Features The ETB-0833 gloss meter meets the technical parameters and performance indicators specified in the international standard ISO 2813 & ASTM D523 with following features: Triple angle 20˚/60˚/85˚ measure at the same time. Self-calibration, no need to be hand adjustment. Automatically shut down LCD digital display Easy to use and accurate. Precise measure, excellent repetition performance Calibrate to provided standard (calibration tile) Completely intelligentized design. Simple menu-driven system operated by two user-friendly buttons interface convenient to use Long life-span lamp- house, no need to change Lightweight, fine, stylish appearance, portable to carry Have electrical source pressure shortage indication function International Standard ISO2813, ASTM D523 (USA)USB interface, can save 1193 datas Application The surface luster measure for printing ink, paint, bake lacquer, coating and woodwork The surface luster measure for construction decoration materials: marble, granite, glass chemical polishing brick and pottery brick The surface luster measure for plastic and sheet The surface luster measure for other materials Please see the following Examples of Applications: 20˚: High gloss paint (cars), plastics, varnish, sheet, paper and metal 60˚: Universal for paints, printing ink,varnish, metal, anodized aluminum, plastics and ceramics 85˚: Matt paint and surfaces in aviation, military, furniture and automobile interiors Notice This cable is used for data output, NOT for charging. ETB-0833 gloss meter is powered by 1.5V AA alkaline battery, NOT rechargeable battery.If it can not be powered on, please check if the battery is installed or not. Sometimes the battery is not in the package due to shipping policy. Technical Specifications Measure Range 0-200Gu Accuracy <±1.2Gu Repeatability ± 0.5 Gueba Projecting Angle 20˚/60˚/85˚ Stability ±0.4Gu/30min Dimensions 140 mm×80 mm× 48 mm Power Supply 1.5V AA Battery Environment Temperature 0°C - 40 °C Relative Humidity ≤ 85% Standard Panel Dimension 95×40mm