The Truweigh Xeno Digital Milligram Scale measures up to 20g x 0.001g. Scale dimensions are 4.3" x 3.3" x 1.4" and comes with calibration weights, weighing pan, and (2) AAA batteries. Features a back lit digital readout. Weighs in: g, oz, ozt, dwt, gn, ct. 10 year limited warranty.