Horizon SF-400D 500g x 0.01g Digital Precision Scale - Large Base - Counting function Large base and platform, ample space for larger items Support all weighing modes: gram, grain, carat, pennyweight, troy ounce, ounce Tare function to subtracts weight of containers Piece counting function for determining quantities of identical items (pins, beads, coins, etc) Runs with either AA batteries or power cord (not included)