Check the listing for details. Saga Mercury BASIC Digital Postal Scale w/ Hold, Tare, Auto-Off, AC Adapter. Condition: New – Open box. Listed at 25.00 USD. The Saga Mercury BASIC Digital Postal Scale is a reliable and versatile tool for shipping and postal services. With features such as a backlit display, tare function, auto-off capability, and the ability to hold packages securely in place, this digital postal scale offers convenience and precision. The AC adapter ensures a reliable power source for continuous use, making it a vital asset for businesses in the shipping and material handling industry.