REFURBISHED: This Refractometer was only used for a short while. PAL-COFFEE(Dual sale of Brix and TDS), which famous Baristas are using for their important tools, has the high resolution of 0.01%.The subtle difference in the concentration of coffee and espresso can be measured.Stable readings are possible even with high-temperature, fresh brew due to the continuous measurement feature. Specifications Model PAL-COFFEE (BX/TDS) Cat.No. 4533 Scale Brix Todal Dissolved Solids(TDS) Range Brix : 0.00 to 25.00% TDS : 0.00 to 22.00% Resolution Brix : 0.01% TDS : 0.01% Accuracy Brix : ±0.10% TDS : ±0.15% We carry other Refractometers in stock as well! Handheld units that measure Brix/TDS and VST Coffee Refractometers - just type “coffee Refractometers” into our store search box National Industrial Supply 30777 Rancho California #891420Temecula, CA 92589, USASales: 310.748.6858 - Fax: 310.733.5480 - E-mail: [email protected] - Website: www.nisupply.com