Eliminate postage overpayment and make fewer trips to the post office or other shipping locations with this digital scale. Easily download new rates from the Internet when rates change. No chip replacements needed. Large 9-1/2" x 8" platform for heavier packages. Rates included for U.S. Postal Service, FedEX, UPS and DHL. Additional rates featured for Next Day, 2nd Day, 3rd Day, Ground, Return Receipt, and Parcel Post. Negotiated rates can be programmed. Serial cable included. Auto shutoff whenscale is not in use. Error and overload warnings. Tare feature allows weight of container to be removed so weight of contents is displayed. Hold feature locks weight when weighing large items that obstruct the display. Digital postal scale features a channel for mailing tubes, a stand for large envelopes and an AC power adapter.