JWII handheld refractometer

Handheld digital refractometer for everyday use with reliable and repeatable results

A truly portable digital refractometer for measuring liquid and paste concentration in seconds

Main features

  • Ultra portable 
  • Lightweight
  • Pocket style
  • Competitively priced
  • X Stock Sydney shipping within 24 hours
  • High accuracy 
  • Repeatable and reliable
  • Robust design
  • Fully automatic analysis with no human error
  • Ergonomic design for ease of use
  • Battery operated

The Industry Standard in Handheld and Pocket Refractometers

JWII have been in the business of Refractometers since 1982, with our latest portable refractometer we can offer our clients an ergonomically designed portable system that is modern not only in design but in technology.

Refractometers are precise optical instruments that can determine the concentration of an aqueous solution by measuring its refractive index. These can be used for liquid concentration strength, and are typically used in the measurement of liquids, gels, or slurries.

Wide Range and high Accuracy

The JWII pocket refractometer measures the Brix concentration to an accuracy of 0.2 brix over a range of 0-55 brix with temperature compensation and meets the needs of even the most demanding applications. The repeatability and reliability of the system has been tested against some of the world leading laboratory refractometers and it has proven to be robust and reliable.

This Digital Refractometer is not only a Sugar Analyser and Sugar Refractometer but is a portable liquid concentration analyser for any bi-component liquid. This Lab Refractometer can display in brix Concentration over the range of 0-55Brix with an accuracy of 0.2 Brix.

Automatic digital analysis eliminating human error

There are many manual optical refractometers on the market, but most are reliant on the operator to use his own judgement on the Brix level. The JWII pocket refractometer is fully automatic and uses digital technology to offer a level of accuracy and repeatability usually seen in refractometers that are at a far higher price point.

Reliable and robust

The range of products are durable and maintenance free providing a brix and sucrose measurement that can be relied on in the harshest of industrial environments. These are ideal for measuring the total dissolved solids content of a liquid or semi-solid food such as fresh fruit, beverages, and sauces.

Easy of operation

The handheld refractometer is extremely easy to use, you simply open the basin flap, place the liquid in the measuring basin using a pipette, close the basin flap and press start. The result will be displayed in under 5 seconds.

Suitable for a wide variety of applications

There are many reasons to use a portable refractometer that can be used in a wide variety of applications. Testing the ripeness of fruit such as tomatoes and grapes is easy by simply squeezing a small amount of juice directly into the JWII refractometer prism and pressing start you will have a result in seconds. Products like beverage and honey are also simple applications the unit can handle easily.

Industrial applications such as cutting fluid and cooling oil concentration can also be measured by placing a small amount on the measurement prism the scale can be used to see if the water-soluble oil is at the right concentration level.

Concentration of products like coffee liquor, tea, chocolate, milk, sugar, caramel, condensed milk, jam, honey, soft drinks, beer, juices are just a few of the food and beverage products the unit can analyse.

Backed but our service and support guarantee

We offer full support in Australia for the JWII handheld refractometer and have the device available for immediate shipping you can buy with confidence that JWII who are experts in the field or refractometers are in Australia with a full team of support staff to assist you.

When it comes to Brix Meters, nD Analysers and nD refractometers, JWII is a quality brand you can trust.

Great price and fast shipping

You can purchase your JWII handheld refractometer here for the amazing price of $149 with free shipping Australia wide. Ultra fast same day or next day delivery with items in stock at our Sydney warehouse.


  • Measuring range: 0.0-55Brix(%)
  • Resolution: 0.1Brix(%)/0.1°C
  • Accuracy: ±0.2Brix(%)/1°C
  • Temperature compensation: 10 – 80°C
  • Operating temperature: 10 – 40°C
  • Sample volume: «0.2mL(3~5drops)
  • Measure time: «3S
  • Battery: 2*AAA
  • Dimension: 154X52X44mm
  • Weight: 140g

Typical handheld refractometer questions answered by our experts

A handheld refractometer is normally used when a measurement of liquid concentration is required. Hand held refractometers have a wide variety of uses from domestic use for home brewers and beverage manufacture, through to industrial process and laboratory applications. Handheld refractometers provide a quick and easy way to measure your liquid concentration or the sweetness of the liquid known as the Brix level. Handheld refractometers come in a variety of types from very basic optical units to fully digital versions.

A refractometer is a device for measuring liquid concentration, it uses light to make this measurement. An LED sends the light into a sapphire or balf prism. The prism is in contact with the liquid and the light from the LED is reflected back from the liquid surface like a mirror. The angle of the reflected light will change depending upon the liquid concentration. This reflected angle is called the angle of refraction. A refractometer uses an optical scale where a shadow is seen with the eye on basic versions, through to more sophisticated refractometers using CCD to capture the returned light from the liquid and electronically calculating the concentration.

The difference between these 2 types of refractometer would be the accuracy and application of the refractometer. A handheld refractometer is typically small and portable and would be a lower accuracy device used for small scale manufacture where a quick measurement is needed but accuracy is not the primary focus. An Abbe refractometer or benchtop refractometer would be used in a fixed position in a central room or laboratory and samples would be brought to the unit for testing. Testing with an Abbe refractometer in a controlled environment would give greater accuracy and repeatability. Abbe or benchtop refractometers come in various formats and accuracies.

Traditional handheld refractometers use the human eye to determine the concentration level. A drop of the liquid is placed on the measurement surface. The device is held up to the light or an illuminator is moved over the measurement surface. You look through the eyepiece and take your reading from the point where the light and dark shadow intersect on the scale.

Refractometers vary dramatically in type and price. They are offered in very basic handheld types, to digital hand held, portable, benchtop, inline process refractometers. These all come with varying accuracies and quality. Prices can vary from a few dollars to thousands of dollars with a typical basic low accuracy handheld refractometer costing $100 to a sophisticated in-line digital refractometer costing upwards of $15,000.00. The type would normally be selected based on the application and accuracy required.

Distilled water can be used to check a refractometer's zero point. Distilled water should be 0 Brix or 1.3330nD on the scale. Another quick way to check a refractometer's reading at a higher level is to use a regular soft drink which is typically 10.5 Brix as a quick check. If greater accuracy is needed water / sugar solutions can be mixed by weight using an accurate weight scale in various concentrations and compared to the refractometer. If accurate calibration is required then you can purchase certified sucrose and refractive index solutions from our company.

The best way to zero a refractometer is to use distilled water. Clean the measurement surface. Place a drop of distilled water on the measurement surface or prism and read. It should show 0 Brix or 1.3330 nD.

If the refractometer is a basic manual version you should measure the interface between light and shadow on the device as the reading. If the device is a digital version it will display the reading typically in Brix (% sugar concentration) or nD (Refractive Index)

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