Smart Weigh High Precision Digital Milligram Jewelry Scale, 20 x 0.001g, Calibration Weights and Tweezers Included. MULTIFUNCTIONAL- Scale is able to weigh in various measurements, making it perfect for all your weighing needs! Weighs in g, oz., ct., ozt., dwt and gn. Whether you are weighing gold, powder, medication or anything for cooking this scale has the right measurements for you! TARE FUNCTION- Scale comes with a tare function for items that are difficult to weigh and need to be placed in a container or on one of the weighing pans. Place your container or pan on the scale, press the tare function and then put your items in the container/pan. ACCURATE- Utilizes high precision sensor system to get an accurate reading every time! This scale has a thousandth of a gram accuracy (0.001g) so it is extremely precise. This accuracy takes the guesswork out of measuring finer items, so you can just place the items on the scale and know that your reading is the most accurate it can be with this top of the line scale! CALIBRATION WEIGHTS INCLUDED  Although your Smart Weigh scale will arrive calibrated, we have included two Smart Weigh 10g calibration weights. Should you notice any inaccuracies in your scale throughout your time using it, simply use these weights and follow the directions to re-calibrate it so you can continue to use your scale accurately! CUSTOMER SATISFACTION  All Smart Weigh scales are individually tested and backed with a Two-Year Warranty