Environmental Refractometers

GAO Tek’s environmental refractometers are handheld devices used to measure the refractive index of a liquid sample, typically in the context of environmental analysis. The refractive index is a property that describes how light propagates through a substance, and it can provide valuable information about the composition or concentration of dissolved solids or compounds in the liquid. These refractometers work by measuring the degree to which light bends or refracts when passing through a liquid sample. By comparing this bending to known reference values, the refractometer can provide a quantitative measurement of the sample’s refractive index, which is then correlated to the desired parameter or property.

GAO’s environmental refractometers are composed of prism/sample well, light source, optical system, detector, refractive index scale, temperature compensation, casing/controls, and power source.

The other common names of refractometers are refractive index meters, refraction analyzers, refractometry devices, refraction measurement instruments, refractive index sensors, brix meters (commonly used for sugar concentration), salinity refractometers (specific to saltwater), fluid concentration analyzers, optical refractometers, solids content detectors, solution concentration meters, analytical refractometers, liquid density meters, optical concentration analyzers, concentration measurement instruments, optical density detectors, liquid quality analyzers, substance purity meters, dissolved solids sensors, optical property analyzers , optical concentration meters, solution density analyzers, fluid refractive index detectors, liquid property meters, solution quality analyzers, fluid composition sensors, dissolved material meters, optical solution testers, refraction measurement devices, concentration analysis instruments, substance purity detectors, optical liquid analyzers, solution content meters, liquid solute detectors, optical substance testers, fluid concentration analyzers, solution refractive index meters, optical solute meters, liquid composition detectors, and substance concentration analyzers.

Showing all 213 results

GAOTek Handheld Measuring Refractometer

SKU: GAOTek-WRFM-123
GAOTek handheld measuring refractometer cover plate was opened, and the detection prism was carefully wiped with a soft cloth.

GAOTek Alcohol Refractometer

SKU: GAOTek-WRFM-122
This Alcohol Refractometer has measurement accuracy of ±0.2 % brix, measurement range of 50 %, brix min div of 0 and power supply of one battery.

GAOTek Drinks Digital Refractometer

SKU: GAOTek-WRFM-121
This Drinks Digital Refractometer has brix min div of ±1 %, measurement range of ±1 %, accuracy Brix+ or -0.2 % of and brix range of 0 % to 53 %.

GAOTek Digital Wine Refractometer

SKU: GAOTek-WRFM-119
GAOTek Digital wine refractometer using linear CMOS sensor with high precision and great repeatability the exterior shell is made of high-performance waterproof and anti-shock material

GAOTek Handheld Auto Refractometer

SKU: GAOTek-WRFM-118
This Handheld Auto Refractometer has measurement accuracy of 0.0001 %, measurement range of 0 % to 95 % and battery supply of 1.5 V x 2 AAA.

GAOTek Dual Scale Refractometer

SKU: GAOTek-WRFM-117
This Dual Scale Refractometer has measurement accuracy of 0.0001 nd, brix min div of 0.1 %, measurement range of 0 % to 60 % and brix range of ±0.2 %.

GAOTek Alcohol Handheld Grape Wine Refractometer

SKU: GAOTek-WR-216
GAOTek  Alcohol Handheld Grape Wine Refractometer has a measuring range of 0% to 60%, brix min. div. of 1% and measurement accuracy of 0% to 60%.

GAOTek Digital Refractometer LCD Sugar Meter

SKU: GAOTek-WR-215
GAOTek digital refractometer LCD sugar meter can measure the sugar concentration in fruit, beverage and vegetables, can be used in beverages quality management, food industrial sector.

GAOTek Wine Concentration Alcohol Meter

SKU: GAOTek-WR-214
GAOTek Wine Concentration Alcohol Meter has a measurement range of alcohol 0% to 80%, brix min. div. of 0.1% and brix range of alcohol 0% to 80%.

GAOTek Handheld Digital Refractometer

SKU: GAOTek-WR-213
GAOTek Handheld Digital Refractometer has a measurement temperature resolution of 0.1 °C, power supply of 1 battery and storage temperature of 32 °F to 122 °F.

GAOTek Digital Refractometer Sugar Brix Meter

SKU: GAOTek-WR-212
GAOTek Digital Refractometer Sugar Brix Meter has an accuracy of ± 0.2% Brix, resolution of 0.1% Brix and battery of 2 x 1.2 V AA 2100 mAh NiMH.

GAOTek Portable Alcohol Content Meter Wine Refractometer

SKU: GAOTek-WR-211
GAOTek  Portable Alcohol Content Meter Wine Refractometer has a sample volume of 0.3 ml, power supply of 2 × AAA (1.5V) and response time of 3 s.

GAOTek Portable Meter Brix Refractometer

SKU: GAOTek-R-209
This GAOTek Portable Meter Brix Refractometer has a measurement accuracy 0.2 % Bx, brix min. div. 0.2 %, measurement range 0 % to 32 %.

GAOTek Handheld Alcohol Refractometer

SKU: GAOTek-R-208
This GAOTek Handheld Alcohol Refractometer has a brix range 0 % to 80 % liquor refractometer, measurement accuracy 1%, compensation of 10 °F to 30 °F.

GAOTek Automotive Antifreeze Refractometer

SKU: GAOTek-R-207
GAOTek automotive antifreeze refractometer optical refractometer with six scales is designed to measure coolants and antifreezes based on ethylene glycol or propylene glycol.

GAOTek Sugar Digital Brix Honey Refractometer

SKU: GAOTek-R-206
This GAOTek Sugar Digital Brix Honey Refractometer has a measurement accuracy 0.01, min. div. 0.20 %, brix range 0 % to 32 % Brix, weight 8.35 oz.

GAOTek Sugar Fruit Vegetables Juice Brix Refractometer

SKU: GAOTek-R-205
GAOTek Sugar Fruit Vegetables Juice brix Refractometer body of refractometer is designed with streamline shape.

GAOTek Brix Meter Refractometer

SKU: GAOTek-R-204
GAOTek brix meter refractometer series are based on the principle that the refractive indices of liquids change when the concentration changes.

GAOTek Handheld Brix Sugar Refractometer

SKU: GAOTek-R-203
GAOtek handheld brix sugar refractometer is developed for working with sugar related liquids such as fruit juice, soft drinks, wine, and honey to help monitor and control sugar concentrations in foods and beverages.

GAOTek Portable Honey Refractometer

SKU: GAOTek-R-202
This GAOTek Portable Honey Refractometer has a measurement accuracy ± 0.2 %, brix range 0.0 % to 90.0% and measurement range 1.3330 to 1.5177 nD.

GAOTek Portable Digital Refractometers

SKU: GAOTek-R-201
This GAOTek Portable Digital Refractometers has a measurement range 1.30000 to 1.70000, brix range is 0 % to 32 %, power supply 2 × AAA (1.5 V).

GAOTek Handheld Alcohol Refractometer

SKU: GAOTek-WRFM-110
GAOTek Handheld Refractometer Wine Fruit Sweetness Alcoholmeter is used for the rapid determination of the concentration or refractive index of sugar containing solutions and other non-sugar solutions.

GAOTek Digital Sugar Wine Refractometer

SKU: GAOTek-WRFM-109
This GAOTek Digital Sugar Wine Refractometer has resolution of 0.5 % brix, brix range of 0 % to 80 %, measurement accuracy of 0.5 and min div of 5 %.

GAOTek Digital Handheld Alcohol Wine Refractometer

SKU: GAOTek-WRFM-108
This GAOTek Digital Handheld Alcohol Wine Refractometer Has Measuring range of 0 % to 80 %, Resolution of 0.5 Measurement Accuracy of 0 % to 80 %.

GAOTek Professional Wine Refractometer

SKU: GAOTek-WRFM-107
This GAOTek Professional Wine Refractometer has Min 0.1 % Brix, Brix Range of 0 % to 35 %, battery of 3 V x 1.5 V AAA Accuracy of 0.2 % Brix.

GAOTek Handheld Alcohol Refractometer Hydrometer Wine

SKU: GAOTek-WRFM-106
This GAOTek Handheld Alcohol Refractometer Hydrometer Wine has material of alloy eyepiece, brix range of 0 % to 32 % and accuracy range of ± 0.1 %.

GAOTek Digital Refractometer Fruit Brix Meter Sugar

SKU: GAOTek-WRFM-105
This GAOTek Digital Refractometer Fruit Brix Meter Sugar has  min div of 0.1 % Brix, measuring range of 0 % to 22 % Brix precision of 0.2 % Brix.

GAOTek Alcohol Meter Digital Refractometer

SKU: GAOTek-WRFM-104
This GAOTek Alcohol Meter Digital Refractometer has measurement accuracy of 0.01, measurement range alcohol of 0 % to 80 % and brix min div of 0.1 %.

GAOTek Digital Wine Hydrometer Refractometer

SKU: GAOTek-WRFM-103
This GAOTek Digital Wine Hydrometer Refractometer has a power supply of 2 V × 1.5V, resolution alcohol of 0.1 % and resolution temperature of 0.1 °C.

GAOTek Digital Refractometer Sugar Wine Brix Meter

SKU: GAOTek-WRFM-102
This GAOTek Digital Refractometer Sugar Wine Brix Meter has resolution of brix 0.1%, brix range of 0 % to 55 % and accuracy of ±0.2 % brix ±1 °C.

GAOTek Digital Refractometer Wine Refractometer

SKU: GAOTek-WRFM-101
This GAOTek Digital Refractometer Fruit Wine Concentration T has a brix range 0 % to 55 %, resolution Brix 1 % and battery of 2 V x 1.2 V 2100 mAh.

GAOTek High-Precision Refractometer

SKU: GAOTek-RM-202
This GAOTek High-Precision Refractometer has a measurement range 0.0 % to 53.0 % Brix, accuracy ± 0.2 % brix, sample volume 0.3 ml, weight 100 g.

GAOTek Ophthalmology Auto Refractometer

SKU: GAOTek-RM-200
This GAOTek Ophthalmology Auto Refractometer has sphere range - 10.0 D to + 10.0 D, axis of astigmatism range 1° to 180° and print to Bluetooth.

GAOTek High Accuracy Portable Auto Wine Refractometer Product

SKU: GAOTek-WR-209
GAOTek high accuracy portable auto wine refractometer is an automatic digital instrument that can measure the sugar content of aqueous solutions.

GAOTek Digital Brix Meter Refractometer Beverage Wine

SKU: GAOTek-WR-207
This GAOTek Digital Brix Meter Refractometer Beverage Wine has a measuring range of 0% to 35%, resolution of 0.1% and display of 1.333 to 1.426.

GAOTek Alcohol Portable Digital Refractometer

SKU: GAOTek-WR-206
This GAOTek Alcohol Portable Digital Refractometer has min division of ±0.2%brix, measurement range of 0% to 73% Alcohol and power supply one battery.

GAOTek Alcohol Concentration Tester Refractometer

SKU: GAOTek-WR-205
This GAOTek Alcohol Concentration Tester Refractometer has a measuring range of 0.0% to 25%, accuracy of 0.2 %, and stand by time of 60 s.

GAOTek Digital Handheld Alcohol Wine Refractometer Meter

SKU: GAOTek-WR-204
GAOTek digital handheld alcohol wine refractometer meter using linear CMOS sensor with high precision and great repeatability

GAOTek Digital Refractometer Wine Beer

SKU: GAOTek-WR-202
This GAOTek Digital Refractometer Wine Beer has min division of 1.0%, brix range of 0% to 55% brix and high accuracy sugar concentration.

GAOTek Honey Refractometer

SKU: GAOTek-WR-201
This GAOTek Honey Refractometer for Wine Making has brix range of 0% brix to 95%brix, precision of ±0.1%, resolution of 0.05% and waterproof of IP67.

GAO TEK Handheld Auto Refractometer

SKU: GAOTEK-HAR-380
This Handheld Auto Refractometer has 1° to 180° of the axis of astigmatism, -10.0D+10.0D of the Sphere range and -0.5D+5.0D of the Cylinder range

GAO TEK Handheld Portable Auto Refractometer

SKU: GAOTEK-HPAR-379
This Handheld Portable Auto Refractometer has 1° to 180° of the Axis, AC 220 V 50 HZ of the power supply and 2.0 mm of the minimum pupil diameter.

GAO TEK Handheld Portable Autorefractometer

SKU: GAOTEK-HPAR-378
This GAOTEK Handheld Portable Autorefractómeterr has 1° to 180° of the axis range, -10.5D to +7.5D of the DS range and 37.4 in to 41.33 in of the work distance

GAO TEK Handheld Auto Refractometer

SKU: GAOTEK-AR-377
This Handheld Auto Refractometer with keratometer has 1s / eye of the data acquisition time, -5.0D to +5.0 of the Cylinder range and -10. OD ~+1O.OD of the Sphere range

Gao Tek Myopia Hyperopia Refractometer

SKU: GAOTEK-AR-376
This Handheld Auto Refractometer Myopia Hyperopia has -10.0D to +10.0D of the Brix range, -5.0D to +5.0 of the Cylinder range and 1° to 180° of the Axis of astigmatism range

GAO TEK Digital Handheld Auto Refractometer

SKU: GAOTEK-AR-113
This Digital Handheld Auto Refractometer has a measurement range of 0.11 in to 0.50 in, accuracy of ≥±0.05mm, and has infrared output.

GAO TEK Brix Refractometer

SKU: GAOTEK-AR-112
Cutting and cooling oils and lubricants are widely used in the electronic, mechanical and optical industry.

GAO Tek Brix Digital Refractometer

SKU: GAOTEK-AR-111
This Brix Digital Refractometer has 0 to 95% of the measurement range, 1.3000 to 1.7000 of the refractive index Nd and 0.1% of the brix.

GAOTek Handheld Auto Refractometer

SKU: GAOTek-WR-105
GAOTek handheld auto refractometer designed to precisely assess refractive errors in diverse populations using advanced technologies such as ultrasonic ranging, cross line, flashing light, and sound.

GAOTek Manual Or Digital Abbe Refractometer

SKU: GAOTek-WR-104
GAOTek manual or digital abbe refractometer this device can measure the refractive index nD, the average dispersion nF-nC of transparent or translucent liquid or solid substance and mass fraction (Brix) of cane sugar solution; wide utilization in the fields as petroleum, oil, pharmaceutical, paint, food, chemical and sugar refining industries, as well as in geological prospecting enterprises, colleges, universities and scientific research institutions.

GAOTek LCD Touch Screen Abbe Refractometer

SKU: GAOTek-WR-103
GAOTek LCD touch screen abbe refractometer high-resolution CCD detection system, automatic measurement to avoid human error, testing speed, good repeatability, large temperature control rang.

GAOTek Benchtop Digital Refractometer

SKU: GAOTek-WR-102
This Benchtop Digital Refractometer has a range of 0.0 % to 94.0 %, accuracy of ±0.1%, ±0.0002 nD, and supply ability of 3000 pieces per month.

GAOTek Digital Abbe Refractometer

SKU: GAOTek-WR-101
GAOTek digital abbe refractometer determine the refractive index nD average dispersion (nF-nC) of liquids or solids and the mass fraction of dry solids in aqueous sugar solutions, that is, Brix.

GAOTek Vision Refractometer

SKU: GAOTek-AR-123
This Vision Refractometer has a data acquisition time of 1 second per eye, an astigmatism axis range of 1° to 180° and sphere tolerance of ±0.5 D.

GAOTek Ophthalmic Refractometer

SKU: GAOTek-AR-122
This Ophthalmic Refractometer has a forehead-rest adjustment of 0.63 inches, a corneal vertex distance of 0.47 inches, and a P.D. adjustment of 2.14 inches x 2.95 inches.

GAOTek Ophthalmic Equipment

SKU: GAOTek-AR-121
This Opthalmic Equipment has a 25 W of power, a voltage range of 100 V to 240 V, and automatically measures optical lenses.

GAO TEK Portable Auto Refractometer

SKU: GAOTEK-ASOR-105
GAOTek portable auto refractometer is an innovative wavefront refractometer that precisely measures refractive errors of patients from 6 months old through adults within just seconds.  

GAO TEK Auto Refractometer Portable

SKU: GAOTek-ASOR-104
This Auto Refractometer Portable has measurement time of 1 s, a measuring distance of 38.735 inches to 40.06 inches, and a battery duration of 6 hours.

GAO TEK Digital Refractometer Brix

SKU: GAOTEK-ASOR-103
This Digital Refractometer Brix has measurement accuracy of 0.1%, measurement range of 0.0 to 94.0 % and temperature range of 50° F to 104° F.

GAOTek Benchtop Digital Auto Refractometer

SKU: GAOTEK-ASOR-102
This Benchtop Digital Brix Auto Refractometer has a measure time of 2 s, measurement accuracy of 0.1%, temperature of 50° Fۣ to 104° F.

GAOTek Portable Auto Refractometer

SKU: GAOTEK-ASOR-101
This Portable Auto Refractometer has a measurement time of 5 seconds to 15 seconds, measuring distance of 39 inches, andbattery life of 5 hours.

GAOTek Refractometer

SKU: GAOTek-BR-110
This Refractometer has a sphere range of -10.00 D to +10.00 D, cylinder range of -5.00 D to +5.00 D, step 0.25 D, and axis of 1 ° to 180 °, 1 °.  

GAOTek Digital Abbe Refractometer

SKU: GAOTek-BR-109
GAOTek digital abbe refractometer determination of the refractive index nD liquids or solids and sugar in aqueous solution of the percentage content of dry solid matter that is Brix, using visual target, backlit liquid crystal display, determination of Brix can be entered when the temperature correction, prism using hard glass, easy to wear and tear.

GAOTek Desktop Digital Refractometer

SKU: GAOTek-BR-108
This Desktop Digital Refractometer has a brix range of 0.0 % to 95.0%, an accuracy of 0.1%, and certificate of ISO 9001 PC connectable function.

GAOTek Digital Refractometer

SKU: GAOTek-BR-107
This Digital Refractometer has a refractive index of 1.3000 nD to 1.7000 nD, accuracy (nD) of ±0.0003, and dissolved solids brix of 0% to 95%.

GAOTek Digital Gem Refractometer

SKU: GAOTek-BR-106
GAOTek gem digital refractometer is for measuring the gem refractive index of an unknown gem stones, it is covering the full range from 1.40 to 3.00.

GAOTek Digital Refractometer

SKU: GAOTek-BR-105
This Digital Refractometer has a response time of 3 seconds, temperature display range of 32 °F to 104 °F, and power supply of 2 × AAA (1.5 V).

GAOTek Auto Refractometer

SKU: GAOTek-BR-104
This Auto Refractometer has a refractive measurement range of 1.300 to 1.700, measurement accuracy of 0.0002, and measurement range of 0% to 95%.

GAOTek Auto Handheld Refractometer

SKU: GAOTek-BR-103
This Auto Handheld Refractometer has a display of 5-inch LCD touch screen, axis of 1 ° to 180 °, and measuring distance of 0.39 in x 1.96 in.

GAOTek Accuracy Benchtop Brix Refractometer  

SKU: GAOTek-BR-102
This Accuracy Benchtop Brix Refractometer has a temperature of 32 °F to 203 °F, communication interface of RS 232, and power supply of 220 V ± 22 V.

GAOTek Automatic Refractometer

SKU: GAOTek-BR-101
This Automatic Refractometer has a measuring range of 1.3000 nD to 1.7000 nD, temperature range of 32 °F to 203 °F, and nD resolution of 0.0001.

GAOTek Salinity Brix Refractometer

SKU: GAOTek-RR-108
This Salinity Brix Refractometer has a measuring accuracy of Brix: ±0.1 %, a measurement temperature of 32 °F to 185 °F and a power of 12 V to 24 V DC.

GAOTek Auto Brix Digital Refractometer

SKU: GAOTek-RR-106
This Auto Brix Digital Refractometer has a measurement accuracy of 0.0005, measurement range of 0% to 95% and a refractive index of 1.30 to 1.70.

GAOTek Auto Digital Refractometer

SKU: GAOTek-RR-105
This Auto Digital Refractometer has a measuring range of brix 0.0% to 94.0%, measurement temperature of 32 °F to 104 °F and a power supply of 18650.

GAOTek Urea Refractive Index Measuring Meter

SKU: GAOTek-RR-104
GAOTek urea refractive index measuring meter refractometer adopts the principle of critical angle detection.

GAOTek IoT Remote Inline Process Refractometer

SKU: GAOTek-RR-103
GAOTek IoT remote inline process refractometer provides real-time Refractive Index (RI) measurements, ensuring precise detection of interfaces between cleaning solutions and products.

GAOTek Pipe Inline Process Refractometer

SKU: GAOTek-RR-102
This Pipe Inline Process Refractometer has a measure range of 0 % to 15 % ,0 % to 50 %, 90 %, temperature of 32 °F to 104 °F and max pressure 1 Mpa.

GAOTek Automatic Refractometer

SKU: GAOTek-IR-113
GAOTek Automatic Refractometer includes high performance CCD light-sensitive part, it can automatically measure the refractive index(nD) of transparent, translucent, dark, viscous and other types of liquid sample, also can measure sugar degree (Brix) of sugar solution.

GAOTek Digital ABBE Refractometer

SKU: GAOTek-IR-112
This Digital ABBE Refractometer has a temperature range of 32 °F to 122 °F, brix range of 0% to 95%, and a refractive index of 1.30 to 1.70.

GAOTek Beverage Digital Refractometer

SKU: GAOTek-IR-111
This Beverage Digital Refractometer has a temperature display range of 32 °F to 122 °F, accuracy of ±0.1%, and a refractive index of 1.30 to 1.70.

GAOTek Sugar Meter Refractometer

SKU: GAOTek-HPLR-110
This Sugar Meter Refractometer has a measuring range of 1.32 RI to 1.39 RI, power supply of 24 V DC and a process temperature of 32 °F to 140 °F.

GAOTek Inline Refractive Index Sensor

SKU: GAOTek-HPLR-109
GAOTek inline refractive index sensor is an inline digital refractometer that measures the refractive index of a liquid sample and provides a direct reading of highly accurate concentration values for a wide variety of water and process-related applications.

GAOTek Auto Brix Digital Refractometer

SKU: GAOTek-HPLR-108
This Auto Brix Digital Refractometer has a measurement accuracy of 0.0005, measurement range of 0% to 95% and  refractive index of 1.30 to 1.70.

GAOTek Insertion Refractometer

SKU: GAOTek-HPLR-107
This Insertion Refractometer has a measuring accuracy of Brix: ±0.1%, measurement temperature of 32 °F to 185 °F and a power of 12 V to 24 V DC.

GAOTek Processing Refractometer

SKU: GAOTek-HPLR-106
This Processing Refractometer has a measure range of 0% to 53%, accuracy of Brix of ±0.1%, and operating current of less than equal to 200 mA.

GAOTek Inline Brix Refractometer

SKU: GAOTek-HPLR-105
This Inline Brix Refractometer has a measure range of 0% to 15%, measurement accuracy of ±0.1%, and operating current of less than equal to 200 mA.  

GAOTek Concentration Analyzer Refractometer

SKU: GAOTek-HPLR-104
This Concentration Analyzer Refractometer has a measuring range of 1.32 RI to 1.39 RI, temperature of 32 °F to 140 °F, and power supply of 24 V.

GAOTek Liquid Concentration Detector

SKU: GAOTek-HPLR-103
GAOTek liquid concentration detector, is based on the principle of light refraction to detect the liquid concentration value, light in different concentrations of liquid produce different refractive index, and the sensor will receive the sensitive signal into the refractive index; Usually, the refractive index and concentration of liquids with different concentrations show a certain mathematical relationship.

GAOTek Laboratory Refractometer

SKU: GAOTek-HPLR-102
This Laboratory Refractometer has a measurement range of 0.0% to 94%, measurement temperature of 32°F to 104 °F, and sample volume of 0.4ml.  

GAOTek Binocular Refractometer

SKU: GAOTek-HPLR-101
This Binocular Refractometer has a measurement range of 1.30 nD to 1.70 nD, accuracy of ±0.0003 nD, and refractive index of 1.30 nD to 1.70 nD.

GAOTek Automatic Refractometer For Precise

SKU: GAOTek-WMR-109
This Automatic Refractometer for Precise measures ±0.0002 nD, features a digital thermometer and operates in monocular observation mode.

GAOTek Digital Display Sugar Meter

SKU: GAOTek-WMR-108
This Digital Display Sugar Meter ensures quick measurements with a sample volume of 0.3 ml, 3-second measurement time and 0.1% Brix resolution

GAOTek Refractometer For Accurate Refractive

SKU: GAOTek-WMR-107
This Refractometer For Accurate measures refractive index 1.3000 to 1.7000, provides ±0.0003 accuracy and determines dissolved solids Brix 0% to 95%.

GAOTek Digital Refractometer

SKU: GAOTek-WMR-106
This ABBE Digital Refractometer has a measurement range of 1.30000 to 1.72000 with an accuracy of ±0.0002 and can store data for 500 sets.

GAOTek High-Precision Sugar Brix Meter

SKU: GAOTek-WMR-105
This High Precision Sugar Brix Meter operates on 12 V to 24 V DC, has a maximum pressure of 1 MPa and consumes an operating current of ≤200 mA.

GAOTek Auto Digital Refractometer

SKU: GAOTek-WMR-104
This Auto Digital Refractometer features 45 W power, 4 GB data storage, a measurement resolution of 0.0001 and power supply 110 V to 240 V

GAOTek Digital Refractometer For Precise Sugar

SKU: GAOTek-WMR-103
This Precise Sugar Digital Refractometer has a maximum pressure of 1 MPa, IP 67 protection grade and operates with a current of ≤200 mA

GAOTek High Accuracy Digital Abbe Refractometer

SKU: GAOTek-WMR-102
GAOTek high accuracy digital abbe refractometer is a versatile and essential instrument for various industries.

GAOTek Automatic Digital Refractometer

SKU: GAOTek-WMR-101
This Automatic Digital Refractometer features 8 in color touch screen, 16 G data storage and versatile power supply 100 V to 240 V, 50/60 Hz 150 W.

GAOTek Digital Sugar Refractometer

SKU: GAOTek-WMR-304
GAOTek Digital Sugar Refractometer is determined by the average dispersion of ND (NF-NC) and the mass fraction of dry solids in sugar and aqueous solution.

GAOTek Portable Handheld Refractometer

SKU: GAOTek-WMR-303
GAOTek Portable handheld Refractometer has Prism size of 14 mm × 5 mm, wide of Input voltage of 100 V to 240 V and eyepiece diameter of 1.26 in. 

GAOTek Portable Refractometer

SKU: GAOTek-WMR-207
GAOTek Portable Refractometer is an automatic device equipped with high-performance linear CCD photosensitive components.

GAOTek Refractive Index for Scale Division Refractometer

SKU: GAOTek-WMR-209
This Refractive Index for Scale Division Refractometer has a testing scale of 1.35 to 1.85, accuracy of 0.002 and power supply of 100 V to 240 V.

GAOTek In-Line Refractometer for Beverage Measurement

SKU: GAOTek-WMR-204
This In-Line Refractometer for Beverage Measurement has min. division of ± 0.3 %, brix range of 0 % to 53 %, and measurement accuracy of ± 0.5 %.

GAOTek Refractometer Digital Refractometer

SKU: GAOTek-WMR-210
This Refractometer Digital Refractometer has a measurement range of 0% to 95%, refractive index of 1.3000 to 1.7000 nD and accuracy of ±0.00005.

GAOTek Digital Refractometer Or Auto Polarimeter

SKU: GAOTek-WMR-208
GAOTek Digital Refractometer or Auto Polarimeter feature "easy-to-use" and "easy-to-understand" ergonomic architecture.

GAOTek Optical Portable Handheld Auto Refractometer

SKU: GAOTek-RR-207
This Optical Portable Handheld Auto Refractometer has spherical power of -8.00 D to +8.00 D, axis of 0° to 180° and measurement time of <15 seconds.

GAOTek Digital Refractometer Meter

SKU: GAOTek-WMR-206
GAOTek Digital Refractometer Meter is also known as digital display brix meter, digital display concentration meter, fruit brix meter, is a mini digital display refractometer.

GAOTek Digital Refractometer for Liquid Measurement

SKU: GAOTek-WMR-205
This Digital Refractometer for Liquid Measurement has a measuring range of refractive index is 1.3000 to 1.7000, and sugar concentration value of 0.1.

GAOTek Refractometer Tester Measuring Instruments Tools

SKU: GAOTek-WMR-203
This Refractometer Tester Measuring Instruments Tools has measure parameters of Refractive index (nD), Brix (%), and operating current ≤ 200 mA.

GAOTek Automatic Refractometer Measuring Instrument

SKU: GAOTek-WMR-202
This Automatic Refractometer Measuring Instrument has a range of 1.3000 (nD) to 1.7000 (nD), resolution of 0.0001 nD and precision of ±0.0002.

GAOTek Measurement High Quality IR Refractometer

SKU: GAOTek-WMR-201
GAOTek Measurement High Quality IR Refractometer is usually installed as a bypass at the outlet of each circulation pump of the triple effect evaporator.

GAOTek Sugar Concentration Meter Refractor

SKU: GAOTek-WMR-307
Overview GAOTek sugar concentration meter refractor, is a compact and easily portable refractometer with automatic temperature compensation (ATC). Specifically designed

GAOTek Industrial Digital Refractometer

SKU: GAOTek-WMR-306
Overview GAOTek industrial digital refractometer is a compact and stylish optical instrument that employs digital technology based on refraction principles.

GAOTek Automatic Refractometer

SKU: GAOTek-WMR-305
Overview GAOTek automatic refractometer includes high-performance CCD light-sensitive part, it can automatically measure the refractive index (nD) of transparent, translucent,

GAOTek Portable Auto Refractor

SKU: GAOTek-MRR-109
This Portable Autorefractor has wavelength of 850 nm ± 20 nm, cylinder range of + 3 diopters, and output of the laser radiation of 150 μW to 200 μW

GAOTek Portable Auto Refractometer

SKU: GAOTek-MRR-108
This Portable Auto Refractometer has an examination response time of less than 1 second, axis of 1°to 180°, and display of 5 in colour LCD screen.  

GAOTek Digital Honey Refractometer

SKU: GAOTek-MRR-107
This Dgital Honey Refractometer has a measurement range of 0% to 90%, measurement accuracy of 0.2% Bx Min. Div. 0.2% Bx, and brix range of 0% to 90%.

GAOTek Portable Auto Refractometer

SKU: GAOTek-MRR-106
GAOTek portable auto refractometer can check the refractive error precisely for different groups of people using the ultrasonic ranging, cross line, flashing light and sound technology and then to find out the probably potential refractive problems.

GAOTek Digital Brix Refractometer

SKU: GAOTek-MRR-105
This Digital Brix Refractometer has brix range of 0% to 95%, power supply of 2 x AAA Batteries, and temperature measurement range of 32 ℉  to 104 ℉.

GAOTek Ophthalmology Portable Refractometer

SKU: GAOTek-MRR-104
GAOTek ophthalmology portable refractometer is an innovative wavefront refractometer that precisely measures refractive errors of patients from 6 months old through adults within just seconds.

GAOTek Portable Refractometer

SKU: GAOTek-MRR-103
GAOTek Portable Refractometer has AI-Optic, the groundbreaking vision screener, marries infrared photorefraction with AI's deep learning, achieving unparalleled accuracy.

GAOTek Economical Inline Refractometer

SKU: GAOTek-MRR-102
This Economical Inline Refractometer has a max pressure of 1 mpa, protection grade of IP65, and operating current of less than equal to 200 mA.

GAOTek Digital Automatic Refractometer

SKU: GAOTek-MRR-101
This Digital Automatic Refractometer has an operating current of less than equal to 200 mA, power of 12V DC to 24V DC, and max pressure of 1 MPa.

GAOTek Sugar Concentration Brix Refractometer

SKU: GAOTek-SR-320
This GAOTek Sugar Concentration Brix Refractometer has a brix measuring range 0 % to 35 %, brix precision 0.5 %, brix resolution 0.1 %.

GAOTek Sugar Digital Brix Meter

SKU: GAOTek-SR-319
This GAOTek Sugar Digital Brix Meter has a brix range 0 % to 55 %, power supply 2 x AAA batteries, brix resolution 0.1 %, sample size 0.5 mL

GAOTek Industrial Digital Refractometer

SKU: GAOTek-SR-317
GAOTek industrial digital refractometer is a compact and stylish optical instrument that employs digital technology based on refraction principles.

GAOTek Portable Sugar Refractometer

SKU: GAOTek-SR-316
This GAOTek Portable Sugar Refractometer has a measurement range 0 % to 90 %, measurement accuracy 0.1 % to 0.5 %, sample 3 mL, measure time 3 s.

GAOTek Brix Meter Digital Refractometer

SKU: GAOTek-SR-315
This GAOTek Brix Meter Digital Refractometer has a brix range 0 % to 50 %, brix resolution ± 0.2 %, refractive index accuracy ± 0.0003 nD.

GAOTek Manufacturer Handheld Refractometer

SKU: GAOTek-SR-314
This GAOTek manufacturer handheld refractometer has measurement range 0 % to 35 %, resolution 0.1 %, standby time 60 seconds, test time 3 s.

GAOTek Portable Sugar Brix Meter

SKU: GAOTek-SR-313
GAOTek portable sugar brix meter is a digital display high -precision optical instrument designed using the principle of refraction, which can be used to measure the sugar content  of liquids, such as fruits and beverages.

GAOTek Industrial Digital Refractometer

SKU: GAOTek-SR-312
This GAOTek industrial digital refractometer has a response time 4 seconds, a test range 0% to 32% and a precision ± 0.1 %, sample volume ≥ 0.05 ml.

GAOTek Digital Brix Refractometer

SKU: GAOTek-SR-311
This GAOTek Digital Brix Refractometer has brix range 0 % to 50 %, measurement accuracy 0.2, measurement range 0 % to 50 %, brix min. Div. 0.2.

GAOTek Sugar Concentration Brix Refractometer

SKU: GAOTek-SR-220
This GAOTek Sugar Concentration Brix Refractometer has a brix measuring range 0 % to 35 %, brix precision 0.5 %, brix resolution 0.1 %.

GAOTek Sugar Digital Brix Meter

SKU: GAOTek-SR-219
This GAOTek Sugar Brix Meter has a brix range 0 % to 55 %, power supply 2 x AA batteries, brix resolution 0.1 %, sample size 0.5 mL, weight 250 g.

GAOTek Economical Digital Refractometer

SKU: GAOTek-SR-218
GAOTek Economical Digital Refractometer can be used to test Brix of sugar-containing solutions, refractive index fast test. It is widely used in sugar production, beverages, agricultural production, industrial production, scientific research, etc.

GAOTek Industrial Digital Refractometer

SKU: GAOTek-SR-217
GAOTek Industrial Digital Refractometer is a compact and stylish optical instrument that employs digital technology based on refraction principles.

GAOTek Portable Sugar Refractometer

SKU: GAOTek-SR-216
This GAOTek Portable Sugar Refractometer has a measurement range 0 % to 90 %, measurement accuracy 0.1 % to 0.5 %, sample 3 mL, weight 100 g.

GAOTek Brix Meter Digital Refractometer

SKU: GAOTek-SR-215
This GAOTek Brix Meter Digital Refractometer has brix range 0 % to 50 %, brix resolution ± 0.2 % and refractive index accuracy ± 0.0003 nD.

GAOTek Sugar Meter Digital Refractometer

SKU: GAOTek-SR-214
GAOTek Sugar Meter Digital Refractometer with its wide measurement range (Brix 0 % to 53 %).

GAOTek Digital Sugar Refractometer

SKU: GAOTek-SR-213
GAOTek Digital Sugar Refractometer is determined by the average dispersion of ND (NF-NC) and the mass fraction of dry solids in sugar and aqueous solution.

GAOTek Portable Refractometer

SKU: GAOTek-SR-221
GAOTek Portable Refractometer is an automatic device equipped with high-performance linear CCD photosensitive components.

GAOTek Digital Sugar Refractometer

SKU: GAOTek-SR- 210
GAOTek Digital Sugar Refractometer is equipped with a high-performance linear CCD sensor.

GAOTek Sugar Concentration Meter Refractor

SKU: GAOTek-SR-210
GAOTek sugar concentration meter refractor is a compact and easily portable refractometer with automatic temperature compensation (ATC).

GAOTek Sugar Concentration Brix Refractometer

SKU: GAOTek-SR-209
GAOTek brix refractometer sugar concentration is a compact and aesthetically pleasing digital high-precision optical device, engineered based on the principles of refraction.

GAOTek Sugar Digital Refractometer

SKU: GAOTek-SR-208
This GAOTek Sugar Digital Refractometer has brix range of 0 % to 90 %, brix measurement range of 0 % to 90 % and brix resolution of 0.1 %.

GAOTek Digital Sugar Brix Meter

SKU: GAOTek-SR-207
This GAOTek Digital Sugar Brix Meter has resolution ratio brix ± 0.1%, measure accuracy brix ± 0.2%, sample capacity of 0.3 mL and power of 2x AAA.

GAOTek Portable Sugar Refractometer

SKU: GAOTek-SR-206
This GAOTek Portable Sugar Refractometer has measurement range of 0 % to 94 %, brix range of 0 % to 94 % and measurement accuracy of ± 0.2 %.

GAOTek Brix Meter Digital Refractometer

SKU: GAOTek-SR-205
This GAOTek Brix Meter Digital Refractometer has dissolved value brix of 0.1 %, measurement accuracy brix of ± 0.2 % and battery life of 72 h.

GAOTek Sugar Meter Digital Refractometer

SKU: GAOTek-SR-204
This Sugar Meter Digital Refractometer has brix range of 0% to 55%, full of electricity of about 20000 times and brix accuracy of ± 0.2 % /± 1 °C.

GAOTek Mooncake Concentration Refractometer

SKU: GAOTek-SR-203
GAOTek mooncake concentration refractometer is a handheld sweetness refractometer designed for the rapid assessment of the concentration of various substances such as fruit juices, soybean paste fillings, high-temperature syrups, and jams.

GAOTek Inline Process Refractometer

SKU: GAOTek-SR-202
This GAOTek Inline Process Refractometer has measure range of 0% to 53%, measurement accuracy brix of ± 0.3% and power of 12 V DC to 24 V DC.

GAOTek Digital Sugar Refractometer

SKU: GAOTek-SR- 201
GAOTek Digital Sugar Refractometer determines the refractive index nD average dispersion (nF-nC) of liquids or solids and the mass fraction of dry solids in aqueous sugar solutions, that is, Brix.

GAOTek Handheld Portable Auto Refractor Refractometer Vision Screener

SKU: GAOTek-OR-307
GAOTek handheld portable auto refractor refractometer machine is an innovative wavefront refractometer that precisely measures refractive errors of patients from 6 months old through adults within just seconds.

GAOTek Vision Screener Portable Refractometer

SKU: GAOTek-OR-306
This Vision Screener Portable Refractometer has DC (cylinder) range of 0.00 D to 3.00 D, axis range of 1° to 180° and gaze range of 0° to 20°.

GAOTek Portable Digital Refractometer

SKU: GAOTek-OR-305
This Portable Digital Refractometer has a power supply of 2 x AAA (1.5 V), minimum reading of 0.1, scale of brix (%), and range of 0 to 35.

GAOTek Portable Auto Refractometer Vision Screener

SKU: GAOTek-OR-302
GAOTek portable auto refractometer vision screener is lightweight and easy to carry.

GAOTek Salinity Refractometer Range

SKU: GAOTek-OR-256
This Salinity Refractometer Range has a measuring accuracy of 0.1 % salinity, 0.001 sg, accuracy 1 of 0.5%, accuracy 2 of 1° and accuracy 3 of 0.5°.

GAOTek Handheld Portable Refractometer

SKU: GAOTek-OR-255
This Handheld Portable Refractometer has measurement accuracy of 0.2% brix, measurement range of 0% to 32% brix and brix min. div. of 0.2.

GAOTek Digital Refractometer Portable

SKU: GAOTek-OR-213
This Digital Refractometer Portable has display of 7 in LCD touch screen, power supply of AC 110 V or 220 V ± 10% and frequency of 50 Hz to 60 Hz.

GAOTek Portable Refractometer Vision Screener

SKU: GAOTek-OR-212
This Portable Refractometer Vision Screener has an axis of 0° to 180°, measurement time of 5 s to 15 s and measuring distance of 100 cm, ±1.97 in.

GAOTek Handheld Auto Refractor Refractometer

SKU: GAOTek-OR-211
This Handheld Auto Refractor Refractometer has an axis range of 1° to 180° (Resolution is 1°), gaze of 0° to 20°, and time per measurement of 1 s.

GAOTek Autorefractometer Portable Refractometer

SKU: GAOTek-OR-205
GAOTek auto refractometer portable refractometer instrument is one of the indispensable common equipment in the petroleum industry, oil industry, pharmaceutical industry, paint industry, food industry, daily chemical industry, sugar industry and geological survey and other related factories, teaching and scientific research.

GAOTek Portable Table Refractometer

SKU: GAOTek-OR-207
GAOTek portable table refractometer is equipped with a high performance linear CCD sensor.

GAOTek Portable Touch Handheld Auto Refractometer

SKU: GAOTek-OR-206
GAOTek  Portable Touch Handheld Auto Refractometer has a range of 0° to 20°, display of 5 in touch screen and measuring distance of 1 m ± 5 cm. 

GAOTek Portable Auto Refractometer

SKU: GAOTek-OR-304
GAOTek portable auto refractometer determine the refractive index nD average dispersion (nF to nC) of liquids or solids and the mass fraction of dry solids in aqueous sugar solutions, that is, Brix .It

GAOTek Handheld Portable Auto Refractometer

SKU: GAOTek-OR-203
GAOTek handheld portable auto refractometer machine is an innovative wavefront refractometer that precisely measures refractive errors of patients from 6 months old through adults within just seconds.

GAOTek Refractometer Digital Handheld Portable

SKU: GAOTek-OR-202
This Refractometer Digital Handheld Portable has resolution of 0.1 % Brix, precision of 0.5 % Brix and environment temperature of 10 to 40. 

GAOTek Portable Meter Digital Viscometer Refractometer

SKU: GAOTek-OR-201
GAOTek Portable Meter Digital Viscometer Refractometer has measurement accuracy of 2%, temperature sensor of included and bluetooth output of NO. 

GAOTek Benchtop Multifunction Reactor

SKU: GAOTek-ORM-118
This Benchtop Multifunction Reactor has a time of 0 min to 120 min, power supply of 110 V to 250 V AC, and temperature range of 212 °F to 320 °F.

GAOTek Benchtop High-Speed Centrifuge Machine

SKU: GAOTek-ORM-107
GAOTek benchtop high-speed centrifuge machine comes with a 12 ml × 1.5 ml angle rotor (with 0.2 ml/0.5 ml adapter), which can be used for sample preparation, granulation, purification, extraction, concentration, phase separation, receptor binding, cell separation, virus separation and so on.

GAOTek Liquid Analyzer

SKU: GAOTek-ORM-105
This Liquid Analyzer has a temperature compensation of 32.18 °F, display screen of 6.5 in LED, and dissolved oxygen resolution of 0.01 or 0.1.

GAOTek Portable Digital Honey Refractometer 

SKU: GAOTek-ORM-104
This Portable Digital Honey Refractometer has a brix range of 0% to 90%, measurement accuracy of 0.2% Brix and measurement range of 0% to 90%.

GAOTek Digital Display Automatic Refractometer

SKU: GAOTek-ORM-103
This Digital Display Automatic Refractometer has a current of less than equal to 200 mA, power of 12 V DC to 24 V DC, and max pressure of 1 MPa.

GAOTek Auto Handheld Digital Refractometer

SKU: GAOTek-ORM-102
This Auto Handheld Digital Refractometer has a sample volume of 0.3 ml, power supply of 2 × AAA (1.5 V), and temperature range of 32 °F to 104 °F.

GAOTek Portable Water Quality Analyzer

SKU: GAOTek-ORM-101
GAOTek portable water quality analyzer is a portable multi-parameter water quality monitoring instrument used for testing water quality.

GAOTek Repair Inspection Benchtop Analyzer

SKU: GAOTek-ORM-116
This Repair Inspection Benchtop Analyzer has an operating temperature of 32 °F to 122 °F, input voltage of 12 V, and resolution of 1920 x 1200.

GAOTek Benchtop Oil Pressure Pump

SKU: GAOTek-ORM-115
GAOTek benchtop oil pressure pump is made up of top quality imported stainless steel and aluminum materials.

GAOTek Handheld Keratometer

SKU: GAOTek-ORM-114
GAOTek handheld keratometer is a handheld measuring device that calculates the radial curvature of the cornea.

GAOTek Handheld Refractometer Meter

SKU: GAOTek-ORM-113
This handheld refractometer meter has a power consumption of 2.5 W, temperature of surrounding of 50 °F to 86 °F, and charging time of 2 hr.

GAOTek Benchtop Fiber Optic Microscopes

SKU: GAOTek-ORM-112
GAOTek integrated benchtop fiber optic video microscopes, more high-definition, smaller size, more flexible mode of operation, easy to extend the features.

GAOTek Benchtop Laboratory Meter

SKU: GAOTek-ORM-111
This Benchtop Laboratory Meter has a calibration points of up to 6, temperature range of 23 °F to 266 °F, and pH range of -2.000 pH to 20.000 pH.

GAOTek Benchtop Turbidity Meter

SKU: GAOTek-ORM-110
GAOTek benchtop turbidity meter with the total suspended solids measurement mode, 2 to 7 points calibration, selectable 4 turbidity units.

GAOTek Waterproof Digital Refractometer

SKU: GAOTek-ORM-109
This Waterproof Digital Refractometer has measurement range of 1.3330 nD to 1.5290 nD, accuracy of ±0.0002 nd, and brix range of 0.0% to 94.0%.

GAOTek Ophthalmology Handheld Refractometer

SKU: GAOTek-ORM-108
This Ophthalmology Handheld Refractometer displays a 7" TFT LCD, measurement axis of 0° to 180° and corneal diameter of 0.07 into 0.47 in.

GAOTek Digital Portable Refractometer

SKU: GAOTek RM-148
This Digital Portable Refractometer has temperature range of 32 ℉ to 104 ℉, response time less then 3 seconds and 2 AAA batteries.

GAOTek Portable Refractometer

SKU: GAOTek RM-147
This Portable Refractometer has measuring range of 1.30 RI to 1.81 RI, accuracy of ±0.02 RI and built-in LED illumination.

GAOTek Auto Portable Refractometer

SKU: GAOTek RM-146
This Auto Portable Refractometer has dissolved solids brix range of 0% to 95%, accuracy of ±0.0002 and measures refractive index.

GAOTek Digital Portable Refractometer

SKU: GAOTek RM-144
This Digital Portable Refractometer has a measuring range of 3 mm to 12.908 mm, measurement time of 0.003s and 3 AA batteries.

GAOTek Portable Refractometer

SKU: GAOTek RM-143
GAOTek Portable Refractometer is a state-of-the-art diagnostic device designed to detect vision abnormalities quickly and accurately in patients ranging from 6 months to adults.

GAOTek Portable Screener Refractometer

SKU: GAOTek RM-142
This Portable Screener Refractometer has scope range of -10.5 D to +7.5 D, 5-in color LCD screen and 5 hours of battery life.

GAOTek Portable Refractometer

SKU: GAOTek RM-141
This Portable Refractometer has accuracy range of -0.039 in to 0.039 in, axis range of 1° to 180° and 0.0039 resolution range.

GAOTek Digital Portable Refractometer

SKU: GAOTek RM-140
This Digital Portable Refractometer has a DS range of -7.50 D to +7.50 D, accuracy of ±0.50D, 5-inch touch screen, and rechargeable lithium battery.

GAOTek Handheld Refractometer

SKU: GAOTek-RFM-117
GAOTek Handheld Refractometer can measure the sugar concentration in fruit, beverage, and vegetables, can be used in beverages quality management, food industrial sector, agricultural production scientific research.

GAOTek High Precision Digital Refractometer

SKU: GAOTek-RFM-111
GAOTek digital refractometer is a digital high-precision optical instrument designed by the principle of refraction. It is small and beautiful, easy to use, and has an LCD large-screen digital display.

GAOTek Portable Digital Auto Refractometer

SKU: GAOTek-RFM-113
GAOTek Portable Digital Auto Refractometer is a cutting-edge vision screener designed for patients of all ages.

GAOTek Portable Intelligent Refractometer

SKU: GAOTek-RFM-115
GAOTek Handheld Mini Vision Screener Refractometer is a cutting-edge device that stands out as one of the fastest and most objective vision screeners available.

GAOTek Handheld Mini Vision Screener Refractometer

SKU: GAOTek-RFM-114
GAOTek Handheld Mini Vision Screener Refractometer is a cutting-edge device that stands out as one of the fastest and most objective vision screeners available.

GAOTek Auto Refractometer Ophthalmic Equipment

SKU: GAOTek-RFM-120
GAOTek Auto Refractometer Ophthalmic Equipment can check the refractive error precisely for different groups of people using the ultrasonic ranging, cross line, flashing light and sound technology and then to find out the probably potential refractive problems.

GAOTek CCD Light-Sensitive LCD Screen Automatic Refractometer

SKU: GAOTek-RFM-118
GAOTek CCD Light-Sensitive LCD Screen Automatic Refractometer includes high-performance CCD light-sensitive part, can accurately and efficiently process sample analysis tests through unique signal acquisition, analysis, and processing technology.

GAOTek Portable Digital Auto Refractometer

SKU: GAOTek-RFM-112
GAOTek Portable Digital Auto Refractometer is a cutting-edge vision screener designed for patients of all ages.

GAOTek Optometry Auto Refractometer

SKU: GAOTek-RFM-119
GAOTek Optometry Auto Refractometer uses the ARM processor and the latest domestic image processing thus making the system fast and the image clear.

GAOTek Portable Automatic Refractometer Test Equipment

SKU: GAOTek-RFM-116
GAOTek Portable Automatic Refractometer Test Equipment can efficiently and accurately measure the refractive index (nD) of various liquids such as transparent, translucent, dark, viscous and the mass fraction of sugar solution (Brix).

GAOTek Refractometer with Wide Measuring Range (3 Parameters)

SKU: GT00XN00ZO
This Refractometer with Wide Measuring Range (3 Parameters) is a precise optical device specially designed to determine the water content in honey with three-scale measurement (water, Baume and Brix) which provides direct reading.

GAOTek Refractometer with Wide Measuring Range (Alarm Function)

SKU: GT00XN00ZP
This Refractometer with Wide Measuring Range (Alarm Function) is an optical refractometer which measures the brix concentration, refractive index or other parameters.

GAOTek Coolant Refractometer (High Accuracy, Alarm Function)

SKU: GT00XN00ZQ
This ‘Coolant Refractometer (High Accuracy, Alarm Function)’ is a digital refractometer which accurately measures the freezing point of substances such as propylene/ethylene glycol.

GAOTek Wine Refractometer (High Accuracy, Auto Shut Off)

SKU: GT00XN00ZR
This Wine Refractometer (High Accuracy, Auto Shut Off) is specially designed to measure the sugar contents in wine with four scale parameters Mass SW % (Brix), Probable Alcohol (AP), Oechsle (German) and KMW (Babo).

GAOTek Salinity Refractometer (High Precision, Auto Shut Off)

SKU: GT00XN00ZS
This Salinity Refractometer(High Precision, Auto Shut Off) is used to measure brix concentration, salinity and refractive index and works within a temperature range of 32°F to 104°F and has an automatic shut off function after 3 minutes.

GAOTek Refractometer with Wide Measuring Range (Auto Shut Off)

SKU: GT00XN00ZT
This Digital Refractometer with ‘Wide Measuring Range (Auto Shut Off)’ is used to measure specific gravity and refractive index and works within a temperature range of 32 °F to 104 °F .

GAOTek Refractometer with Alarm (High Precision, Auto Shut Off)

SKU: GT00XN00ZU
This portable ‘Refractometer with Alarm (High Precision, Auto Shut Off)’ is designed for clinical applications such as measuring specific gravity of urine, total protein in serum or plasma, and refractive index.

GAOTek Refractometer with Wide Measuring Range (High Accuracy)

SKU: GT00XN00ZW
This Refractometer with Wide Measuring Range (High Accuracy) is designed to measure the sugar content of an aqueous solution from 0 % to 95 % Brix.

Refractometer With Alarm (High Resolution/Accuracy)

SKU: GT00XN00ZY
GAOTek Refractometer with Alarm measures temperature for liquid refraction with high resolution and accuracy and supports alarm for low voltage

Light-Weight Refractometer (Small Size, Energy Efficiency)

SKU: GT00XN00ZZ
GAOTek Light-Weight Refractometer is a small-sized device for measuring solution’s refraction index of under different temp and saves energy (over 8000 times).

GAO Tek’s environmental refractometers meters have the following functions:

  • Determination of parameters: GAO’s environmental refractometers can help determine various parameters such as salinity in water bodies, the concentration of dissolved solids in soil or plant sap, or quality control of beverages and industrial fluids.
  • Portable and rapid analysis: Our environmental refractometers are handheld devices that allow for on-site or field measurements, providing quick and convenient analysis without the need for complex laboratory equipment.
  • Quality control and monitoring: GAO’s environmental refractometers are utilized to ensure quality control in various industries, including food and beverage production, agriculture, environmental monitoring, and chemical manufacturing, by monitoring specific parameters and ensuring consistency and compliance.
  • Temperature compensation: Our environmental refractometers incorporate temperature compensation mechanisms to account for temperature variations and provide accurate measurements regardless of temperature fluctuations.
  • Measurement of refractive index: Our environmental refractometers measure the refractive index of a liquid sample, which provides information about its composition or concentration.

GAO’s environmental refractometers are rugged, versatile, and precision measurement instruments. They comply with applicable industry standards such as ASTM (American Society for Testing and Materials) E1269-11, USP (United states pharmacopeia) general chapter<781>, AOAC (association of official analytical chemists) official method 934.01, and ISO 5725-1:1994.

Our environmental refractometers help our customers comply with relevant U.S. government regulations such as:

  • Good Manufacturing Practices (GMPs)
  • Occupational Safety and Health Administration (OSHA)
  • Environmental Protection Agency (EPA)
  • National Institute of Standards and Technology (NIST)

Our environmental refractometers help our clients in complying with relevant Canadian government regulations such as:

  • Canadian Food Inspection Agency (CFIA)
  • Health Canada
  • Environment and Climate Change Canada (ECCC)
  • Canadian General Standards Board (CGSB)
  • Canadian Centre for Occupation Health and Safety (CCHOS)

GAO’s environmental refractometers have the following applications:

  • Chemical and Pharmaceutical Industry: GAO’s environmental refractometers are used in the chemical and pharmaceutical industries to determine the purity of substances. The refractive index of a substance is related to its purity, so by measuring the refractive index, the purity of a substance can be assessed. This information is important for quality control purposes and for ensuring that the substance meets specific standards.
  • Petroleum Industry: Our environmental refractometers are used in the petroleum industry to determine the quality of fuels and lubricants. The refractive index of a substance is related to its density, which is an important parameter for determining the quality of petroleum products. They can also be used to detect the presence of water or other impurities in petroleum products.
  • Gemstone Industry: GAO’s environmental refractometers are used in the gemstone industry to determine the authenticity of gemstones. Each gemstone has a unique refractive index, so by measuring the refractive index, the authenticity of a gemstone can be verified. Refractometers are also used to determine the quality and value of gemstones.
  • Veterinary Medicine: Our environmental refractometers are used in veterinary medicine to measure the concentration of various substances in animal body fluids, such as blood and urine. This information is important for diagnosing and monitoring various health conditions in animals.
  • Agriculture: Our environmental refractometers are used in agriculture to measure the sugar content in fruits and vegetables. This information is used to determine the optimal time for harvesting crops and for ensuring the quality of the final product.

Our environmental refractometers can be shipped overnight within the continental U.S. and Canada, and can be shipped globally.