Use as a time clock, time stamp or numbering machine. 18 preset formats or custom print up to three lines. Built-in lithium battery keeps time and settings during power failures. Automatic month, day, date and daylight saving adjustment. One- to eight-digit numbering with up to nine repeats. Password protection. Wall or table mount. Optional NiCad battery pack allows up to 24 hours or 200 prints if AC power is lost.