Applies to industry, agriculture, business,school,scientific research and other units for the rapid determination of quality and quantity of objects. Automatic fault detect. High accurate weighing results,fast and stable,easy to operate. Over load alarm and protection function. LCD Display white backlite or Green color. Weighing units,gm,ct,oz,lb,tola,gn. 6V/2.5Ah rechargeable battery inside. External calibration. Stainless steel pan. RS 232 interface (optional).