Measuring range and minimum scale: Brix: 0-40% Minimum scale: 0.2% Alcohol: 0-25% With temperature compensation function, it overcomes the data deviation caused by temperature changes and makes the data more accurate The eyepiece has been upgraded, and the lens glass is heavy crown optical glass, not ordinary glass, which has higher clarity and reduces the fatigue of the observer. Easy to use : Place 2 - 3 drops of sample onto the prism, and then look through the eyepiece for Sodium Chloride readings. Convenient to store : Compact in size and light in weight, packed with a plastic case, convenient to store and carry around. Application : Check the level of salt in brine and test the concentration of prepared food solution like seafood,curing food,pixkles etc.Widely used in saline food, agricultural production and scientific research. Color: black Size: 17*4*3cm Delivery quantity: 1 piece Note: Other items are not included here, other pictures are just showing effect. Due to the difference between different monitors, the picture may not reflect the actual color of the item. The products are all measured manually, please allow errors, thank you!