Available with choice of power sources. Six-volt version operates from four D-cell batteries. Specially designed A to D converter and programmable sleep mode conserve battery life. Second version is driven by twelve-volt DC power source. DC version comes standard with RS-232 serial port, real time clock and dual cutoff outputs. Programmable from .0001 to 999,999 pounds or kilograms. Watertight stainless steel enclosure with eight one-inch high digits and ten annunciators.