Uses a high-precision sensor system, weighing items as little as one milligram and as heavy as 50 grams. This precise and reliable mini scale is the most important tool for your gold, jewellery, diamonds, coins, powder or medicine. The possibility of converting the results between the different units of measurement offered by this scale of jewelry or change the results between gram, ounce, grain, carat, ozt and heavyweight. And it remembers the last unit you used. Easy Calibration: This scale is factory calibrated and ready to go. Just in case you need to calibrate it. Comes with easy to follow calibration instructions. You'll just need to grab a 50 gram calibration weight to get the job done. Bright Backlit Display: LCD display models with crisp color contrast and clear result indications for easy reading. Powered by 2 AAA batteries (battery included). Automatic shutdown after 60 seconds without operation (default). Pocket size: 4.4 inches x 2.4 inches x 1.1 inches. The weighing area of this scale is 3 square inches. The compact and lightweight design of this mini scale is quite refreshing. You can take it just about anywhere you want...put it in a bag, purse or in the pocket of