日本ATAGO爱拓数显柠檬酸浓度计PAL-29S/PAL-101S/PAL-102S The digital refractometer PAL-29S is suitable for measuring citric acid/water solution (g/100g). This model has Near Field Communication (NFC) feature. Specifications Model PAL-29S Cat.No. 4429 Scale Citric acid (g/100g) Range Citric acid : 0.0 to 10.0%,  Temperature : 10.0 to 40.0ﾟC Resolution Citric acid : 0.1%,  Temperature : 0.1ﾟC Accuracy Citric acid : ±0.2%,  Temperature : ±1ﾟC International Protection Class IP65 (Water resistant) Temperature compensation 10 to 40ﾟC