Keep my session open?
Ending In 
The session is expired
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

Digital refractometers, RFM300-M

Supplier: Bellingham + Stanley
These refractometers bring with a line of high precision Peltier temperature controlled benchtop refractometers for demanding applications within the food, beverage, chemical and industrial industries.

  • Tactile chemical resistant keypad
  • Wide beam scan for non-homogenous samples
  • Three decimal place Brix precision* (6 d.p. RI)

Created specifically for use in harsh environments and builds upon legacy of quality instrumentation as well as incorporating wide beam optics, they are capable of measuring non-homogenous samples such as fruit juice with pulp, opaque chemical compounds and emulsions, that are normally difficult to read with optical refractometers or those digital refractometers that do not address the need to measure “difficult samples”.

The case is ergonomically designed, so that any spills are dealt with by the sloping shape of the case or by the PEEK spill barrier that surrounds the shallow, easy-clean stainless steel prism dish.

Certifications: US/EP/BP/JP compliant. Supports FDA regulation 21 CFR Part 11. PHR-MEAN & Coffee Solids Methods.

Ordering information: Can be fitted with optional extras - See under 'ACCESSORIES'. Validation documentation IQ/OQ/PQ available on request.

Delivery information: Supplied with power cable and multi-language manual.



Expand All / Collapse All
Description Model Precision Resolution Pk VWR Catalog Number Quantity
Benchtop refractometer RFM340-M ±0,00005 nD 0,000001 nD ; 0,01/0,001 °Bx 1 BELL19-45-61-191
Benchtop refractometer RFM330-M ±0,00005 nD 0,0001 nD ; 0,1 °Bx 1 BELL19-35-61-191
Generate Barcodes Barcode Label Format: 
Generate PDF Catalog Page


Measurement range - refractive index (nD) 1,32 − 1,58 nD
Measurement range (°Brix) 0 − 100 °Bx
Scales 100 configurable
Reproducibility ±0,01/0,005 °Bx
Reading time 4 s
Temperature sensor ±0,03 °C
Temperature stability ±0,05 °C
Temperature measurement 0 or 10 °C below ambient, whichever is greater to 70 °C
Memory 8000 values
Interfaces 3× USB (A) ; USB (B) ; Ethernet ; RS232
Light source 589 nm LED with filter for 100 000 hours
Prism Artificial sapphire, stainless steel 316, PEEK spill barrier
Electrical 100 - 240 V/50 - 60 Hz
Display High resolution (4”) and membrane touch-button interface


Expand All / Collapse All

Description Pk VWR Catalog Number Quantity
Replacement Filters 12 BELL19-201
Serial printer, CBM910 1 635-0478
Serial cable for printer 1 635-0194
Generate Barcodes Barcode Label Format: 
Generate PDF Catalog Page


Need help?

  • Whatever you have to say, positive or negative, is important to us.
  • Providing feedback takes only seconds.
  • Your feedback will be made available to the public on the web. will publish your name as user.
You can use this name, or edit and save a nickname.
We recommend authors use their first and last initial.

Please confirm the industry you work in

Example: Pharmaceutical

Please confirm your role

Example: Clinical Trial Assistant

Please confirm your location

Example: New York, NY


Total Ratings: 0
Avg. Ratings: 0.0 out of 5

Sort all by:

Enter Details

Select the article for which you are looking for Certificate

Indicate the Lot Number. This field is mandatory. Enter 'x' if unknown for VWR Chemicals

Enter Certificate Details

Enter the Lot number:

Choose from recent batch/lot numbers:

Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

Original Product:

Description Catalog Number Availability Unit Your Price Price Per Qty

A new look and a renewed commitment

Built on the features & resources you know, optimized with innovation from Avantor®. Our new brand symbolizes agility and our ability to adapt to customer needs.

Learn More Start Shopping