SPER Scientific Refractometers Clinical

SPER Scientific Refractometer, Clinical, 171 X 38mm, 1 To 1.05 Urine Specific Gravity Range, 0.002 Urine Specific Gravity Resolution, ±0.002 Urine Specific Gravity Accuracy, 1.333 To 1.360nd Refractive Index Range, 0.0005 Refractive Index Resolution, ±0.0005 Refractive Index Accuracy, 88g Weight, With Carrying Case And Calibration Tool, Measures Urine Specific Gravity Or Gives The Refractive Index In Seconds - SPER