Features: The hand-held refractometer has the advantages of simple structure, shockproof, convenient operation, clear vision and low price. The sugar series is used in the fields of canned food, juice manufacturing, wine fermentation, beverage, fruit, honey harvesting and so on. The salt series is used in marine aquaculture, aquarium, and physiological saline preparation. The medical series is applied to the detection of serum protein and urine specific gravity. The industrial series is applied to the detection of automotive battery fluid, freezing fluid, cleaning fluid, and the detection of machine tool lubricating fluid and cutting fluid. Alcohol series is used to detect the concentration of alcohol (ethylene glycol) in white wine and rice wine. The milk soymilk series is used to control the taste and sweetness of soy milk. It is an indispensable tool for the soy product processing industry as well as canteens, soymilk factories and restaurant restaurants. Specification: Model: RZ134 Measurement range: sugar 0~ 32% Salt concentration 0~ 28% Small-scale: 0.20% sugar 0.2% of salt Automatic temperature compensation: 0 to 30C Weight: 229 g / 8.1 oz(approx.) Package list: 1 x refractometer 1 x plastic pipette 1 x mini screwdriver 1 x cleaning cloth