Handheld Digital Refractometer - 0-55% grow-light-bulbs 5 million - 1

5 million - 1

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Handheld Digital Refractometer - 0-55% grow-light-bulbs 5 million - 1This compact digital brix refractometer is a high precision optical instrument that uses its own LED light source to measure brix and refractive index. Displays brix%, refractive index and temperature simultaneously. This compact digital brix meter is a high precision optical instrument that uses its own LED light source to measure brix and refractive index. The device uses the principle that different liquids have different refractive indices, and