What does "tachograph" mean?

A device that records the distance and time traveled by a vehicle (especially a truck or coach), used to check the drivers' working time.

How do you pronounce "tachograph"?

Pronounced //ˈtækəɡɹæf//.

Common synonyms include: chart medium, driving hours recorder, onboard data recorder, record chart, tachograph chart, vehicle data recorder.

/ˈtækəɡɹæf/ noun

noun ·Rare ·Advanced level

Noun

1
A device that records the distance and time traveled by a vehicle (especially a truck or coach), used to check the drivers' working time.
2
a tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle wordnet

From tacho- + -graph.