Optima OP-915 series bench scale, paired with industry's top digital weight indicators OP-900 (LED or LCD display), is designed for speed and accuracy with an extremely heavy-duty platform and rugged stainless steel enclosure that provides top performance for high-usage applications. Selectable weight units, along with Gross, Tare, and Net conversion functions make this scale suitable for many applications. A bi-directional RS232 serial port, optional printer and data-logging software and optional remote large display, auto shut-off and sleep modes to conserve battery power allows you to tailor the OP-915 to your needs. And thanks to its rechargeable 90-hour battery, you can be sure this unit will stay powered for days at a time, even without a nearby outlet. NTEP class III, 5000 divisions, legal-for-trade certification. It’s available in 100 to 1,000 pound capacities and various size ranges. It’s ideal for busy shipping docks, outdoor markets, manufacturers, food processing, and other bulk sales areas.