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Product Details

Lathem 7500E Calculating Atomic Time Clock


  • Calculates actual or rounded time
  • Accumulates total worked hours
  • Handles up to 100 active employees or jobs
  • Auto-feed and auto-eject of time cards
  • Optional automatic break deduction from totals
  • Print 12-hour (AM/PM) on 24-hour time
  • Print regular minutes (1/60) or 1/100 of hour
  • Fully automatic print alignment
  • Unlimited punches per day
  • Prints day of week or date
  • Automatic differentiation of the front and back of a double-sided time card
  • Automatic or manual card reset
  • Ability to transfer card totals to another card
  • Wall or table mount
  • Automatic Daylight Savings Time adjustment
  • Built-in lithium backup battery for 3 years of data protection
  • Optional Ni-MH battery backup system providing full operation during power failures
  • Prints English, Spanish or French
  • One year warranty


With large clear display, the 7500E electronic time clock provides precise and exact time information using a signal from the WWVB atomic clock in Fort Collins, Colorado. An atomic time clock that automatically calculates worked time between punches and accumulates totals on the card for up to 100 active employees or jobs.

The 7500E lets you set pay periods or set job modes for accurate costing information. You can choose to automatically calculate actual or rounded time, and set the time clock to support automatic break deductions from daily totals. The internal lithium battery maintains the time, card totals, and program settings for up to 3 years without power. Optional rechargeable battery keeps unit fully operational for up to 24 hours in case of a power failure.

Automatic print-alignment and auto-sensing of front and back of card eliminates operator mistakes. Auto-feed and auto-eject of time cards reduces employee time required to punch in & out. Automatic Daylight Savings Time adjustment makes this atomic time clock virtually maintenance free.


  • Dimensions: 6.3″W x 5″D x 8″H
  • Weight: 3.3 lbs. Power Consumption: 110-120VAC or 220-240,
  • 50/60Hz, 0.2A
  • Operating Temperature: 23°F – 113°F (-5°C – 45°C)
  • Operating Humidity: 20% – 80% RH, non-condensing