This Optima Scale Portable Bench Scale is ideal for busy industrial environments such as shipping docks, outdoor markets, manufacturers, food processing plants and bulk sales areas. With large wheels, a 27 1/2in. column height and a heavy-duty back rail, this scale is easy to move from place to place within a facility as necessary. Wherever you move it, it's instantly ready to weigh. Designated Legal for trade by NTEP and Measurement Canada, this scale has overload protection. The super-bright splash-proof LED indicator shows lbs./ozs. or kg/g and delivers a fast response rate ideally suited to an industrial environment. This accuracy of this indicator is not affected by off-center product loading. The indicator includes a rechargeable 60-hour battery for RS232 bi-directional interface with 115 Volts AC, 50/60 Hz. The pan is stainless steel, and the platform is mild steel for strength, durability and easy cleaning.