This portable digital refractometer integrates dual testing ranges: 0-30% Brix for sugar content and 0-25% TDS for liquid concentration, perfectly customized for coffee brewing, fruit drinks and light syrup detection. Built-in ATC automatic temperature compensation automatically corrects temperature interference to offer accurate, steady test results within 3 seconds with just a small liquid drop on the stainless steel prism.

Equipped with a backlit LCD screen, it displays clear digital readings without blurry visual scales, solving the reading trouble in dim cafes or testing rooms. The compact lightweight body supports pocket carrying for on-site sampling, with auto power-off design to save battery power. Its smooth prism surface is easy to clean and resistant to coffee stains and corrosion.

It works great for baristas, beverage shops and food inspectors to control coffee taste consistency. Full accessories including dropper, calibration tool and protective storage case are included, effectively guarding optical parts against bumps and scratches for long-term daily use.