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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 sQUMOX 
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.
Spirit Alcohol Refractometers High Accuracy Wine Alcohol Tester Measuring Tools One-Button Testing: Testing alcohol content is a breeze with this wine alcohol tester's one-button operation. You can coBest Value HHTEC 
HH Tec Wine Refractometer Salinity Refractometer 0 to 32 Brix (ZUKER) 0 140 Ochsle 0 27 KMW with ATC for Winzer Wine Bee An essential instrument for measuring grape juice for making quality wines. With the winemaker wine refractometer you ca
Refractometers Great Material Beautiful For Home Open the cover plate, use a clean cloth to wipe the prism. Put the cover directly point to the light source or bright plRZ 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 0QUMOX 
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, andRefractometers Made Easy: The "RIGHT-WAY" Guide to Using Gem Identification Tool The approach is direct and practical, and its style is easy to understand. Subtitle The "RIGHT-WAY" Guide to Using Gem IGeneric 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 0-90Spirit Alcohol Refractometers High Accuracy Wine Alcohol Tester Measuring Tools One-Button Testing: Testing alcohol content is a breeze with this wine alcohol tester's one-button operation. You can coYUEHISY 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 determinationHHTEC HHTEC Refractometer 0-90% Brix Hand Refractometer for Determining The Sugar Content of Honey Vegetable Oil Syrup Molasse Use: it is suitable for measuring honey, opst, vegetables, condensed milk, vegetable oils, sugar syrup (syrup), fruit jaCat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Scale range: 1.10~1.40kg/l. Range of scale G13(Propylene Glycol): -50~0℃. Range of scale G11/G12(Ethylene Glycol): -50~0QUMOX 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 sugaryCat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Health & Beauty. Scale range: 1.10~1.40kg/l. Scale range: 30~50%. You can read the result value on the scale. Range of sXRCLIF 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 eyeCat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Scale range: 1.10~1.40kg/l. Range of scale G13(Propylene Glycol): -50~0℃. Range of scale G11/G12(Ethylene Glycol): -50~0Denash 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 sCat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Scale range: 1.10~1.40kg/l. Range of scale G13(Propylene Glycol): -50~0℃. Range of scale G11/G12(Ethylene Glycol): -50~0Agriculture 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.Cat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Scale range: 1.10~1.40kg/l. Range of scale G13(Propylene Glycol): -50~0℃. Range of scale G11/G12(Ethylene Glycol): -50~0MUNEFE 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 measurinPortable Hand Held Grape And Wine Alcohol Refractometers 0-25% Vol 0-40% Bri NEW Turn the eyepiece to adjust the hand wheel to make the blue and white line clear. The scale value of the dividing line iYosoo 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 fCat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Scale range: 1.10~1.40kg/l. Range of scale G13(Propylene Glycol): -50~0℃. Range of scale G11/G12(Ethylene Glycol): -50~0Zudoo Brix Refractometer, Portable Digital Handheld Brix Refractometer, 0 to 55% Range High Accuracy Brix Meter, Automatic Cal Cat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Propane Elbow Adapter With 3/8" Male Flare Connection Brass Elbow Adapter. Scale range: 1.10~1.40kg/l. Range of scale G1GOYOJO Digital Brix Refractometer, Brix Meter with Automatic Temperature Compensation for Water Samples, Food, Fruits, Beverage 【Multi-Industry Solution for Sugar Content Measurement】Whether you're a farmer, food producer, or beverage maker, this DCat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Health & Beauty. Scale range: 1.10~1.40kg/l. Pet Supplies. Range of scale G13(Propylene Glycol): -50~0℃. Range of scaleGAIN 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 FluMilwaukee MA882 Digital Wine Refractometer Maintenance is a breeze also with an easy-to-clean sealed flint glass prism and stainless steel well. "I used this for fFUTISKY 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 cCat Dog Refractometer Refractometers Animal Clinical Refractometer 1.10~1.40kg/l Scale range: 1.10~1.40kg/l. Range of scale G13(Propylene Glycol): -50~0℃. Range of scale G11/G12(Ethylene Glycol): -50~0AIMALL AIMALL 3-in-1 58-90% Honey Refractometer Calibration Refractometer Honey Moisture Meter for Honey Moisture & Brix & Baum 🍯 Precision Measurement: Ensure the highest quality of honey with accurate moisture (12-27%), Brix (58-90%), and BaumeGAIN 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 othe11% Off GAIN 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 indexJiawu 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 sRESFNSE RESFNSE Refractometer with ATC Dual Scale Specific & Hydrometer in Wine Making and Beer Brewing Homebrew Kit 3.Consistently accurate readings of 0-32% and 1.000-1.120 Specific .17% Off XRCLIF 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 purQUMOX 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 seawAIMALL AIMALL Portable ATC Refractometer 0-32% Brix Tester for Sugar Fruit Alcohol Meter – Handheld Meter with Calibration Scre Precise Brix Measurements for Food and Industry The Portable Refractometer measures the Brix level from 0% to 32%, proviMilwaukee MILWAUKEE'S Instruments MA871 Digital Brix Refractometer, Range 0-85% Fast, accurate results with digital dual level LCD readout. Easy measurement with just 2-3 drops of sample needed and reBTER 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 iGemStone Press Refractometers Made Easy: The "RIGHT-WAY" Guide to Using Gem Identification Tools (The Antoinette Matlins "RIGHT-WAY" Se HXTDBY 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. RefractometeNANBEI 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 widerFdit 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 BXinJiaYi XinJiaYi Sugar Refractometer 0-90% Handheld Brix Refractometer High Accuracy Brix Measurement with ATC for Fruit, Bevera Easy to use: Apply 2-3 drops of a liquid sample to the prism of this Brix refractometer and then look through the eyepieXRCLIF 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 toYUEHISY 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 sFdit 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,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,LICAEVEY 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 sMAEBLA Handheld Brix Refractometer 0–90% with ATC – Sugar Content Tester for Honey, Syrup, Jam, Fruit Juice, Vegetable Oil – In ✔ Wide Measuring Range (0–90% Brix): Ideal for testing sugar levels in honey, fruit juice, syrup, jam, vegetable oil, anRGBS 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 anLuqeeg Brix Refractometer 0~80%, Digital Refractometer, Handheld Sugar Refractometer for Measuring Sugar Content in Fruit, Hone 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–ACAGALA ACAGALA Antifreeze Refractometer Coolant Tester for Checking Freezing Point, Concentration of Ethylene Glycol, Battery A Handheld design and non-slip rubber handle Compatible with easy operation.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 accuracyAqua Medic Aqua Medic Refractometer LED Temperature compensated refractometer with LED illuminated scale for determining the salt contentDomary Domary Portable Handheld ATC Alcohol Refractometer Liquor Volume Percent Tester with 0-80% Measuring Range Handheld design and non-slip rubber handle for easy operation.MOTRAIN Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium, Saltwater Tester Hydrometer, Dual Sacle 0-100ppt & Dual-Scale Measurement for Accuracy: This refractometer measures both salt percentage and specific gravity, with a speciGAIN 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%)Gugxiom 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 operJoyzan 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 rYosoo 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.gernie Brix Meter, 0-50% Portable LCD Digital Brix Refractometer, Automatic Temperature Compensation, Handheld Sugar Refractome Power saving, after 3 minutes without any operation, it will automatically turn off the power.TOOGOND Professional Salinity Refractometer,Salinity Tester, Salt Tester for Saltwater Pool, for Saltwater Aquarium, Pools, and Salinity Refractometer：This refractometer measure salt water or salinity of water, ideal for aquariums and marine monitoSunGrow 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 aJectse 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.Eosnow Eosnow Gemston Refractometer, Lightweight and Compact Jewelry Refractometer Long Service Time High Accuracy for Measurin This refractometer features high accuracy and easy operation.ANKROYU Gemstone Refractometer, RHG181 1.30-1.81 Gemstone Refractometer,Professional Gemstone Identification Handheld Refractome FAST IDENTIFICATION: Identify single and double stones quickly and accurately. Helps identify diamonds, moissanite and cイービーエム(EBM) ATAGO Concentration Meter Master - Mentsuyu α Automatic Correction and Waterproof Function Handheld Refractometer External Dimensions: 1.3 x 1.3 x 6.6 inches (33 x 33 x 16Generic Digital Gemstone Refractometer,Professional Jewelry Tester Identification Tool,Gemstone Tester with LCD Screens, Refract 【Premium Scratch-Resistant Material】Features a hard aluminum alloy work surface for stability and durability, plus an ABContinuum Aquatics Continuum Reagents Refractometer Calibration Standard, Provides an Accurate Reference for The Calibration of seawater re 35 ppt salinityNDNCZDHC 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 refractometerPOENVFPO 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.Atago ATAGO Concentration Meter, Automatic Correction, Handheld Refractometer MASTER-20T External Dimensions: 1.3 x 1.3 x 8.0 inches (33 x 33 x 20Domary Professional Brix Refractometer Honey Sugar Tester Meter Accurate Measurement for Beekeepers [Wide Range & High Precision] Measures brix concentration from 58-90% with a minimum scale of 0.2% for accurate results.Taidda Taidda Refractometer,Jewelry Refractometer Portable Lightweight 1.30-1.81 Professional Gemstone ldentification Gem Refra Alvinlite Aichose Brix Refractometer with ATC, Concentration Meter Brix Tester 0-90% with Automatic Temperature Compensation Measu Refractive index is made according to different refractive index of liquid, small and accurant.Plyisty Refractometer with ATC, RHB-10ATC Digital Handheld 0-80% Meter, 0.1% High Accuracy Refractometer for Beer Wine Brewing The refractive index made according to different refractive index of the liquid is very accurateSHASUXTING 0-40% Brix Meter Refractometer With ATC Handheld Sugar Refractometer Hydrometer in Wine Making and Beer Brewing Homebrew Premium Quality Texture: It is crafted from premium quality texture, which is sturdy, with stable structure, and can witBewinner 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.QWORK QWORK Brix Refractometer, with Automatic Temperature Compensation, Brix 0-32% for Sugar Content Testing of Sugar Food Fr Measurement range: 0~32% Refractometer, ideal for sugar measurementsAnton Paar SmartRef by Anton Paar - Digital Refractometer - Sugar, Brix, Salinity, Plato, Specific Gravity (SG) Wide measuring range (0 to 85 °Brix)ANKROYU Refractive Index Fluid Oil Set – 2 Bottles, 3ML Each, 1.300-1.800 RI for Gem Refractometer Testing, Professional Gemston The refractive index fluid is gemologist tool for identifying refractive index.OriGlam 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 sFlagfront 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 cYaSao Salinity Refractometer Handheld Seawater Hydrometers Optical Salinity Tester Portable ATC Refractometer, Dual Scale: 0-1 LBMED Digital Abe Refractometer, Monocular Abbe Refractometer with Adjustable Sharpness, Visual Alignment and Optical Proporti 【Professional】is an instrument used to measure the ND refractive index and average NF-NC transparent or translucent liquQUMOX 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 concentratgeneric Gemstone Refractometer, Gemstone Tester with LCD Screens, Refractive Index 1.300-3.000, Error: + -0.005, Accuracy: 0.001 【Durable Gem Refractometer】Scratch-resistant aluminum alloy platform with ABS housing ensures precise, safe gem testingAOKUY Antifreeze Refractometer, Hand Refractometer, Coolant Tester for Ethylene Glycol, Propylene Glycol, Freezing Point of Co This style is equipped with °C.gernie Alcohol Refractometer, Refractometer for Spirit Alcohol Volume Percent Measurement with Automatic Temperature Compensati A professional measure instrument to test alcohol concentration of liquorHaofy Honey Refractometer Brix Refractometer 58-90% for Honey Test, Fruit, Beer, Wine and Sugar Test gernie Brix Refractometer, 0-32% Measuring Range Brix Meter with ATC and Dual Scale, Handheld Refractometer for Beer Wine Brewi Good Material: The refractometer is made of non staining, non corrosive and non reactive ABS material, ensuring hygieneAMONIDA AMONIDA 2~14g/dl Clinical pet Refractometer, 1.000~1.060 SG Urine Specific Gravity Refractometer, Manual Focusingq Handh Professional Design The animal clinical refractometer used triple-scale design to measure the specific gravity of cat'sDISHENGZHEN Refractometer Gem Refractometer，with Refraction Oil Jewelry Identification Instrument Distinguish Tools Jade Stone Refra Specially designed for measuring the refractive index of gemstones and solid materials.ALLmeter ALLmeter Wine Refractometer – Brix 0–40% & Potential Alcohol 0–25% (ATC) – Handheld Sugar Meter for Home Winemaking & Br Accurate Brewing Control: Achieve precise control over your brewing process by accurately measuring the sugar content inTTOCAR Antifreeze Tester ,Glycol Refractometer Car Antifreeze Battery Acid Engine Coolant Tester Tool Antifreeze Coolant Tester Precise Resolution: Enjoy the high-resolution factor of 5°C for Propylene Glycol, 10°C for Cleaning Fluids, and 0.01sg f10% Off Haofy Haofy Refraction Index Fluid Oil Gemologist Tool 3ml X 2 1,300-1,800 RI for Gemstone Refractometers, Glare Removal Solut [Improvement of gemstone identification] You can easily determine the refractive index of your gemstones with this liquigernie Alcohol Refractometer Professional Liquor Concentration Tester, Accurate Results, 0-80% Measure Range with Automatic Tem Easy to operate and calibrateYHUEGH Gemstone Polarizing Filter Gem Refractometer Gemstone Refractometer Kit Portable Gem Tester Gemstone polarizer / Jewellery identification instrument / table polarizer / crystal gem identification instrument / intGugxiom Gemstone Refractometer, Jewelry Refractometer, RHG181 1.30-1.81 Professional Gemstone Identification Gemstone Refractome High-quality ABS material: this gemstone tester is made of high-quality ABS material. This material is hard and wear-resBOWONG BOWONG 4-in-1 antifreeze refractometer ethylene glycol, propylene glycol, for automotive cooling fluid, Windshield washe 🚗【4-in-1】— If you notice that the battery of your your cars, solar plant or heat pumps is not durable anymore, DO NOT hTopHomer TopHomer Antifreeze Refractometer, ATC Automatic Temperature Compensation Alcohol Refractometer Sugar Content Measuring 【Easy to carry】Easy to use, sturdy design, small size and light weight, easy to carry around. 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