Portable: Robust design, compact size and light weight, convenient to hold. With a compact and lightweight case, the device is very portable. Batteries are not necessary, so you can measure at any time. Practicality: The refractometer measures the sugar content from 0 to 80% (0 to 20 degrees), is suitable for fruit, vegetables and drinks. Measurement results can be read directly and accurately via three measuring scales. Easy to use: Place 2, 3 drops of sample on the main prism, close the plate and look through the viewing window to read the brix value. The hand refractometer with automatic temperature compensation: 50 ° F ~ 86 ° F (10 ° C ~ 30 ° C). It is not necessary to correct the previous value. More health: Are you always worried about taking too much sugar? It can not only measure the sugar content of fruit and vegetables in the home garden, also measure the sugar content of drinks you always drink.