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 1–24 of 28 results

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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 (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 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 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.

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.