Handheld Refractometer LHRF-A10 - Optical Refractometer Labtron Handheld Optical Refractometer LHRF-A10 measures refractive index from 1.440 to 1.520 ND with 0.001 ND resolution. Automatic temperature compensation operates from 0 to 30°C using a 20°C reference temperature. #LabEquipment #LabRefractometer #Labtron https://www.labtron.com/handheld-refractometer/lhrf-a10