Model ATT310 Electronic Totalizing Time Recorder Model ATT310 Electronic Totalizing Time Recorder, Optional Backup Battery, Ribbon Cartridge Set This Clock Only Once! Maintains time when AC power is off Changes day/date/month automatically Auto daylight savings time adjustments Large LCD date and time display with quiet dot matrix printer Wall or table mount Calculates employees time worked for weekly pay periods. Prints elapsed time between punches and totals for pay period in 1, 6, 10 or 15 minute increments. Auto break/lunch deduct. 200 employee capacity. Select month to print in one of seven languages. Optional Backup Battery (ACP580108) and Ribbon Cartridge (ACP390121), sold separately. Weekly Time Cards (ACPATT311), sold separately. UL/cUL approved. 6-7/8w x 6-9/16d x 8-5/16h. Shpg. wt. 8 lbs. ATT310 Time Recorder