automotive refractometer, Antifreeze/Battery/Cleaning Fluids refractometer, Milk Refractometer, Digital Refractometer automotive refractometer, Antifreeze/Battery/Cleaning Fluids refractometer, brake fluid Refractometer, Digital Refractometer, Milk RefractometerModel Measurement RangeMin. Div.AccuracyMilk refractometerHB-6110~20% milk0.2% milk±0.20% Milk refractometer