1. Error range: ±0.005 grams 2. Weight units: grams (g), troy ounces (ozt), carats (ct), grains (gn), taels (tl), milligrams (mg) 3. Tare range: Full - scale tare 4. Power supply: 3 AAA batteries (not included) 5. Automatic shutdown: 180 seconds 6. Scale pan size: 50 millimeters 7. Net weight: 100 grams 8. High precision: Accuracy up to 0.001 grams. It uses an I - shaped sensor, with relatively fast response speed, relatively accurate and stable performance, and is equipped with blue backlight. 9. LCD display for easy reading. It is relatively small in size, easy to carry, and relatively light in weight. 10. Unique windproof cover design to help prevent external environmental interference from affecting weighing accuracy. 11. Counting (PCS button) function with relatively accurate counting. It has a tare weighing function to help ensure relatively higher accuracy, and also has a locking function to lock the weight reading. 12. The mini electronic scale can be used as a jewelry scale, laboratory scale, diamond scale, and carat scale, and is suitable for weighing jewelry, medicines, etc. 13. Model: Milligram scale 14. Measuring range: 20 grams 15. Color: Black 16. Material: ABS + steel plate 17. Scale body size (length × width × height): 110 × 63 × 15 millimeters 18. Package contents: - 1 jewelry scale (without batteries) - 1 tray - 1 plastic tweezers - 1 set of calibration weights - 1 English instruction manual 19. Only the above - mentioned package contents are included, and other products are not included. 20. Note: Light and different monitors may cause slight differences between the item color and the actual object. The allowable measurement error is ±1 - 3 centimeters.