The SB120 is an economical counting scale you can depend on for a variety of office and light industrial use. Intuitive keystrokes and an easy to operate design allows for quick operator training, and a variety of functionality. The unique features of the SB120 include: keyboard piece weight entry, "Count Check", which allows you to verify package counts when configuring upper and lower limits or "Accumulation" allowing you to accumulate the piece counts for simple packing or receiving verification. Operator Keys - 0-9, Units, Zero, Enter, Tare, Accumulation, Clear, PCWT, Upper, Lower, On/Off, Auto Off. Top Plate Size - 11.5"W x 8.75" L x 0.5" H. AC adapters and 6V4A/Hr rechargeable lead-acid battery included.