Feature:1. Easy to use and calibration, only require 1 drop of sample, can easily test TDS / Brix.2. Suitable for home use and wine shop to test the wine concentration and sugar level to ensure making a delicious wine.3. Adopt linear CMOS sensor,this instrument has stable performance, high precision, high reliability, clear reading function.4. With large display screen, cool and modernized design, simple to operate and easy to read even in the dark.5. It also features IP65 waterproof, shockproof material, low power consumption, 10-50C automatic temperature compensation function.Specification:v\:* {behavior:url(#default#VML);}o\:* {behavior:url(#default#VML);}x\:* {behavior:url(#default#VML);}.shape {behavior:url(#default#VML);}Condition: 100% Brand NewItem Type: Brix MeterMaterial: PlasticBattery: 1 x AAA 1.5V Battery (not included)IP: IP65Automatic Temperature Compensation: 10-50CWeight: Approx. 344g / 12.1ozv\:* {behavior:url(#default#VML);}o\:* {behavior:url(#default#VML);}x\:* {behavior:url(#default#VML);}.shape {behavior:url(#default#VML);}Model FunctionMeasuring SequenceMeasuring RangeResolutionAccuracyDR401 Brix S010.0-45.0% 0.10%0.20%%VOLap S02 0.0-22.0%0.10%0.2%OeOES033-15012%KMWS040.0-25.00.10.2Note:1. After measuring the sample, clean the sample plate with distilled water and dry it with a soft cleaning cloth or towel.2. Do not leave the sample residue in the sample board for a long time.3. Please clean the sample plate as soon as possible to avoid irreparable damage to the prism and metal surface when measuring corrosive liquid.4. Please use a soft cleaning cloth or paper towel to clean the sample plate so as not to scratch the prism glass.5. If the dropper and dust-free cloth are not used, please clean them with water and put them into the box.6. If the device is not in use for a long time, remove the battery and store it in a cool and dry environment. Package List:1 x Instruction1 x Refractometer1 x Suction Cup1 x Plastic DropperNote:Please allow 1-3cm error due to manual measurement. Thanks for your understanding.