Error range:+-0.005g<br> Weight units: g//ozt/dwt/ct/gn/tl/mg<br> Tare range: Tare full capacity<br> Power: 2 AAA batteries (not included)<br> Auto-off: 180 seconds<br> size: 50mm<br> Net weight: 100 g<br> High precision: Accuracy of 0.001 grams, use I- sensor, fast reaction speed, and stable with blue backlit<br> LCD display, easy to read, compact size, portable, lightweight<br> Unique windproof cover design, prevents external environment disturbance affecting the weighing accuracy<br> Count (PCS button) function with count and tare weighing function ensures more precise and the hold function<br> will lock weight reading<br> Mini digital scale can be used as a jewelry scale, lab scale, diamond scale and carat scale, perfect for jewelry, medicinal<br> Model Number: Milligram Scale<br> Capacity: 20g<br> colour:black<br> Material:ABS+ steel plate<br> Scale size (L x W x H): 110 x 63 x 15mm<br> Package Contents:<br> 1 * Jewelry scales('t include battery)<br> 1 * Tray<br> 1 * Plastic tweezers<br> 1 * Calibration weights<br> 1 * English manual<br> Only the above package content, other are not included.<br> Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.