RS-130 Price Computing Scale with Stainless Steel Platter. NTEP Certified, Legal for Trade, Customer Display on Rear of Unit, Compact Design, Switchable Between lb, kg or ozs, Internal Battery, AC or DC Operation, In-Use Cover, Battery Charge Indicator, 8 PLU Keys for Quick Price Lookups, Computes Customer Change, 89 PLU's for Indirect Price Lookup, Platter Size 9.5" X 12".