Urine refractometer instructions

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Refractometer - Clinical Refractometer measures urine specific gravity, or gives the refractive index in seconds. Dimensions Place a drop or two of a sampleThis will ensure the refractometer is accurate and the readings are reliable. Wipe off the water with a clean tissue. This will ensure the urine is not diluted Calibration with water only. Measurement in 2 seconds. Extremely water resistant (IP65). Light & Compact, 70g. Ergonomically designed for easy,. SERUM PROTEIN REFRACTOMETER SPR-NE Instructions for use Before measuring the serum protein or urine specific gravity, the instrument should be