Bellingham + Stanley 

Bellingham & Stanley
RFM300-M Series Refractometers

The RFM300-M brings our popular RFM300+ refractometer up-to-date with a line of high precision Peltier temperature controlled benchtop refractometers. The RFM300-M is identical in features to the recently launched RFM300-T Series in all aspects except for its tactile keypad. Incorporating wide beam optics and one of the flattest prism platforms on the market, RFM300-M Series refractometers are capable of measuring non-homogenous samples such as fruit juice with pulp, opaque chemical compounds and emulsions.
  • 4" High definition display with robust push-button keypad for factory use.
  • Flat prism surface for easy-cleaning.
  • Wide beam scan for non-homogenous samples.
  • Three decimal place Brix precision (6 d.p. RI).
  • RFID user clearance.
  • Supports FDA regulation 21 CFR Part 11.
  • PHR-MEAN Method.
  • USB & Ethernet connectivity.
Technical Data:
Refractive index:
Sugar (°Brix):

1.32 to 1.58
0 to 100
Reading time:min. 4 s
Measuring temperature range:0 °C or 10 °C below ambient whichever is greater to 70 °C
Temperature sensor accuracy:± 0.03 °C
Sample temperature stability:± 0.05 °C
Temperature compensation
Sucrose (°Brix):
AG fluids:

5 to 80 °C
5 to 40 °C
Interfaces:3 x USB(A), 1 x USB(B), 1 x Ethernet, 1 x Serial (RS232)
Prism seal:silicone / resin
Bellingham & Stanley  RFM300-M Series Refractometers
Bellingham & Stanley  RFM300-M Series RefractometersBellingham & Stanley  RFM300-M Series Refractometers    
refractive index
sugar (°Brix)
PUOrder StockPrice/Unit/NOK 
RFM340-T0.00 0010.0 115439636-109,906.00Order