with 2 scales for measuring refractive index and sucrose concentration (Brix) Specifications Measuring ranges: 1.33 - 1.54 nD / 0 - 95 Brix Resolution: 0.0001 nD / 0.1 Brix Accuracy: ± 0.0003 nD / ±0.2 Brix Sample temperature: 5 - 60 °C Aut. temperature corr.: 7 - 70 °C for 0 - 80 Brix Power supply: 2 x AAA batteries Protection class: IP65