Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant's customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
Best Choice Nandaga 
Alcohol Refractometer for Spirit Alcohol Volume Percent Measurement 0~80% v/v. Alcohol Volume Meter for Alcohol Liquor P 【Concentration Measurement Range】Turn the eyepiece to adjust the handwheel to make the blue and white lines clear. The sJiawu 
Digital BRIX Refractometer 0-55% Brix Range, Handheld Pocket High Accuracy BRIX Meter, Digital BRIX Tester Sugar Content 【HIGH ACCURACY】Brix meter has built in excellent chip, high measurement accuracy, sensitive response, fast measurement sBest Value GAIN EXPRESS 
Dual Scale Salinity Refractometer ATC 0-100ppt (0-10%) & 1.000-1.070 Specific Gravity, Portable Meter Tester for Seawate ✅Accurate Salinity Measurements: This optical refractometer accurately measures the salinity of seawater or low concentrQUMOX 
QUMOX Refractometer for Brix Testing, 0-32% Scale with ATC, Ideal for Early-Stage sap Monitoring, Fruit Juice, Wine, and Single Scale Design: Measures Brix from 0–32%, ideal for low-sugar liquids such as fruit juice, wine, and sap.Fdit 
Professional Brix Refractometer 0-32%, Sugar & Alcohol Tester for Beer, Wine, Juice, with ATC (10-30°C), Includes Case, Professional Measuring Instrument: Perfectly designed for accurately testing the Brix level of sugar in various liquids,GUPE 
Brix Refractometer, Dual Scale Specific and Brix Digital Handheld Refractometer 0%~32% Honey Moisture Tester, Hydrometer Accurate Work: Built in automatic temperature compensation enables consistent and accurate readings, just work at room tFUTISKY 
Brix Refractometer with ATC,Digital Handheld Refractometer for Beer Wine Brewing, Dual Scale-Specific Gravity 1.000-1.13 Main body is made of aluminum and ABS rubber, sturdy design, anti-rust and resistant to abrasion and corrosion. OpticalXUMIUZIY XUMIUZIY Digital Brix Refractometer, High Brix Tester for Determining Sugar Content, 0-55% Meter with Automatic Calibrat [Accurate Readings] Get accurate Brix measurements with the built-in high- chip for accurate results.QUMOX QUMOX 3-in-1 Honey Refractometer for Moisture, Brix and Baume, 58–90% Brix Scale – No Battery Needed, ATC Optical Tester 3-in-1 Measurement – Quickly measures honey moisture content (12–27%), sugar concentration (Brix 58–90%), and Baume (38–QUMOX QUMOX 0–28% Salinity Refractometer with ATC, Optical Salt Meter for Sodium Chloride (NaCl) – Sea Water, Brine, Pickle, F Accurate Salt Measurement – Measures salinity from 0% to 28% with ±0.2% precision, ideal for testing salt levels in seawHHTEC HHTEC Refractometer 0-90% Brix - Measure Sugar Content for Honey, Syrup, Juice & Drinks - Precise Hand Refractometer wit Easy to use: ideal for measuring honey, syrup, juices, jams, drinks and other liquids.QUMOX QUMOX 3-in-1 Veterinary Refractometer for Urine Specific Gravity & Serum Protein – Dog, Cat, Pet Health Monitor, Optical 3-in-1 Veterinary Testing – Designed for animals, this refractometer tests urine specific gravity for dogs and cats, andZudoo Brix Refractometer, Portable Digital Handheld Brix Refractometer, 0 to 55% Range High Accuracy Brix Meter, Automatic Cal ★【FAST AND ACCURATE READINGS】: Digital Brix refractometer has built in excellent chip, high measurement accuracy, sensit14% Off Jaerb Salinity Refractometer, 0-100% Handheld Salinometer with Temperature Compensation Salinity Meter Hydrometer, Digital Ref 【ATC FUNCTION】Salinity refractometer with automatic temperature compensation with high- seawater salinity refractometer,TUXIAOT 0-90% Brix Refractometer with ATC, Handheld Sugar Content Tester for Honey, Syrup, Molasses, Fruit Juice & Beverages, Po Wide Range ApplicationsAgriculture Solutions Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation, b Measure salt water or salinity of water, ideal for aquariums and marine monitoring.Sorandy Sorandy Professional Gemstone Refractometer with Electric Torch for Easy Identification of Single and Double Gemstones, [RELIABLE IDENTIFICATION OF GEMSTONES] Offers high precision and easy operation to measure the refractive index of gemstLICAEVEY Digital Brix Refractometer, 0‑55% Range High Accuracy Brix Tester Meter for Fruit Juice and Coffee Beverage Drinks Sugar HIGH ACCURACY: Brix meter has built in excellent chip, high measurement accuracy, sensitive response, fast measurement sGAIN EXPRESS Alcohol Refractometer with ATC 0~80% VOL Volume, Optical Handheld Concentration Tester Meter for Distilled Beverages Win MEASURING RANGE : 0-80% v/v (Volume Percentage) DIVISION: 1% (0-60%), 2% (60-80%)GAIN EXPRESS 5-in-1 Automotive Battery Antifreeze Refractometer ATC for Specific Gravity, Ethylene Propylene Glycol System & Windshie Portable design & easy to use, with 5 clearly defined scales for the following 3 main uses:CHUSHEN Refractometer,ST335A LCD Digital Refractometer Portable Handheld Honey Refractometer ATC Sugar Percent Tester Sugar Conc 🥁 Practical Refractometer: it is used to test the concentration and refractive index of sugar-containing solutions in fQUMOX QUMOX 0–80% Brix Refractometer for Sugar Content in Fruit, Juice, Honey, Syrup & Drinks – Optical Tester with ATC, No Ba Wide 0–80% Brix Range – Measures sugar content in fruits, fruit juice, honey, maple syrup, soft drinks, and other sugaryYosoo Bee Tools Honey Refractometer 58-90% Sugar Content Beekeeping Portable Refractometer Honey Concentration Meter for Honey Precision Measurement: Sharp dividing line (blue-white), good readability (daylight recognizable), adjustable eyepiece fGeneric Refractometer for Sugar Content, 0-90% Range, ATC Function, Maple Syrup and Honey Testing， Bee Tools Honey Refractometer 【Precise Sugar Content Testing】This refractometer delivers highly accurate sugar content measurements, ranging from 0-90Jqzcesu Triple Scale Hydrometer Home Brew Beer Wine Mead Kombucha - Specific Gravity 0.990-1.160, ABV 0-20%, Brix Tester 0-35 - ELIMINATE THE RISK OF BOTTLE EXPLOSIONS: Stop guessing when your brew is ready. Bottling before yeast activity has fullyPOENVFPO Brix Refractometer Meter Dual Scale Handheld Measuring Tool for Sugar Brewing, Simple to Use with Clear Reading, for Agr [EFFORTLESS ] Simply place a few drops of liquid on the prism, face it towards light, and view through the eyepiece.QUMOX QUMOX 4-in-1 Coolant Refractometer for Antifreeze, Battery Acid, Diesel Exhaust Fluid & Windshield Washer – No Battery N 4-in-1 Fluid Testing – Accurately tests the freezing point of coolant, specific gravity of battery acid, urea concentratGAIN EXPRESS Clinical Refractometer with ATC, Tri Scale Serum Protein/Urine Specific Gravity/Refractive Index, for Veterinary Dog Cat Human clinical refractometer 3-in-1 testing of Serum protein, Urine specific gravity, and Refractive indexHIKOAN HIKOAN LCD Digital Refractometer Portable Handheld Honey Refractometer ATC Sugar Percent Tester Sugar Concentration Dete Practical Refractometer: it is used to test the concentration and refractive index of sugar-containing solutions in fastRZ Mask RZ Salinity Refractometer Dual Scale Salinity Meter, ATC Professional Salinity Water Test Kit for Aquariums, Marine Moni Measures on 2 Scales: Aquariums refractometer features Specific Gravity (D 20/20) 1.000-1.070sg and parts per thousand 0GAIN EXPRESS 0-28% Salinity Refractometer ATC, Sodium Chloride (NaCl) Salt Level Meter Tester, Test Kit for Sea Water Brine Seawater Accurately Measure Salt Concentration: Easily determine the salinity of water containing dissolved salt and minimal otheJoyzan Joyzan Antifreeze Refractometer, Frost Protection Refractometer ATC for Glycol Coolant Battery Acid Tester Checking The Car Owners’Helper: This antifreeze tester helps measure the specific gravity of battery acid and then provides a quick rFdit Alcohol Refractometer, Professional Handheld Alcohol 0-80% Test Refractometer Wine Tester Meter Measure Instrument 【Alcohol Content Measurement Tool Tester】Alcohol Refractometer designed for testing Spirit Alcohol Volume Percent, for BMUNEFE MUNEFE Sugar Tester Refractometer, Digital Handheld Refractometer, 0~32% Brix Meter Refractometer for Measuring Sugar Co PROFESSIONAL MEASUREMENT INSTRUMENT:The sugar tester refractometer is a highly professional tool for accurately measurinJectse Refractometer Concentration Meter Brix Tester 0-90% with Automatic Temperature Compensation, Simple Operation, Wide Appl Easy to use, sturdy refractometer is compact in size and light in weight, convenient to keep up and carry around.GAIN EXPRESS 0-10% Brix Refractometer with ATC Low-Concentrated Sugar Content Solutions Accuracy 0.1% Maple Sap Cutting Liquid CNC Ma Measuring Range: 0~10 %Brix with 0.1% division and ±0.1%Brix accuracyGAIN EXPRESS Gain Express 6-in-1 Automotive Car Refractometer ATC for Adblue/Antifreeze/Battery Acid/Windshield Fluid, Coolant Charge 6 SCALES : (1) Battery Fluids, (2) Ethylene Glycol Freezing Point, (3) Propylene Glycol Freezing Point, (4) Cleaning FluGreystone Books Refractometers Made Easy: The "RIGHT-WAY" Guide to Using Gem Identification Tools Refractometers Made Easy: The Right-Way Guide To Using Gem Identification ToolsGugxiom Gem Refractometer, Jewelry Refractometer, RHG181 1.30-1.81 Professional Ldentification Gem Refractometer, Gem Portable R ABS MATERIAL: This gem tester is made of ABS material. This material is hard and wear-resistant, which can meet the operGAIN EXPRESS 3-in-1 Automotive Battery Antifreeze Refractometer, -60~0°C Ethylene/ -50~0°C Propylene Glycol/ 1.100-1.400 Battery Flui 3 Scales in 1 : (1)Battery Fluids Specific Gravity (Density): 1.100 - 1.400kg/l ; (2) Ethylene Glycol Freezing Point: -616% Off FUTISKY Precision Salinity Refractometer for Seawater Aquariums, 0-100 PPT with Automatic Temperature Compensation, Aluminum All Constructed from an aluminium body and ABS rubber, the salinity refractometer is lightweight and extremely durable and cAnton Paar SmartRef by Anton Paar - Digital Refractometer - Sugar, Brix, Salinity, Plato, Specific Gravity (SG) Wide measuring range (0 to 85 °Brix)Diyeeni Diyeeni Digital Brix Refractometer, Digital Brix Tester with LCD, Automatic Temp Compensation Meter Refractometer, ±0.2% 【Broad Utility】: The digital Brix refractometer is a versatile tool, finding applications across various industries suchTOPINCN TOPINCN Brix Refractometer High Accuracy Brix Tester Meter, Suitable for Fruit Sugar Content Detection, PCB Material [BACKLIGHT DISPLAY] HD display offers clear visibility and supports three data display options.YUEHISY Digital Brix Refractometer for Fruit Juice and Coffee, Rechargeable Sugar Tester Mete with Auto Temperature Compensation WIDE APPLICATION: Digital brix refractometer is widely used in food, beverage, fruit sugar content determination, crop sBusoTh BusoTh Gem Refractometer, RHG181 1.30-1.81 Professional Portable Identification Tester for Jewelry, High Accuracy with 3 Specially designed for measuring the refractive index of and solid materials.NDNCZDHC Antifreeze Refractometer, Glycol Refractometer Car Antifreeze Battery Acid Engine Coolant Tester Tool RHA-503ATC High quality material can make sure the durability and stability of the refractometerOVAQUIXI OVAQUIXI Refractometer with Temperature Compensation, 0-55% Brix Range, Fast Measurement Speed for Food and Beverage Ind [EFFICIENT & ACCURATE] Enjoy fast and precise sugar content measurements with this Brix meter, designed for efficient anDANOPLUS DANOPLUS Honey Moisture 58~90% Brix Refractometer with ATC, Handheld High Measuring Range Sugar Content, Honey, Jelly, J This refractometer is designed for testing the honey nutrient content of honey moisture, glucose brix and glucose baume.HHTEC HH Tec Wine Refractometer Salinity Refractometer 0 to 32 Brix (ZUKER) 0 140 Ochsle 0 27 KMW with ATC for Winzer Wine Bee Perfect for winemakers, beer brewers and fermentation - determine the optimal harvest time by precise measurement of theBTER Gem Refractometer, Professional High Accuracy Jewelry Gem Refractometer Quick Identification 1.30 to 1.81 Measuring Rang 【JEWELRY GEMSTONE IDENTIFICATION TOOL】The primary use of this gem refractometer is to measure the angle at which light iDenash Digital Brix Refractometer, Temperature Compensation Function Easy to Use 0‑55% 3 Datas Display Brix Meter for Drinks fo HIGH ACCURACY: Brix meter has built in excellent chip, high measurement accuracy, sensitive response, fast measurement sYUEHISY Digital Refractometer, 0 to 55% High Accuracy Sugar Tester Meter with HD Backlight Display, Automatic Temperature Compen WIDE APPLICATION: Digital sugar degree refractometer is widely used in food, beverage, fruit sugar content determinationKUNLONGSKY Black Plastic Refractometer Beer Wort Sugar Alcohol Meter 0-30%1.000-1.120 Specific Handheld Tool Hydrometer Tester DUAL SCALE: and precisely display the (0-32%) and Specific (1.000-1.120) at the same time, no need to switch unit for reYDuupxe YDuupxe Refractometer 0-50% High Accuracy Aluminum Portable Liquid Sugar Test Equipment for Easy Carry [Easy Operation]Simple usage method for accurate measurements.EverTech Dual Scale 0-32% Brix and 1.000-1.130 SG Handheld Refractometer ATC Beer with Carry Case YS136 Durable Aluminum Body – Made from high-quality aluminum with non-slip ABS rubber grip. Sturdy, rust-resistant, abrasion-YaSao Salinity Refractometer Handheld Seawater Hydrometers Optical Salinity Tester Portable ATC Refractometer, Dual Scale: 0-1 XRCLIF Juice Refractometer Hydrometer with ATC, Brix Reader Meter Refractometer, Brix 0-32% Measuring Sugar Content in Fruit, S 🍓【Easy to Use】— Place 2 - 3 drops of liquid sample onto the prism of this brix refractometer, then look through the eyeYosoo Wine Refractometer, 3 in 1 Hand Held Sugar Content Mearsuring Tool with Home Brewing Equipment for Beer Wine Fruit Sugar 【3 in 1 Wine Refractometers】3 in one hand held refractometers, with mesure range 0-25% Vol, 0-40% Brix and 0-22 Baume.EverTech Device for Measuring Sugar Levels in Fruits and Honey Suitable for Home Brewing, Brix Range 0-32%, Non-Electric, Made of 0–32% Brix Measurement Range – Provides precise sugar concentration readings for food, beverages, and selected industriaHaofy Honey Refractometer Brix Refractometer 58-90% for Honey Test, Fruit, Beer, Wine and Sugar Test EVGATSAUTO EVGATSAUTO Digital Brix Refractometer, Sugar Content Tester High Accuracy with Auto Temperature Compensation for Fruit J 【Durable and Reliable】: This refractometer is equipped with a built-in chip with a resolution of 0.1% Brix and an accuraBewinner Bewinner Honey Refractometer 0-90% Handheld Pocket Sugar Concentration Meter with ±0.2% Brix ±0.3°C Accuracy for Honey Q Elegant color and stylish design, compact size and portable, easy to carry anywhere and anytime.Plyisty RHB-10ATC Digital Handheld Refractometer with ATC, 0-80% Range, 0.1% High Accuracy, for Beer Wine Brewing The refractive index made according to different refractive index of the liquid is very accurateTEKCOPLUS Brix Refractometer Range 0-10% Brix Testing Synthetic Machining Coolants, Maple sap, Cutting Liquid, CNC, for Maple Syru BRIX REFRACTOMETER : Brix Refractometer Analyze the sugar content of maple tree sap to observe how it might differ betweNANBEI NANBEI 0-80% Brix Meter Refractometer, Refractometer Honey,Portable Refractometer for Honey,Digital brix Refractometer f Brix Range 0-80%, the reading resolution is 0.5 %.Brix Accuracy: +/-0.5%,large scale range makes it be suitable in widerOimzzr Oimzzr High Precision 0-55% Digital Br Refractometer Br Meter Automatic Temperature Compensation Refractive Index Sugar ✔️High Accuracy: Digital br meter can clearly and accurately display the br of the measured liquid, 0-55% accuracy , accOriGlam OriGlam 4-in-1 Car Adblue Urea Refractometer Battery Fluid Ethylene Propylene Glycol ATC Test 4 concentration: Ethylene Glycol, Propylene Glycol, Battery Fluids, and Cleaning Fluids.gernie Digital Brix Refractometer, 0‑55% Range High Accuracy Automatic Calibration Brix Tester HD Backlight Display Portable Ha WIDE APPLICATION: Digital brix refractometer is widely used in food, beverage, fruit sugar content determination, crop sQualoramall Gemstone refractometer detector (flashlight only), refractive index range 1.30~1.81, equipped with flashlight and refrac [COMPLETE GEMSTONE TESTING KIT] This kit includes a Gem Refractometer, flashlight, and refractive oil, providing everythTbest Tbest Jewelry Tools and Accessories,RHG181 1.30 1.81 Professional Gemstone Ldentification Gem Refractometer Identify single and double gems quickly and precisely.Flagfront Digital Brix Refractometer Flagfront brix Meter Refractometer Automatic Temperature Compensation Brix Refractometer Rang The Flagfront Digital Brix can clearly and accurately display the measured sugar content and the automatic temperature cXRCLIF XRCLIF High Precision Alcohol Refractometer 0-80% v/v, Hand-held Alcohol Content Measurement Tool, Portable Refractomete 💎【Wide Application】—the alcohol refractometer widely used in scientific research, food industry production, alcohol purDANAIXZ DANAIXZ Professional Gemstone Refractometer RHG181 High Accuracy Portable Jewelry Refractometer for Gemstone Identificat [HIGH PRECISION GEMSTONE ANALYSIS] This professional gemstone refractometer is specially designed for measuring the refrOVAQUIXI OVAQUIXI Refractometer for Alcohol Brewing, Handheld Alcohol Test Refractometer Wine Tester Professional Alcohol Volume 【Concentration Measurement Range】: Turn the eyepiece to adjust the hand wheel to make the blue and white line clear. TheTOPINCN TOPINCN BRIX Refractometer Dual Skala Messer for Sugar Brewing, Reliable Specific Difficult -Strength Evaluation, for Dr [Exact work] Enjoy precise results with automatic temperature compensationGeneric Brix Refractometer Meter Gauge Dual Scale Handheld Measuring Tool, Quickly Display Brix 0-32% and Specific Gravity 1.000 [Automatic Temperature Compensation] Ensures consistent and precise results, working effectively at temperatures of 0-25SOULONG SOULONG Portable Honey Refractometer Mini Honey Brix Tester Measures Sugar Water Baume Content 58-90% 10-33% 38-43oBe wi [PRECISE & RELIABLE MEASUREMENTS] This portable honey refractometer delivers highly accurate readings for sugar contentSpacnana Spacnana Digital Sugar Degree Meter Refractometer with HD Backlight Display, Rechargeable Brix Meter for Liquid Sugar Co WIDE APPLICATION: Digital sugar degree refractometer is widely used in food, beverage, fruit sugar content determinationXRCLIF Frost Protection Refractometer, 4-in-1 Antifreeze Tester, Coolant Tester, Refractometer for Checking The Freezing Point 🚗【4-in-1】 - If you find that the battery of your cars, solar system or heat pumps is no longer durable, do not hurry toOshhni Oshhni Jewelry Refractometer Accessories Lightweight Professional with Flashlight Refractive Measuring Portable for Jewe 【Complete Kit】: The Gem Refractometer Kit includes a refractometer, a flashlight, reflective oil, an instruction manual,Zbutresd Refractometer， Digital Refractometer for Sea Salinity Meter, 1.000 .070SG, Handheld and Easy to Use Features a comfortable non slip rubberized grip that keeps test solutions separate from body heat.SunGrow SunGrow Aquarium Refractometer, 7.6 Inches, Measure Salinity of Water, Remarkable Accuracy, Includes Calibration Tool, E Specifically Designed Refractometer For Saltwater Aquarium --- The algorithm is made specifically for testing seawater aZudoo Digital Brix Refractometer, Range 0‑55% Brix Meter, Automatic Temperature Compensation High Accuracy Digital Refractomet Domary Domary Salinity Refractometer Handheld Seawater Hydrometers Optical Salinity Tester Portable ATC Refractometer, Dual Sca Handheld design and non-slip rubber handle for easy operation.RGBS Refractometer for Dogs and Cats for Pets Urine Specific Weight (1000~1060) Clinical Refractometer with Serum or Plasma P Clinical Refractometer - This refractometer can measure urine-specific gravity and serum protein immediately for cats anZerodis Zerodis Portable Handheld Refractometer, 3 in 1 Brix Baume Tester with Measurement Range 0-25% Vol 0-40% Brix 0 22 Baume [Measurement] This 3-in-1 refractometer provides accurate measurements for content (0-25% vol), sugar concentration (0-4Flagfront Flagfront Digital Brix Refractometer brix Meter Refractometer USB C Charging Automatic Temperature Compensation Brix Ref The Flagfront Charging Digital Brix can Clearly and accurately display the measured sugar content and the automatic tempHXTDBY Antifreeze Refractometer 4-in-1 Antifreeze Tester Coolant Refractometer Ethylene Propylene Glycol Refractometer for Chec 4-in-1 Refractometer - designed for checking battery acid condition of your cars, solar pant or heat pumps. RefractometeNUMNBE Specific Gravity Refractometer, Handheld Beer Wine Juice Sugar Brix Meter, 0-32%, 1.000-1.130 Range - High Accuracy, Lig [Lightweight Aluminum Build]: Crafted from durable aluminum, this refractometer is wear and easy to handle, ensuring longernie Alcohol Refractometer, Refractometer for Spirit Alcohol Volume Percent Measurement with Automatic Temperature Compensati A professional measure instrument to test alcohol concentration of liquorHaloVerde HaloVerde Automatic Temperature Compensation Alcohol Tester with 0 to 80 Percent Range for Spirits, a Professional Disti EFFORTLESS TESTING: This alcohol tester simplifies concentration measurement. Just place a small liquid sample on the prMEKOTRIN MEKOTRIN Digital Brix Refractometer, Brix Tester 3 Datas Display Temperature Compensation Function 0‑55% for Sugar Conte EASY TO USE: Sugar degree meter refractometer is equipped with a high transmittance refractive prism, and the liquid canExtech Extech RF12 Portable Brix Refractometer (0 to 18%) with Automatic Temperature Compensation Compact size, easy to operateICON Group International, Inc. The 2027-2032 World Outlook for Refractometers CCJZBCAU Brix Refractometer for Brix Testing, Professional Handheld Alcohol, Aluminium Honey Refractometer with Digital Display, Premium Quality Texture: It is crafted from premium quality texture, which is sturdy, with stable structure, and can witMTSDM MTSDM Digital Handheld Refractometer, Portable Alcohol Refractometer, Brix Refractometers, Hand-held Alcohol Content Mea 【Professional Measurement Instrument】: The sugar tester refractometer is a highly professional tool for accurately measuTRZ Beekeeper Refractometer Honey 12-27% Water Honey Moisture 58-90% Brix Sugar Baume For Beekeeping Honey Condensed Milk Su ICON Group International, Inc. The 2026-2031 World Outlook for Refractometers ICON Group International, Inc. The 2027-2032 World Outlook for Inline Process Refractometers