Usage Tips:1.Milligram Powder ScaleAdvanced sensor technology delivers quick, Weighs up to 50 grams, accurate between 0.001-0.005 gram increments, displays results in g, oz, ozt, dwt,ct and gn.2.Tare Function and Protective Cover DesignTare button subtracts container weight to zero out the scale so you only measure what you want; The flip-down shield protects the delicate weighing surface and prevent external interference from weighing accurate, make pocket reloading scale stable and durable.3.Auto-off Feature and LCD Back-lit DisplayDigital lab / mg scale automatically turn off after 3 minutes of inactivity and LCD display models with sharp color contrast and clear result indications for easy reading.4.Multi Functions 4.3x2.7x0.7 inches digital powder microgram scale can be used as a jewelry scale, lab scale, diamond scale , carat scale ,coffee beans, gemstones, pills , mini food, powders scale etc.5.What You Get1 X Digital Milligram Scale ,1 X Tweezers ,1 X 50gram Calibration Weight ,1 X Weighing tray ,2 x AAA battery.