Professional precision Milligram digital scale has an accuracy of 0.001g and a maximum weight of 50g, which means it is professional enough to be used as a jewelry scale, in the laboratory, for diamonds and for weighing carats. Multifunction scales The digital scale's fine scale has the function of unit conversion, tare, calibration and counting. Automatic shutdown function (3 min). Jewelry scale with built-in rechargeable battery and USB cable. Eight weight units The pocket scale has eight weight units: g, mg, ct, oz, ozt, gn, dwt, tl. You can change the weight unit by pressing M according to your weighing habits. The pocket scale has an LCD display and measurement data and weight units are clearly displayed. Easy to carry These small digital scales are easy to carry. And the weighing pan is well protected by the transparent cover. Within the weight capacity, the electronic scale can weigh many lighter items such as diamonds, gold, silver, coins, gemstones, pills, cosmetics, tea, powder and more. Package includes: 1 jewelry scale, 2 x AAA batteries, 1 USB cable, 1 calibration weight, 1 weighing pan, 1 tweezers, 1 instructions. Specifications: Capacity: 50g Units: g / oz / dwt / ct / gn / tl / ozt / mg Tare range: Tare full capacity Automatic shutdown: Turn off the device after 3 minutes without use Operating temperature: 10-30 Power supply: USB cable / 2 * AAA batteries Dimensions: 12 * 7 * 3.8 cm Net weight: 160 g Note: Use the scale only on a stable, vibration-free surface. Avoid shaking, dropping or shocking the scale. For accurate results, always place the item in the center of the platform. Never load the scale with items exceeding its capacity. Overloading will damage it permanently. Store your scale in a dry and clean environment. Dust, dirt, moisture, vibrations, air currents and proximity would negatively affect the reliability and accuracy of your balance. Please calibrate the scale before use, calibrate for high precision.