Difluid R2 Extract Refractometer

Faster, smarter, and more accurate, the R2 Extract from DiFluid is a refined advancement in digital refractometry—engineered to meet the demands of today’s coffee professionals. Whether you're dialing in a perfect espresso or analysing filter brews, the R2 delivers high-precision TDS readings with ease and reliability.

At its core is a carefully calibrated 2D CMOS imaging sensor, enhanced by a microcalibration layer and dual internal temperature sensors for unmatched stability and accuracy. Housed in a sleek, pocketable body with rubber feet for added grip, the R2 features a larger, high-resolution colour display that supports expanded testing modes and delivers more data at a glance.

Designed for both standalone use and deep integration with the DiFluid Café app, the R2 becomes even more powerful when paired with the Microbalance scale and Omni roast and grind analyzer—creating a comprehensive, data-driven brewing ecosystem.

Key Features

• Exceptional Precision: 0.01% resolution, ±0.02% precision, and ±0.03% accuracy; full range of 0–30% TDS.

• Advanced Imaging Sensor: The 2D CMOS sensor reduces misalignment and fragility, while eliminating the need for a sample cap.

• Dual Temperature Sensors: Internal compensation between two strategically placed sensors ensures stable, interference-free readings.

• Microcalibration Layer: Minimises external disturbances such as undissolved particles and temperature shifts, ensuring consistent accuracy.

• High Conductivity Sample Dish: Aluminum design offers 675% greater thermal conductivity for rapid, stable temperature control.

• Hydrophobic Coating: A nano-scale protective layer prevents residue buildup and scratches, extending the device’s lifespan.

• IP67 Water Resistance: Fully rinseable under running water—just wash, wipe, and you’re ready for the next brew.

• Larger Colour Display: High-resolution screen allows for more detailed testing options and real-time feedback.

• Compact & Ergonomic Design: Portable form factor with a wide sample dish and non-slip base for easy use anywhere.

• App Integration: Connects with the DiFluid Café app for tracking, recording, and analysing data across devices—delivering deeper insights and helping you refine every aspect of your coffee workflow.

The DiFluid R2 Extract isn’t just a refractometer—it’s a powerful tool to better understand your brews, improve consistency, and push your coffee craft further.