Features 0‑32% RANGE: The brix meter is designed to measure sugar content in fruit juices, fruits, beverages in the range of 0‑32%, to monitor the ripeness of grown fruits and vegetables or for laboratory studies. EASY MEASUREMENT: After calibration place 2 to 3 drops of solution on the prism of the brix meter and point it towards the light, you can get accurate results through the eyepiece and the testing process is simple. ATC FUNCTION: The brix refractometer has an ATC function that automatically compensates for changes in ambient temperature and eliminates deviations caused by temperature changes. The high refractive index optical lens and smoothly adjusting eyepiece pro HANDHELD AND WEAR RESISTANT: The sugar refractometer is made of aluminum alloy and ABS, rubber, rugged, rust proof, wear resistant and corrosion resistant. STORAGE CASE: The portable sugar refractometer comes with a storage case, mini screwdriver for calibration, pipette and cleaning cloth in a random color. Easy to clean and store after use. Specification: Item Type: Brix Refractometer Material: Aluminum Alloy, ABS, Rubber Measurement Range: 0-32% Value: 1% Accuracy: ±1% Package List:1 x Brix Refractometer1 x Dropper1 x Screwdriver1 x Soft Cloth (Random Color)1 x Instruction Manual1 x Storage Box Note:This instrument is a sophisticated optical instrument, in the use and maintenance of the following matters should be noted:1. In use must be careful and cautious, strictly according to the instructions to use, not arbitrarily loose the connection parts of the instrument, not to fall, collision, violent vibration is strictly prohibited.2. After use, it is strictly forbidden to wash directly into the water, should be wiped with a clean soft cloth, for the optical face, should not touch, scratch.3. The instrument should be put in a dry, non corrosive gas place for storage.4. Avoid losing spare parts. Package List 1 x Brix Refractometer 1 x Dropper 1 x Screwdriver 1 x Soft Cloth (Random Color) 1 x Instruction Manual 1 x Storage Box