SD75 SD Series Shipping Scale 165 lb x 0.1 lb The SD Series is a well built portable bench scale designed specifically with affordability, utility and everyday usage in mind. Durable painted steel treaded platform, ABS plastic housing and mounting brackets on remote indicator. Ideal for home, office, mail room, shipping and receiving. 4 digit, 7 segment 0.8 high LCD. Weighing Units are lb, kg. Keys are: ON/OFF/ZERO, UNITS/CAL. AC Adapter 9V DC(included) or 360 hour battery operation. (3) C Alkaline batteries (not included). Auto shut off feature after 4 minutes of no activity (battery operation only). 1 year warranty.