Features Simple to operate: Just a few keys make balance operation easy to understand. Compact design: Fits everywhere - with large weighing pan. Versatility: Choice of applications for different tasks. Portability: Battery or internal AccuModule can make balance independent of the AC power supply. Rugged and durable: Internal overload protection for longevity. Bright 7 segment LCD display Impact resistant plastic housing Built-in overload protection 25-30 hours battery life (standard batteries) if required Built-in below-balance weighing facility The PS Family of scales offers a broad range of weighing capacities for any parcel or letter applications. The entire family connects and communicates the same way to a host computer. They can be connected to a computer that runs carrier manifest or postal counter software. The weight is sent electronically to the computer and the application software uses it to calculate a rate for the parcel or letter.