more accurate measurement. Minimum pupil size measurement range is wider to 2.0mm. auto/manual focus function. Convenient user menu settings. 8. Corneal curvature and diopter mode selection.
- 【Easy to operate】Easy-to-Use, One-Hand Control: With all functions fully integrated and easily accessible via one-hand control, Refractometer our instrument is easy to operate, allowing you to accurately obtain eye measurements without requiring additional help or assistance.
- The measuring range is 0‑28%, and the accuracy is 0.20%. It is easy to read and suitable for measuring the salinity of liquids.
- Professional salinity measuring instrument, it is a portable precise optical instrument, with focus adjustment wheel, easy to measure.
- The salinity refractometer uses high‑quality prisms, high‑definition eyepieces, non‑slip rubber sleeves, durable and corrosion‑resistant.
- It has a wide range of applications and can be used for sampling various different reagents and is easy to operate and use.
- Small size and portable, suitable for aquariums, ocean monitoring, agriculture, gardening, salty pools, spas, fish‑keeping, etc.
- Large, Sharp Display Scales with high contrast
- High-quality optical glass material for consistent, accurate readings
- Durable, industrial-grade design with non-roll stand feature to keep unit secure on flat surfaces
- Tactical, non-slip Rubber Grip on body to block transmission of hand heat reducing temperature effects
- Prism encased in all-metal housing allowing sample and prism to reach temperature equilibrium quickly
- 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.
- TRI-SCALE MEASUREMENT: measure and test urine specific gravity, plasma or serum protein, and refractive index for Human.
- MEASURING RANGE: Serum protein: 0 ~ 12 g/100 ml ; Urine specific gravity: 1.000 ~ 1.050 ; Refractive index: 1.333 ~ 1.360 RI
- ATC Compensation Range (Built-in Automatic Temperature Compensation System) from 10~30°C.
- ALUMINUM BODY MATERIAL: Made of aluminum, Cushioned w/ soft and comfortable non-slip rubberized grip, insulate test solution from body heat.Adjustable focus, clear, large and easy-to-read measurements
- QUICK MEASURING: Place a few drops of the liquid on the optical part of the refractometer, cover the prism and you will be able to read the result value on the scale.
- It is designed for measuring sugar content in fruit, honey, maple syrup and other sugary drink.
- It is portable and needs no battery, it is easy to learn and use even for new user.
- Automatic temperature compensation function minimizes the effect of the temperature on testing result.
- It's 0-80% large scale range makes it be suitable in wider field.
- Includes: a firm plastic case, a refractometer ,a cleaning cloth, a screw driver, an operating instructions, some pipettes.
- Function 1: Measuring freezing point of automobile antifreeze based on ethylene glycol or propylene glycol.Measuring Range: -50 to 0 ℃.
- Function 2: Measuring specific gravity of battery acid and provide a quick reference of battery charge condition.Measuring Range:1.10 to 1.40 kg/l
- Function 3: Measuring windshield washer fluid based on ethanol or isopropyl alcohol.Measuring Range:-40 to 0 ℃
- Function 4:Measuring Urea Concentration in automobile diesel exhaust fluid (DEF).Measuring Range:30% to 35%
- Features automatic temperature compensation: makes it even easier to get fast results.
- 🍯BRIX REFRACTOMETER : Brix Refractometer Analyze the sugar content of maple tree sap to observe how it might differ between trees and even between taps on the same tree.Have the tool that professional and nonprofessional simply can't be without.
- 🍯RANGE OF MEASUREMENT: The Refractometer Measurement 0–10% Brix, 0.1% division, and 0.1% Brix accuracy.Total solids in soup or water-soluble glue should be measured.
- 🍯EXCELLENT MATERIAL : Lab Refractometer Made with the best rubber and aluminum available, with automatic temperature adjustment (ATC) Lightweight and portable.
- 🍯ATC AUTOMATIC TEMPERATURE COMPENSATION : Digital Handheld Refractometer Fully Equipped with ATC, Automatic Temperature Compensation, automatically adjust or ambient shifts in outdoor temperatures, while still yielding accurate results.
- 🍯SET INCLUDES : 1 x Traditional Brix Refractometer,1 x Mini screw driver,1 x Cleaning Cloth,2 x Pipettes,1 x Portable USB LED Light (Power Bank not included in set) Protective Carrying Case.
- 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
- Multifunctional Design: Unlike traditional refractometers, with DiFluid digital refractometer you can measure the sugar content of fruits, juices and liquids, and salinity, brewing, urea, easier and faster.
- High Precision: Our sugar brix refractometer delivers high precision measurements within seconds, featuring test range of 55%, precision +/- 0.01%, and resolution of +/-0.05%.
- Digital OLED Display: DiFluid refractometer features a large OLED display that ensures easy-reading but also indicates other useful information such as brix levels, battery level, temperature or refraction index.
- User-Friendly Design: The brix meter refractometer is compact and easy to operate but also intuitive,it allows you to save and share the data on your DiFluid app. The rechargeable design ensures fast charging in 1 hour that will last up to 30 days (not continuous use).
- Wide Range of Applications: The DiFluid digital refractometer is IP67 waterproof, drop-resistant and can be used by producers, employees or analysts to test the sugar level of fruits, foods, liquids, beverages, and vegetables, salinity, brewing, urea.TIPS: kindly make sure that it is calibrated before measurement.
- Handheld portable refractometer for antifreeze and battery charge level measurement of the freezing point of propylene glycol (-50.0 to 32.0 degrees F), the freezing point of ethylene glycol (-60.0 to 32.0 degrees F), and the specific gravity (SG) of battery acid (1.10 to 1.40) in a 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 150mm), 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
- Calibrated using a few drops of distilled or deionized water, eliminating need for additional calibration solutions
- Sugar content can be measured utilizing only two metric drops of sample substance
- Results displayed within several seconds for quick results
- Automatic temperature Compensation (ATC) eliminates need for extra calculations
- Large LCD screen for readability
How to choose a good optical refractometers
Does the idea of finding a fantastic optical refractometers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in optical refractometers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top optical refractometers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top optical refractometers on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top optical refractometers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top optical refractometers based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the optical refractometers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good optical refractometers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your optical refractometers.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting optical refractometers for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our optical refractometers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what optical refractometers should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on optical refractometers.
