What is a “Tachograph”?

1. A device installed by the vehicle’s owner under in accordance with the importer’s instructions, and traces the number of rounds of the wheels.
2. Correct answer: A device in a vehicle which has a disc that traces and records time, distance, driving speed and driver work hours.
3. A device that is installed in a vehicle in accordance with the importer’s instructions and that traces the vehicle’s speed in order to save on fuel.
4. A device that is installed in a vehicle and that registers vehicle-related technical data and allows the detection of technical malfunctions while driving.

WhyA tachograph records time, distance, speed and the driver's working hours on a disc. It is used to check that the driver kept to rest times and speeds, not to find faults.