High Precision Scales 50 x 0.001g Professional Digital Milligram Scale Pocket Scale Laboratory Letter Gold Jewelry Scale with Tweezer <p>Utilizes high precision sensor system, weighing items as little as a milligram and as heavy as 50 grams. This accurate, reliable mini scale is the most important tools for your gold, jewelry, diamonds, coins, powder or medication.</p> <p>The ability to convert the results between the several measurement units offered by this jewelry scale or switch results between gram, ounce, grain, carat, ozt and dwt . And it remembers the last unit you used.</p> <p>Easy Calibration: This scale comes factory calibrated and ready to use. Just in case you need to calibrate it. Comes with easy to follow calibration instructions. You'll just need to pick up a 50 gram calibration weight to get the job done.</p> <p>Bright Backlit Display: the LCD display models with sharp color contrast and clear result indications for easy reading. Powered by 2 AAA batteries (included). Auto shut off after 60 seconds without operations(default).</p> <p>Pocket Size: 137X86X48MM. 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 pretty much anywhere you want...stick it in a pack, purse, or in your shirt pocket.</p>