Feature: 1. LCD Digital Display: This concentration detector features a large LCD digital display for easy reading of measurements, temperature and battery life.    2. Fast Detection: It has one button calibration, 2 drops sample size and 2 seconds response time, 2 seconds high speed accurate detection.    3. IP67 Waterproof: The welding aperture using ultrasound sealing technology makes the device highly waterproof, with IP67 waterproof and dustproof rating, it is also denser and more beautiful than traditional screws and snaps.    4. Integrated Design: Integrated notch design, the liquid tank is a bright surface that is easy to clean, and the appearance is a non slip sand surface, which highlights the texture, the compact and lightweight design is easy to carry.    5. Widely Applicable: Applications include high concentration samples such as jams, jellies, syrups, honey and fruit juicing concentrates for winemakers and measuring cutting oils, organic solvents, etc.       Specification:                            Item Type: Coffee Refractometer Material: PC Gross Weight: 112g / 4.0oz Product Size: Approx.23 x 14 x 83mm / 0.9 x 0.6 x 3.3in Measurement Range(TDS): 0-26% Measurement Accuracy(TDS): ±0.03% Resolution(TDS): 0.01% Temperature Range: 5°C-45°C Battery Type: Lithium battery(built in) Battery Model: 501015 Battery Capacity: 350mAh Waterproof Grade: IP67                                Package List: 1 x Wipe Cloth   1 x Data Cable    2 x Dropper    1 x Rope    1 x Tester    1 x Storage Bag    1 x English Instruction Manual