Features Sturdy metal body, made of durable Aluminum Require ambient light source only Compact design with rubberized grip handle Adjustable for focus Heavy-duty & lightweight Clear display of scales Soft and flexible eyepiece, superior comfort while viewing Simple & easy manual calibration Instant and reliable measurements of aqueous solutions ATC Compensation Range (i.e. Built-in Automatic Temperature Compensation System) from 10 Degree to 30 Degree Specifications: soy milk concentration ,birx sugar and the refractive index. Soy milk Suagr range :0~32% milk sugar brix Soy milk resolution :0.2% Soy milk range :0~25% milk Protein content (milk pure content) Soy milk resolution :0.5% Roy Milk Purity Value And Sugar Content Measuring Instrument Brix Meter 1. The Soy milk refractometer is an optical instrument designed according to the corresponding relationship between the Soy milk concentration ,birx sugar and the refractive index. 2. The Soy milk refractometer can directly measure the Soy milk concentration. When measuring, just drop a few drops of Soy milk on the refractometer prism and look towards the light. 3. Quickly read the concentration of Soy milk to identify whether the Soy milk has been mixed with water Packaging details 1 x Refractometer 1 x pipette 1x instruction manual 1x mini screw driver 1x cleaning cloth Note : this product with box.