We are offering scaletech hanging pocket scale models 10s 20s 40capacity10 kg20 kg 40 kg readability5 gm10 gm 20 gm units of measuregm,kg,ozt,dwt,gnoperating temperature00c to 400cpower supply4 * aa batteries or ac/dc 9v 100 ma adaptor ( not included) standard features compact , easy to carry style. precise resolution & most competitive modeldifferent weighing modes such as gm, kg, ct, dwt, gnauto zero treking & auto calibration