Digital Pocket Refractometer ATAGO model PAL-COFFEE (BX/TDS) The dual-scale version of the PAL-COFFEE can measure in both Brix and TDS. Concentration of coffee and espresso can be measured. Stable readings are possible even with high-temperature, fresh brew due to the continuous measurement feature. Watch the unit take multiple measurements, and read once the measurements stabilize. Range : - Brix : 0.00 to 25.00% - TDS : 0.00 to 22.00% - Temperature : 10.0 to 100C Resolution : - Brix : 0.01% - TDS : 0.01% - Temperature : 0.1C Accuracy : - Brix : 0.10% - TDS : 0.15% - Temperature : 1C Temperature compensation range : 10 to 100C Ambient Temperature : 10 to 40C Sample Volume : At least 0.3mL Measurement Time : Approx. 5 seconds ; 120 seconds of continuous measurement Power Supply : Two (2) AAA alkaline batteries Battery Life : Approx. 11,000 times measurement (when alkaline batteries are used) International Protection Class : IP65 Dust-tight and Protected against water jets Dimensions Weight : 55 (W) x 31 (D) x 109 (H) mm,100g (main unit only) Cat. No : 4533