Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Mettler Toledo™ Excellence RM Digital Benchtop Refractometers

Benchtop refractometers allow you to determine the refractive index, BRIX, HFCS, or user-defined concentrations of a wide variety of liquids quickly and accurately. Mettler Toledo Excellence RM Digital Benchtop Refractometer has an in-built Peltier temperature control which provides both reliable temperature stability and rapid heating/cooling rates.

Manufacturer:  Mettler Toledo™ 51337003

 View more versions of this product

Catalog No. 10-376-203

This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000. View substitute products »



  • Inert sapphire prism facilitates measurement of thin, highly volatile, dark, or viscous liquids
  • Removable top section provides ease of cleaning with simple tap water without the need for tools
  • Plug-and-play connection of accessories such as the printer, barcode scanner, LogStraight™ biometric fingerprint reader, and ErgoSens™ infrared sensor for hands-free operation
  • Assisted sample loading and clearing are possible through the addition of FillPal™ and DryPal™ units
  • Optional EQPac (Equipment Qualification Package) provides comprehensive, detailed qualification guidance (IQ/OQ/PQ) to those working in regulated environments

Expand Your Scope of Measurement
  • LiquiPhysics™ allows you to add parameters such as pH, color, and density/specific gravity to your refractive index readings
  • Simply connect a compatible SevenCompact™ pH or conductivity meter, colorimeter, or density cell to the RM module and define the method
  • Optional LabX™ LiquiPhysics™ Express software captures and manages all of these data points under a single platform
  • LabX™ also fully supports your CFR 21.11 requirements, provides user management, audit trail, flexible data export options, and fully customized reports
Reliable Standards
  • Mettler Toledo Certified Combined Density and Refractive Index Standards reduce risk, uncertainty, and error-prone sample transfer Standards come complete with certificates including an easy-to-scan barcode containing all information necessary for calibration
  • Barcodes save you valuable time, reduce data entry error, and improve traceability


Model RM40
0.0001, 0.1% Brix
1.32 to 1.7
41 to 212°F
5 to 100°C
20 sec.
0 to 100% Brix
Product Certifications
Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit