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Refractometers (42 Products)

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  1. TestSafe TS-RF-BRIX04 Portable Brix Refractometer - In case
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    TestSafe TS-RF-BRIX04 Portable Brix Refractometer
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    £10.97 £9.14
    • Compact, rugged refractometer
    • Integrated measurement eyepiece
    • Brix scale: 28-62%
    18 Reward Points
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    SKU: TS-RF-BRIX04
  2. TestSafe TS-RF-BRIX03 Portable Brix Refractometer - In case
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    TestSafe TS-RF-BRIX03 Portable Brix Refractometer
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    £10.97 £9.14
    • Refractometer with a Brix range of 58-90%
    • Ideal for measuring sucrose during honey production and beekeeping
    • Robust, compact design with integrated measurement eyepiece
    18 Reward Points
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    SKU: TS-RF-BRIX03
  3. TestSafe TS-RF-COOL02 Portable Coolant Refractometer - In case
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    TestSafe TS-RF-COOL02 Portable Coolant Refractometer
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    £11.16 £9.30
    • Measure the specific gravity of coolant oils
    • Determine the freezing point of coolant fluids
    • Ergonomic, rugged design with an integrated eyepiece
    18 Reward Points
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    SKU: TS-RF-COOL02
  4. TestSafe TS-RF-WINE03 Portable Wine Refractometer - In case
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    TestSafe TS-RF-WINE03 Portable Wine Refractometer
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    £11.24 £9.37
    • Ideal for monitoring alcohol production during winemaking processes
    • Automatic temperature compensation function
    • Two alcohol ranges: 0-60% (1% V/V) and 60-80% (2.5% V/V)
    18 Reward Points
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    SKU: TS-RF-WINE03
  5. TestSafe TS-RF-WINE01 Portable Wine Refractometer - In case
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    TestSafe TS-RF-WINE01 Portable Wine Refractometer
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    £11.24 £9.37
    • Improve the efficiency and accuracy of wine production
    • Features Brix, Oeschle and Babo scales
    • Automatic temperature compensation
    18 Reward Points
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    SKU: TS-RF-WINE01
  6. TestSafe TS-RF-COOL03 Portable Coolant Refractometer - In case
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    TestSafe TS-RF-COOL03 Portable Coolant Refractometer
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    £11.52 £9.60
    • Measure the specific gravity and freezing point of coolants
    • Ergonomic design with an integrated eyepiece
    • Ideal for automotive applications
    18 Reward Points
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    SKU: TS-RF-COOL03
  7. TestSafe TS-RF-SAL03 Portable Salinity Refractometer - In case
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    TestSafe TS-RF-SAL03 Portable Salinity Refractometer
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    £23.99 £19.99
    • Measures salinity between 0 and 100%
    • Brix range: 0-10%
    • Measures specific gravity from 1.0 to 1.070sg
    38 Reward Points
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    SKU: TS-RF-SAL03
  8. TestSafe TS-RF-SAL02 Portable Salinity Refractometer - In case
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    TestSafe TS-RF-SAL02 Portable Salinity Refractometer
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    £23.99 £19.99
    • Measure salinity between 0 and 10%
    • Automatic temperature compensation
    • Ideal for measuring the amount of salt dissolved in marine aquarium/ fish tank water
    38 Reward Points
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    SKU: TS-RF-SAL02
  9. TestSafe TS-RF-SAL01 Portable Salinity Refractometer - In case
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    TestSafe TS-RF-SAL01 Portable Salinity Refractometer
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    £23.99 £19.99
    • Measure salinity between 0 and 100%
    • Measure specific gravity between 1.0 and 1.070sg
    • Ideal for marine aquarium applications
    38 Reward Points
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    SKU: TS-RF-SAL01
  10. TestSafe TS-RF-PROT02 Portable Protein Refractometer - In case
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    TestSafe TS-RF-PROT02 Portable Protein Refractometer
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    £23.99 £19.99
    • Measure serum protein between 2 and 14g/dl
    • Refractive index range: 1.0-1.060RI
    • Ideal for veterinary applications 
    38 Reward Points
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    SKU: TS-RF-PROT02
  11. TestSafe TS-RF-PROT01 Portable Protein Refractometer - In case
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    TestSafe TS-RF-PROT01 Portable Protein Refractometer
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    £23.99 £19.99
    • Measure the serum protein of blood plasma between 0 and 12g/dl
    • Measure specific gravity of urine and blood between 1.0 and 1.050sg
    • Ideal for veterinary applications 
    38 Reward Points
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    SKU: TS-RF-PROT01
  12. TestSafe TS-RF-BRIX02 Portable Brix Refractometer - In case
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    TestSafe TS-RF-BRIX02 Portable Brix Refractometer w/ Specific Gravity
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    £23.99 £19.99
    • Portable, robust refractometer with integrated measurement eyepiece
    • Brix scale: 0-32%
    • Specific gravity range: 1-1.120
    38 Reward Points
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    SKU: TS-RF-BRIX02
  13. TestSafe TS-RF-WINE02 Portable Wine Refractometer - In case
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    TestSafe TS-RF-WINE02 Portable Wine Refractometer
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    Discontinued
    • Brix scale: 0-40%
    • Potential alcohol: 0-20%
    • Easy-to-use
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    Call 01642 931 329
    SKU: TS-RF-WINE02
  14. TestSafe TS-RF-BRIX01 Portable Brix Refractometer - In case
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    TestSafe TS-RF-BRIX01 Portable Brix Refractometer
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    £34.80 £29.00
    • 0-32% Brix scale
    • Robust, portable design
    • Integrated measurement eyepiece
    58 Reward Points
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    SKU: TS-RF-BRIX01
  15. TestSafe TS-RF-COOL01 Portable Coolant Refractometer - In case
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    TestSafe TS-RF-COOL01 Portable Coolant Refractometer
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    £58.80 £49.00
    • Measure the concentration of coolant oils
    • Measure the freezing point of coolant oils
    • Temperature range of up to 5°C / 10°F
    98 Reward Points
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    SKU: TS-RF-COOL01
  16. TPI 395 Handheld Refractometer - Kit
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    TPI 395 Handheld Refractometer
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    £59.40 £49.50
    • Suitable for use in testing propylene glycol, ethylene glycol and battery fluids
    • Cushioned eye piece
    • Smooth focus adjustment
    98 Reward Points
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    SKU: TPI-395
  17. Extech RF10 Portable Sucrose Brix Refractometer - In Case
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    Extech RF10 Portable Sucrose Brix Refractometer (0 to 32%)
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    £63.61 £53.01
    • The prism and lens on the device has a focus adjustment setting
    • Easy to operate, compact and has an easy-to-read scale built in
    • Comes with a calibration screwdriver, plastic pipette and calibration solution
    106 Reward Points
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    SKU: RF10
  18. Kern ORA Analogue Sugar Brix Refractometer with Accessories
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    Kern ORA-B Analogue Sugar Brix Refractometer
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    As low as £67.20 £56.00
    • Choice of model with different measurement ranges
    • Designed for use in measuring brix (sugar) content
    • Analogue style refractometer with integrated eyepiece
    134 Reward Points
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    SKU: KERN-ORA-SUG
  19. Kern ORA-U Analogue Industrial/Automotive Refractometer with Accessories
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    Kern ORA-U Analogue Industrial/Automotive Refractometer
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    As low as £71.41 £59.51
    • Industrial-grade analogue refractometer for ethylene, propylene, fountain solution, battery fluid and more
    • Choice of model with different functionality
    • Automatic temperature compensation available on some models
    142 Reward Points
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    SKU: KERN-ORA-INDUSTRY
  20. Kern ORA-S Analogue Salinity/Salt Refractometer with Accessories
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    Kern ORA-S Analogue Salinity/Salt Refractometer
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    As low as £71.41 £59.51
    • Specifically designed for measuring salt content
    • Analogue refractometer with comfortable eyepiece
    • Choose your model! Different variations with different measurements available
    142 Reward Points
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    SKU: KERN-ORA-SALT
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About Refractometers

As light bends through a substance, it can be then analysed using a refractometer to determine the exact properties, form and concentration of that specific substance.

Refractometers are generally used in different forms of research such as gemmology, where measuring the way light bends through a particular gemstone allows the user to identify both the type of gem and the overall purity of the stone.  They’re also used quite commonly in the marine industry where identifying the way the light moves throughout the water in an aquarium allows testers to identify the salinity and specific gravity of the water, creating the perfect environment for marine life to live comfortably.

Most refractometers also include a thermometer as standard. This is because the refractive index (essentially the way the light is bending through a substance) can be affected by changes in temperature. Thanks to built-in thermometers – often with automatic temperature compensation – it is easy to maintain completely accurate testing.

The devices come in many different forms. While we stock mainly handheld and digital handheld products, there are also laboratory (Abbe) refractometers and inline process refractometers available on the market too.

The Abbe model is bench-mountable and used primarily in the laboratory for incredibly high-precision refraction testing.  Inline process models are generally used inside fluid storage containers such as pipes/tanks to constantly monitor the refractive index of liquids passing through that particular area. This is extremely important in the processing industry as it depends entirely on substances being of the right consistency/type to produce multiple things such as paper, food, sugar and medicines.

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