Laboratory refractometers are essential scientific instruments that measure the refraction of light through different substances. Refractometers work on the basis of Snell’s law, which states that different substrates refract light to varying degrees. These devices are frequently used in areas of study such as chemistry, physics, biology, and even in industrial sectors such as food and pharmaceuticals. In the field of chemistry, these instruments assume critical roles in the handling of chemical samples.

Whether for determining the concentration of solutions, for identifying unknown substances or for monitoring the process of chemical reactions, this instrument is irreplaceable. Its precision and efficiency in sample handling are valued by chemistry professionals, making it an essential instrument in any chemical laboratory.

Types of Refractometer a Lab May Need

Digital Refractometer

  • Digital Refractometer: analyzes substances such as lactose, glucose, among others, its results are accurate, fast and safe, they have a screen that shows the temperatures and the results of each measurement, specialized in measuring samples difficult to rea.d as fruit pupa or industrial resins

Optical Refractometer

The Kalstein hand-held optical refractometer measures the density of sugars in the solution and gives you an instant gravity reading at any point during the boil, or run off from the mash. You do not need to convert the reading from Brix to specific gravity or do an adjustment for temperature. Great for quick and frequent check on the gravity of your running or while sparging, and also for those who do not like to deal with the temperature compensation necessary with a hydrometer. Unlike a hydrometer, it only requires a very small amount sample, about 2-3 drops of sample only.


In Kalstein you can find the Ideal Refractometer for your Laboratory

There are countless models, so it is normal that you do not know which Refractometer to buy to meet your needs. At Kalstein, we evaluate you to find what you're looking for.

Salinity Digital Refractometer YR05953 // YR05960

This model is used for measuring salinity of solution such as sodium chloride, sea water and refractive index of measured solution...


Honey Refractometers YR05885 – YR05886

This models can also be used for controlling the concentration of various industrial fluids such as cutting lubricants...


Digital Clinical Refractometer YR05966 // YR05968

This clinical digital refractometer is mainly use for animals/pets and humans’ serum protein & urine specific gravity. It’s good tools for...


ATC Milk Refractometers YR05937 – YR05938

imply use provided pipette to apply couple of milk drops on the lens, the concentration is instant showing on the eye...


Our best-selling Refractometer

The Honey Refractometers are designed to work with sugar related liquids such as high sugar content, honey, jelly, jam and syrup to help monitor and control sugar concentrations in foods and beverages. Another function is for checking the “ripeness” of fruit in the field. It can verify product quality after harvesting and/or controlling concentrations during processing and packaging and it provides critical information to ensure quality of every product.
This models can also be used for controlling the concentration of various industrial fluids such as cutting lubricants and flux rinsing compounds.


Guides for you to become an expert in Refractometer

Refractometers are essential products in a laboratory, we provide guides and recommendations for better use, so you can work as an expert.

Use of the Refractometer for Brewing Beer

For optimal results, general considerations for easy handling that provides reliable readings should be taken into account, such as: the...

What are refractometers used for in a Laboratory?

This device allows us to measure the density of liquids, gases and solids from the beginning of the refraction of light originating in the...

How to keep your Refractometers in good condition?

Refractometers were invented by Dr. Ernst Abbe, German / Austrian scientist in the early twentieth century. The Abbe refractometer is the...

Scientific Applications of Laboratory Refractometers in the Handling of Chemical Samples

Laboratory refractometers offer a number of advantages to chemistry experts. Due to their measurement accuracy, refractometers allow chemists to reduce experimental errors and improve results...

Frequently asked questions about Refractometer

To know the price of the Refractometer we invite you to send us an email with your request through the contact form.

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