"ATAGO" Portable Refracto-Polarimeter RePo-5

"ATAGO" Portable Refracto-Polarimeter RePo-5

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Availability: In Stock
Product Code: RePo-5

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Country of Origin: JAPAN

The RePo-5 can determine refractive index (nD).

In addition to angle of rotation and Brix, the RePo-5 can also display the refractive index (nD) of a sample. 

The RePo-5 is ideal for quality control in various industries such as fragrances, cosmetics, or pharmaceutical.



Angle of Rotation, Brix, Refractive index, Temperature

Measurement Readings

Angle of Rotation, Brix, Temperature
User (Refractive index)
Brix with Automatic Temperature Compensation

Measurement Range

Angle of Rotation : -5.00 to +5.00°(*1)
Brix : 0.0 to 85.0%
Refractive index : 1.3300 to 1.5080
Temperature : 15.0 to 40.0℃

Display Range

Angle of Rotation : -5.99 to +5.99°
Brix : -2.0 to 86.6%
Refractive index : 1.3278 to 1.5093
Temperature : 14.0 to 41.0℃


Angle of Rotation : 0.01°
Brix : 0.1%
Refractive index : 0.0001
Temperature : 0.1℃

Measurement Accuracy

Angle of Rotation: ±0.1° (at 20℃)
Brix : ±0.2%
Refractive index : ±0.0003 (at 20℃)
Temperature: ±1℃


Angle of Rotation: ±0.05° (at 20℃)
Brix : ±0.1%


589nm (near D-line)

Temperature compensation range

Brix : 15 to 40℃

Ambient Temperature

15 to 40℃

Storage environment temperature

0 to 65℃

Light source


Sample volume


Measurement Time

12 seconds

Power Supply

Size AAA alkaline battery x4

International Protection Class


Dimensions & Weight

101 x 160 x 38mm, 325g (main unit only)

(*1)These ranges are measured by the device’s 20mm light path.
These are convertible to below ranges:
-25.00°to +25.00°with a 100mm observation tube
-50.00°to +50.00°with a 200mm observation tube
Any sample that has Angle of Rotation within above ranges can be measured by RePo units


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