Error range: ±0.005g Weight units: g/ozt/dwt/ct/gn/tl/mg Tare range: Full capacity tare Power: 2 AAA batteries (not included) Auto-off: 180 seconds Net weight: 100g High precision: Accuracy of 0.001 grams, equipped with I-sensor for fast response and stable performance with blue backlit LCD display Compact size, portable, lightweight Unique windproof cover design prevents external environmental interference during weighing Count function (PCS button) with piece counting and tare weighing for improved accuracy Hold function locks the weight reading Mini digital scale suitable for jewelry, laboratory, diamond, and carat weighing applications Model Number: Milligram Scale Capacity: 20g Color: Black Material: ABS + steel plate Scale dimensions (L x W x H): 110 x 63 x 15mm Package Contents: 1 x Jewelry scale (battery not included) 1 x Weighing tray 1 x Plastic tweezers 1 x Calibration weight 1 x English manual Note: Light and display differences may cause slight color variations. Measurement error allowance: ±1-3cm.