*FREE SHIPPING* Have you ever wondered how to perfect your coffee or espresso? With this Total Dissolved Solids (TDS) refractometer, you can pinpoint your coffee’s exact extraction level, allowing you to fine-tune your brew and unlock its full flavor potential. Bring barista-level precision to your home and elevate every cup to its best taste yet. We are proud to partner with the Di-Fluid R2 Extract Coffee TDS Refractometer. The R2 uses unmatched precision with their most accurate refractometer yet, offering ±0.02% TDS. The vibrant color display provides more data and expanded testing options, while the aluminum sample dish ensures 675% better temperature conductivity for ultra-stable measurements. With IP67 water resistance, cleaning is as simple as rinse and repeat. Advanced microcalibration technology delivers precise temperature compensation for reliable results every time. High-Precision Performance: Measure with confidence! The refractometer offers a range of 0–30% TDS, precision of ±0.02% TDS, resolution of 0.01%, and accuracy of ±0.03% TDS for consistent, reliable results. DiFluid Café App: Connect with the coffee community through the app—share recipes, brew data, and insights to help everyone improve their craft. Versatile Testing Modes: Choose from Standard Test, Multi-Test, or Auto-Test to suit your brewing needs, making this refractometer more capable than ever. Waterproof & Easy to Clean: The IP67 water-resistant design lets you rinse the sample dish under running water and wipe it dry—quick and hassle-free. Easy to Read & Rechargeable: The HD LCD screen provides clear readings, and the built-in 430mAh rechargeable battery fully charges in just 2 hours, keeping you powered and ready to brew. Product Dimensions : 0.91 x 0.57 x 3.31 inches; 1.27 ounces Item model number : R2 Batteries : 1 Lithium Polymer batteries required. (included) Weight: 1.27 ounces UNSPSC Code : 52151600 (Domestic kitchen tools and utensils) Manufacturer : Difluid ASIN : B0BQ6LWWMX Country of Origin : China User manual Get yours today before we run low!