Multiple Weighing Units – Including grams, kilograms, pounds, ounces, a combined pound:ounce display, troy ounces and penny-weights. Multiple Application Modes – Including enhanced parts counting, percentage weighing, totalization, and display hold. Easy to Use -The high-contrast LCD display combined with soft key operation makes the Ohaus Scout Pro a snap to operate. USB or RS232 Connectivity – Quickly-installed option with integral cable allows data connection to PC or printer. Easy to Clean – Removable stainless steel weighing platform, sealed front panel and molded spill ring help keep the Ohaus Scout Pro safe from spills. Battery or AC Power – Uses 4 “AA” batteries with auto shut-off feature for 40 hours of operation, or the Scout Pro can be run on the included AC power pack. Integral Weigh-Below Hook – Critical for density or specific gravity determination.