Features 1、Supports automatic temperature compensation, compact refractometer can be used in an easy way. 2、High durability helps concentration meter widely be used, which can be adaptive to most liquid sugar test. 3、Refractive index is manufactured through different refractive index of liquid, small and accurant. 4、Convenient for your use, refractometer supports simple and easy-to-understand operation method. 5、With high performance according to strict rule, this refractometer is made via accurancy craft by many experts. Specification Item Type: Refractometer Model: RHB-32ATC Sugar Test Range: 0-32% Measurement Accuracy: 0.1% Material: Aluminum Automatic Temperature Compensation (ATC): 10℃~30℃ (50℉~86℉) Package List 1 x Refractometer 1 x Dropper 1 x Screwdriver 1 x User Manual 1 x Cloth(color random)