odometer

noun

1. An instrument, usually embedded within the speedometer of a vehicle, that measures the distance the vehicle has traveled since production.

   “When the car was delivered about eight weeks later, it was not the model that had been displayed on the show and it had more miles on the odometer than the car she had been promised.”

   “On Sunday, the robot rover advanced another 157 feet (48 meters) as it continued along the rim of a Martian crater, putting Opportunity's total odometer at 25.01 miles (40.25 km), according to NASA's Jet Propulsion Laboratory near Pasadena, California.”

   “Tesla (TSLA.O) faces a proposed class action claiming it speeds up odometers on its electric vehicles so they fall out of warranty faster, saving Elon Musk's company from having to pay for repairs. The plaintiff Nyree Hinton alleged that Tesla odometer readings reflect energy consumption, driver behavior and "predictive algorithms" rather than actual mileage driven.”

2. A wheel used by surveyors, which registers distance traveled.