The 7500/4A impressive performance, value with simplicity and rugged durabliity is the heart of any inventory control requirement. The 7500/4A is fast, dependable and designed for speed with exceptional accuracy. The 75004/A features a built in AC/DC power for portability. Four preset sample size for frequent operations, and fast one-button operation. Ranging in weights of 2 pounds to 200 pounds the 7500/4A is conformable to your needs.