Atago Clinical, Sports Special Scale PAL Series Refractometers

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SKU Measurement Range Accuracy Model Weight (In Grams) Price (excluding VAT) Availability Qty To Purchase
Atago Clinical, Sports Special Scale PAL Series Refractometers 4442 Cesium Chloride : 0.0 to 60.0% Temperature : 10.0 to 40.0゚C Cesium Chloride : ±0.4% Temperature : ±1゚C PAL-42S 100 £370.00 1 + -
Atago Clinical, Sports Special Scale PAL Series Refractometers 4453 Copper Sulfate (Concentration) : 0.0 to 20.0% Temperature : 10.0 to 40.0゚C Copper Sulfate (Concentration) : 0.1% Temperature : 0.1゚C PAL-53S 100 £370.00 1 + -

Pocket >> Palm >> Perform
IoT Supported
With NFC Technology

Pocket Refractometer

Pocket Refractometer




Technical Specifications

Model PAL-42S  PAL-53S  
Cat No 4442  4453   
  PAL-42S is suitable to measure the concentration of Cesium chloride water solution. PAL-53S is suitable to measure the concentration of Copper sulfate water solution.  
Scale Cesium Chloride (g/100g)
Copper Sulfate (Concentration)(g/100g)
Measurement Range Cesium Chloride : 0.0 to 60.0%
Temperature : 10.0 to 40.0゚C
 Copper Sulfate (Concentration) : 0.0 to 20.0%
Temperature : 10.0 to 40.0゚C
Resolution Cesium Chloride : 0.2%
Temperature : 0.1゚C
 Copper Sulfate (Concentration) : 0.1%
Temperature : 0.1゚C
Measurement Accuracy Cesium chloride : ±0.4%
Temperature : ±1゚C
 Copper Sulfate (Concentration) : ±0.2%
Temperature : ±1゚C
Temperature compensation range 10℃ to 40℃ 10℃ to 40℃ 10℃ to 40℃
Ambient Temperature 10℃ to 40℃ 10℃ to 40℃ 10℃ to 40℃
Sample Volume  At least 0.3mL  At least 0.3mL  At least 0.3mL
Measurement Time  Approx. 3 seconds  Approx. 3 seconds  Approx. 3 seconds
Power Supply  Two (2) AAA alkaline batteries   Two (2) AAA alkaline batteries   Two (2) AAA alkaline batteries 
Battery Life  Approx. 11,000 times measurement
(when alkaline batteries are used)
 Approx. 11,000 times measurement
(when alkaline batteries are used)
 Approx. 11,000 times measurement
(when alkaline batteries are used)
International Protection Class  IP65 Dust-tight and Protected against water jets.  IP65 Dust-tight and Protected against water jets.  IP65 Dust-tight and Protected against water jets.
Dimensions & Weight  55(W) x 31(D) x 109(H)mm, 100g (Main Unit only)  55(W) x 31(D) x 109(H)mm, 100g (Main Unit only)  55(W) x 31(D) x 109(H)mm, 100g (Main Unit only)

Cesium chloride (CsCl) is an inorganic compound consisting of the elements cesium (Cs) and chlorine (Cl). It is a white crystalline solid that has various applications in research, industry, and medicine. Here are some key points about cesium chloride:

Chemical Formula: CsCl

Physical Properties:

  1. Appearance: Cesium chloride is a colorless or white crystalline solid.
  2. Density: It has a relatively high density, and its crystal structure is cubic.
  3. Solubility: Cesium chloride is soluble in water.


  1. Research and Analytical Chemistry:

    • Cesium chloride is used in molecular biology and biochemistry for the separation and purification of nucleic acids, particularly DNA.
    • Density gradient centrifugation using CsCl is a common method for isolating DNA fragments based on their buoyant density.
  2. Medical Applications:

    • Cesium chloride has been investigated for its potential use in cancer treatment, particularly as a component of alternative cancer therapies. However, its efficacy and safety for these purposes are highly controversial and not widely accepted within the mainstream medical community.
    • Caesium-137, a radioactive isotope of cesium, has medical applications in radiation therapy for cancer treatment.
  3. Industrial Uses:

    • Cesium compounds, including cesium chloride, find applications in various industrial processes. Cesium is sometimes used in drilling fluids for the oil and gas industry.
  4. Research Tracer:

    • Cesium-137, a radioactive isotope of cesium, is used as a tracer in environmental and geological research. It is produced as a byproduct in nuclear reactors and nuclear weapons testing.

Safety Considerations:

  1. Radioactive Isotope: While stable cesium (Cs-133) is not radioactive, caution should be exercised with cesium-137, a radioactive isotope of cesium. Cs-137 is a byproduct of nuclear fission reactions and poses health risks due to its radioactivity.

  2. Health Concerns: Ingesting large amounts of cesium chloride or exposure to high levels of radioactive cesium can pose health risks, including damage to internal organs. It is important to handle cesium compounds, especially radioactive isotopes, with appropriate precautions.

Note: The use of cesium chloride in alternative cancer treatments is controversial and not supported by mainstream medical authorities. Before considering any medical applications of cesium chloride or related treatments, individuals should consult with qualified healthcare professionals and rely on evidence-based medical practices.

It's crucial to handle cesium and its compounds with care, especially when working with radioactive isotopes. Proper safety protocols and precautions should be followed in laboratory and industrial settings to minimize risks associated with cesium compounds.


Copper sulfate, also known as cupric sulfate or copper(II) sulfate, is an inorganic compound with the chemical formula CuSO₄. It exists in various forms, including the anhydrous (without water) and hydrated (with water) forms. The most common form encountered is the pentahydrate, CuSO₄·5H₂O, which is bright blue in color and often referred to as "blue vitriol" or "bluestone." Here are some key points about copper sulfate:

Chemical Formula:

  • CuSO₄ (anhydrous)
  • CuSO₄·5H₂O (pentahydrate)

Physical Properties:

  1. Color: Copper sulfate pentahydrate is typically bright blue. The anhydrous form can appear white to off-white.
  2. Solubility: It is soluble in water, and its solubility increases with temperature.

Common Forms:

  1. Anhydrous Copper Sulfate (CuSO₄):

    • The anhydrous form is a white or off-white powder.
    • It readily absorbs water to form the hydrated forms.
  2. Copper Sulfate Pentahydrate (CuSO₄·5H₂O):

    • The pentahydrate form is a bright blue crystalline solid.
    • It is commonly used in various applications, including agriculture and laboratory experiments.


  1. Agricultural Applications:

    • Copper sulfate is used as a fungicide and algicide in agriculture. It helps control the growth of fungi and algae on crops.
    • It is also used in animal feed supplements to provide copper, an essential trace element for livestock.
  2. Laboratory and Industrial Uses:

    • In laboratories, copper sulfate is used in various chemical experiments and demonstrations.
    • It is employed in industrial processes such as metal surface treatment and electroplating.
  3. Educational Demonstrations:

    • Copper sulfate is often used in educational settings for crystal growing experiments, where students observe the formation of copper sulfate crystals.
  4. Water Treatment:

    • In certain cases, copper sulfate is used in water treatment to control algae and invasive aquatic plants.
  5. Analytical Chemistry:

    • Copper sulfate is used as a reagent in analytical chemistry for detecting the presence of water.


  1. Copper Toxicity: While copper is an essential trace element for living organisms, excessive exposure to high concentrations of copper sulfate can be toxic. Ingesting large amounts can lead to health issues.

  2. Environmental Impact: Copper sulfate should be used with caution in aquatic environments due to its potential environmental impact on aquatic life.

Safety Precautions:

  1. Protective Measures: When handling copper sulfate, appropriate protective measures such as gloves and eye protection should be used to prevent skin and eye contact.
  2. Proper Disposal: Disposal of copper sulfate should be done in accordance with local regulations, as it can pose environmental risks.

Copper sulfate has a range of applications, but it should be used with awareness of its potential toxicity and environmental impact. Proper precautions and guidelines should be followed when handling and disposing of copper sulfate to ensure safety and minimize environmental risks.



PAL Commitment 

A new ergonomic design for comfort and ease of use! In pursuit of an "easy to use" , "easy to operate" and ergonomic architecture of new instruments, ATAGO has achieved a "palm fitting" masterpiece as well as unit that is high in hygienic properties. By reducing the number of unnecessary assembly parts, we have reduced the risks of a germ reproductive environment. Through our efforts to produce a hygienic instrument to be used in any industry, these units are designed to be completely washable. The new PAL series has been approved by the HACCP, and are equipped with the new ELI feature, which ensures accurate measurements - even outdoors. Requests from our customers worldwide are reflected in the development of the new PAL units

ATAGO Releases NFC (Near Field Communication) Equipped Refractometers

In addition to the Bluetooth enabled refractometers, ATAGO ® released refractometers with near-field communication (NFC) technology for the ease of storing and sharing data with phones, tablets, laptops, and other NFC-equipped devices. Simply by tapping NFC-equipped devices, up to 100 measurement data with the date and time are transferred in a matter of seconds. The NFC solution is simpler and prevents typical human errors in data collection and data generation.

With ever evolving movement of profound change in how human interact with machine automation, this upgrade seizes one’s time to write down measurements with a pen or paper.

How to Use NFC Feature on PAL:

Quick and easy three steps

  1. For cellphones, download NFC reader app or turn on the NFC feature. For computers, connect the NFC reader.
  2. Place NFC reader to the PAL device.
  3. Download data

Measurement Methods In 3 Easy Steps


Other Features

Light & Compact, 100g. Ergonomically designed for one-handed operation. The innovative design makes it easy to pour out and remove a sample, but difficult to spill the sample  Sample size 2-3 drops.
The speedy performance of the PAL is amazing. Simply put a drop of a sample on the prism surface and press the START key. The Brix value ( sugar content/concentration) will be displayed in just 3 seconds. High-temperature samples can be measured.
The protection class of the PAL is IP65. You can rinse off the sample by running water on the sample stage. The design allows the user to easily wipe off the sample. Will float if accidentally dropped in water  Revolutionary new External Light interference (ELI) feature Patented

When intense light penetrates the prism of a digital refractometer, the light waves interfere with the sensor, which may lead to inaccurate measurements. To ensure accurate measurement results, the PAL is programmed with the ELI function which displays the [nnn] warning message when intense direct light is detected. Forming a habit of shading the sample stage with your hand and re-pressing the START key (when the warning message from the ELI function is displayed) will ensure accurate measurement results each time
  The sample stage is designed to keep sample solutions from spilling out. Calibration with water only.
The Automatic Temperature Compensation function of the PAL enables you to take measurement readings regardless of the ambient temperature. Convenient Storage case.
New Digital Hand-Held "Pocket" Meter for PAL-Series Equipped with NFC Data Transmission Function Data history can be accessed by bringing PAL-NFC to any Android devices or PC-linked USB NFC Reader.

*The Certification Mark is a trademark or registered trademark of NFC Forum, Inc. in the United States and in other countries.

Mode S™  -  improves the repeatability of samples that cause inconsistent readings.

Mode H™  : Mode H enables to measure the sample at high temperature in 2 seconds.




    • Weight (In Grams)
      100 g
    • SKU
    • Commodity Codes
  • Manufacturer
    Atago Co Ltd
  • Country of Origin
  • Measurement Range
    Cesium Chloride : 0.0 to 60.0% Temperature : 10.0 to 40.0゚C, Copper Sulfate (Concentration) : 0.0 to 20.0% Temperature : 10.0 to 40.0゚C
  • Accuracy
    Cesium Chloride : ±0.4% Temperature : ±1゚C, Copper Sulfate (Concentration) : 0.1% Temperature : 0.1゚C
  • Model
    PAL-42S, PAL-53S, PAL-54S, PAL-10S, PAL-MOSM, PAL-11S