<ul><li>Portable: Sturdy design, compact size and light weight, convenient to hold. With a compact and lightweight body, the device is very portable. Batteries are not required, so you can measure at any time. </li><li> Practicality: the refractometer measures the sugar content from 0 to 90% (0 to 30 degrees), suitable for fruits, vegetables and drinks. The measurement result can be read directly and precisely via three measuring scales. </li><li> Easy to use: place 2-3 drops of the 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. </li><li> Better Health: Are you still worried about consuming too much sugar? Not only can it measure the sugar content of fruits and vegetables in the vegetable garden, but it can also measure the sugar content of the beverages you always drink. </li><li> Customer Service: Every product from us has passed strict quality checks, if there is any quality problem, you will get a full refund. If you are not satisfied with the product, please contact us. we will offer you the best solution. </li></ul> <b>The principle of the refractometer: </b> Pour water into the glass and put a straw in it Part of the straw submerged in the water looks bent If you add more sugar to the water The straw in thick sugar water will look more curved. This is the principle of the refractometer: the higher the concentration of the liquid, the higher its index of refraction <b> Note: </b> Please be careful while following the instructions for use. All parts used to connect the instrument are essential Dropping, collision and strong vibration are prohibited for the device DO NOT rinse with water directly, please wipe with a clean, soft cloth Optical surface cannot be struck or scratched Device should be stored in a dry, non-corrosive place <b> Item Details: </b> -Product name: Brix refractometer 0-30% -Measuring range: Brix 0 - 30% -Minimum scale: 0.2% -Measurement accuracy: Brix ± 0.2% (10 to 30 ° C) - Temperature correction range: 10-30 ℃ Suitable for: fruits, vegetables, beer, alcohol, fruit juice, sweet sugar. etc -Product size: 17.5*4.1*4.1cm -Package size: 20.7*8.5*5.5cm -Material: ABS -Color: BlackNote: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual item received shall prevail.