Professional Precision The Milligram digital scale has an accuracy of 0.001g and a maximum weight of 50g, which means that it is professional enough to be used as jewelry scale, in the laboratory, for diamonds and for weighing carats . Multifunctional scales The digital scale fine scale has the function of unit conversion, taring, calibration and counting. Automatic switchtooff function (3 min). Jewelry scale with builttoin 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 the M according to your weighing habits. The pocket scale has an LCD display and the measurement data and weight units are clearly displayed. Easy to Carry These small digital scales are easy to carry. And the weighing bowl is well protected by the transparent cover. Within the weight capacity, the electronic scale can weigh the weight of many lighter objects such as diamonds, gold, silver, coins, gems, pills, cosmetics, tea, powder and more. Package 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 or oz or dwt or ct or gn or tl or ozt or mg Tare range: Tare full capacity Automatic switchtooff: Switch the device off after 3 minutes of nontouse Operating temperature: 10to30 Power supply: USB cable or 2 x AAA batteries Dimensions: 12 x 7 x 3.8cm Net weight: 160g Note: Only operate the scale on a stable, vibrationtofree surface. Avoid shaking, falling, or shocking the scale. For accurate results, please always place the item in the middle of the platform. Never charge the scale with items that exceed its capacity. Overcharging will permanently damage it. Keep your scale in a dry and clean environment. Dust, dirt, moisture, vibrations, air currents and close proximity would negatively affect the reliability and accuracy of your balance. Please calibrate the scale before use, calibrate for high precision.