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Sunday 20 April 2014 • 23:27 GMT • Last update 16:46



A tachograph is a device used in commercial vehicles which measures time, speed and distance.

Tachographs are used to keep track of drivers' working hours, which are legally restricted.

Analogue tachographs record information on paper disks, but since 2006 new vehicles have been fitted with digital tachographs which record information onto a flash memory card.

Not to be confused with tachometer.

Choose a letter from the Jargonbuster

Choose from above to see the list of jargon for that letter,
or see the full Jargonbuster list here


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