Digiweigh DW-100AS 100g X 0.01g Professsional Digital Pocket Scale with Calibration Weight Capacity:100g~3.528oz~500ct~1542gn Accuracy:0.01g~0.001oz~0.05ct~0.1gn 4 Modes: Grams(g), Ounce(oz), Carat(ct) & Grain(gn) TARE function to subtract the net weight of the container Include 100g (2X50g) Calibration Weight, 2 x AAA batteries & Operation Manual