Heavy-duty time clock takes tedious manual calculations off the to-do list & works in conjunction with TimeTrax Sync wall clocks & bell / horn / tone systems to promote the highest levels of productivity & efficiency. Heavy-duty steel construction stands up to the harshest, such as manufacturing plants, garages & distribution centers. Time clock automatically adds worked time between punches & tallies weekly, every two weeks, semi-monthly or monthly pay periods for up to 100 employees & flexible pay periods. Automatic abound with top-feed & alignment ensures quick & precise time card punches. With a 30-day memory, internal battery backup safeguards data & setting. Time clock prints in English, Spanish or French. Simple setup, operation & ribbon changes make this time clock a favorite with small businesses. Time clock includes 25 time cards.