Error range: +-0.005g Weight units: g/oz/ozt/ct/gn/tl/mg Tare range: Tare full capacity Power: 2 AAA batteries (not included) Auto-off: 180 seconds Platform size: 50mm Net weight: 100g High precision: Accuracy of 0.001 grams, uses I-shaped sensor, fast reaction speed, accurate and stable with large blue backlit LCD display, easy to read, compact size, portable Unique windproof cover design prevents external environmental disturbances from affecting weighing accuracy Count (PCS button) function with accurate counting and tare weighing function ensures more precise results; hold function locks weight reading Mini digital scale can be used as a jewelry scale, lab scale, diamond scale, and carat scale, ideal for jewelry and medicinal applications Model Number: Milligram Scale Capacity: 20g Color: Black Material: ABS + steel plate Scale size (L x W x H): 110 x 63 x 15mm Package Contents: 1 x Jewelry scale (battery not included) 1 x Tray 1 x Plastic tweezers 1 x Calibration weight 1 x English manual Only the above package content is included; other products are not included Note: Lighting and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowed error is +/- 1-3cm