DiFluid R2 Extract Refractometer, Digital TDS Meter for Coffee Concentration Testing

A 32% Bigger More Detailed, Color Display

R2 Extract's bigger, higher resolution, color display allows for a greater density of information, for more testing modes and greater versatility.

Standard Test
Press the button, and watch the results appear. It's just that easy. 

Multi-Test
Set a number of tests, and let R2 do the rest. The result in an average.

Stable Test

Testing begins automatically when temperature change is detected. Results display when stable temperature is reached.

Micro-Calibration
A huge leap in accuracy & precision

The Micro-calibration layer compensates for external disturbances and physical deformations such as temperature changes or undissolved particles, greatly improving accuracy and stability.

Faster, Easier and More Accurate

R2 Extract utilizes a carefully calibrated 2D CMOS imaging sensor, reducing risk of misalignment and fragility, while increasing data collection and eliminating the need for a cap.

Removing External Influence

Dual temperature sensors allow for incredible precision by reducing interference from the outside environment. This is achieved by compensation between two separate place temperature sensors within R2 Extract.

Nano-Scale Hydrophobic Layer

The Nano-Scale Hydrophobic Layer prevents liquid from sticking to the glass, minimizing the need to touch it and providing an extra layer of protection against scratches assuring long life.

Waterproof For Easy Cleaning

R2 Extract is IP67 water resistant, allowing you to simply rinse the sample dish under water and wipe dry. Couldn't be easier

Environmental Commitment

R2 Extract ships with a quality metal reusable coffee spoon to replace single use plastic pipettes. Not only does this prevent plastic waste, but also helps to distribute heat from coffee, resulting in better accuracy, R2 Extract ships in sustainable packaging, and the charging cable does not contain toxic materials.