R2 PU
Coffee Cherry Brix Refractometer
Used by farmers all over the world.

Measure Brix Sync with DiFluid Tech and CoffeeOS* Durable PU Material IP67 Water Resistant Long-Lasting Battery
From $199.99

Range: Choose an option

0-35
0-55
Easy Returns | Worldwide Shipping | 1 Year Warranty

Measure Coffee Brix: Quickly and accurately measure the sugar content in coffee cherries, fruits, and beverages.

Sync with R2 PU App: Log measurements automatically and track sugar concentration trends with the smart DiFluid Tech App.

Durable PU Material: Built with high-quality PU for maximum durability, ensuring long-lasting performance even in rugged environments.

Waterproof & Easy to Wash: Rated IP67, allowing for easy rinsing without worry of water damage.

Long-Lasting Battery: Larger battery provides extended use between charges, keeping you measuring all day.

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Frequently Asked Questions

What kind of water should I use to calibrate?

Calibrate with any clean, filtered water for ease of use and enough accuracy for daily use.

Calibrate with distilled water for the highest possible accuracy.

What app does this connect to?

R2 PU is a universal brix refractometer used to test sugar content. For a wide range of sugar testing tools, connect to DiFluid Tech. For coffee specific tools, connect to CoffeeOS. The CoffeeOS tools that utilize R2 PU are coming in 2026.

Can I test coffee TDS with this?

No, R2 PU does not display results in TDS. For TDS readings, you need R2 Extract.