Units : g, oz, gn, ct, dwt, tola/pcs Capacity : 2kg/0.1g, 3kg/0.1g, 500g/0.01g, 300g/0.01g Scale size : 160*125*38mm Carton size : Scale color : black Power : 3*AA batteries or AC adapter(not include) Packing : 30pcs/carton, color box. 67*47.5*18.5cm 22Kg Features :High-precision straining resistance sensor Auto zero and auto off(after 60 seconds of inactivity) functions Blue backligh