SF-400C is a general purpose digital precision scale. With its high degree of accuracy (one hundredths of a gram), tare and pieces counting functions, SF-400C is ideal for a wide variety of precision weighing needs (jewelry, coins, herbs, spices, medication). It features a large platform suitable for bulkier items as well as a wide base for stability. Features ---Large base and platform, ample space for larger items ---Tare function to subtracts weight of containers ---Piece counting function for determining quantities of identical items (pins, beads, coins, etc) ---Back-lit display (light can be turned off to save power) ---Runs with either AA batteries or DC power. One USB cord and one wall adapter are included. With the cord, SF-400C can also be powered by any USB port (e.g., the USB port on your computer).