lathem 800P heavy-duty time clock

800P Heavy-Duty Time Clock View on Amazon

Price and rank updated 05/11/2021

Time clocks can have some annoying qualities. They might require messy ribbons, or daylight savings adjustments, or they may even make loud noises. Maybe not huge problems, but inconvenient to say it kindly.

The Lathem 800P was designed to fix those annoyances. It doesn't require ribbons, it doesn't need to be adjusted for daylight savings, and it operates quietly. What's not to like about that?

It works using patented thermal sensitive time cards. Instead of a noisey dot matrix printer, or loud typewheel, it just applies heat to print.

Granted, it's still a simple method of tracking time, but could be the perfect solution for your needs. Not only will it work in the office, but it can work in harsh environments too, like warehouses, farms, and factories.

All in all the 800P is easy to use, can be used by any number of employees, and works with any pay period.

Here's what comes in the package

  • (1) Lathem 800P time clock
  • (25) Lathem E8 time cards
  • (1) AC wall adapter
  • (1) wall mount bracket with hardware

Be aware the 800P does not calculate or total the hours on the time card. For that, you'll need to look at calculating time clocks instead.

The 800P is assembled in the United States using imported parts.

Who is it best for?

Employers wanting a simple, versatile, and durable time clock. Use it in the office or in the shop, as long as there is AC power.

How do employees clock in?

This part is still a little old school. Employees insert a heat-sensitive time card in the front slot, and align it with the center light until it turns green. The clock with automatically prints when aligned.

Lathem 800P with time card

Lathem 800P time card

How does it help prepare payroll?

Again, the 800P does not calculate hours. You'll have to add the hours manually. With just a few employees, that's okay. With a lot, it will take some time.

What are the features?

Patented WhisperPrint technology eliminates the need for ribbon. Making it virtually maintenance-free

True-Align printing system with LED indicator helps prevent overprint errors.

SmartClock technology automatically adjust for daylight savings and leap years. It also retains time, date and settings during power outages.

Automatic print activation when aligning card.

Made with heavy duty steel and ABS construction to withstand high volume and harsher environments.

Can be placed on a desktop or mounted to a wall. Includes all necessary hardware.

Lathem 800P features

Lathem 800P front


The Lathem 800P is a great choice if you're looking for a simple time clock with convenient features. It gets the job done, and eliminates the need for ribbons, time adjustments, and distracting noise.

Best used if you need a quiet time clock, and prefer something simple.


  • Works well in harsh environments
  • Quiet operation. Uses patented thermal printing
  • True-Align helps prevent overprinting
  • Automatically adjust for daylight savings, and leap years
  • Made from heavy duty steel and ABS
  • Eliminates the need for replacement ribbons


  • Does not calculate or total hours on timecard
  • Requires Lathem's special thermal-sensitive time cards

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