Pelouze PS5DL ( PELPS5DL ): 5-lb. Capacity Internet Downloadable Digital Postal Scale. No replacement chip needed. Easy Internet download for new rates. Popular U.S. mail rates. Uses 9V battery (sold separately) or optional AC adapter (PEL-ADPT2) sold separately This scale computes the cost of mailing/shipping your letter/package. When shipping rates change, scale is easily updated through the Internet at a small cost. For First Class, Priority, Express Mail and International Mail. Weighs in 0.1-oz. increments. Shipped without rates. The first rate download is free at the time of scale registration. This scale is intended for private use only—it is not legal for trade. 5-1/2 x 5-1/2 Platform