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METTLER TOLEDO™ Refracto™ 30GS Portable Refractometer

The handheld digital refractometer returns accurate and precise results within seconds, displayed in the units of measurement needed. Offers an extended measuring range due to its special prism design. Used for measurements in laboratory and production environments.

Manufacturer:  METTLER TOLEDO™ 51324660

Catalog No. 01-916-222



  • Compact and easy to use
  • Sapphire prism: held by a ring of hard gold plated brass. Sapphire has a higher refractive index and a better thermal conductivity than glass
  • Temperature compensation: determines the temperature and then corrects the refractive index to a standard temperature of 20°C or any other temperature the user defines
  • Plain language interface: shows results and settings in plain language
  • Ease-of-use: makes operation easy and efficient, results are displayed on backlit LCD display
  • Comprehensive result storage: stores up to 1100 results including sample identification, measurement unit, temperature compensation coefficient, date and time
  • Transfer the data whenver you want: transfer data to PC or printer using IR interface. For this purpose infrared/RS-232 converter (51325006) is required


Portable Refractometer
1.32 to 1.65
0.3 mL
±0.0005nD, ±0.2% Brix
Backlit LCD
λ = 589.3 nm
Sapphire prism
250 g
2.36 in.
7.28 in.
2.17 in.
5°C to 35°C
10°C to 40°C
2 x LR3, 1.5 V, type AAA with approximately 60 hours battery life
0 to 85 Brix
With pure water
0.0001nD, 0.1% Brix
Compact and easy to use, ideal for measurements in laboratory and production environments
ASTM D3321
8.8 oz.
185 x 55 x 60 mm
60 mm
185 mm
55 mm
± 0.2°C
Product Certifications