An instrument which measures distance covered by a vehicle.

The instrument used to measure the distance covered by a vehicle is called an odometer.
Odometer Details
1. Function:
The odometer measures the total distance traveled by a vehicle. It is typically displayed on the dashboard and is calibrated in kilometers (km) or miles, depending on the country.
2. Types:
o Mechanical Odometers: Use gears and cables connected to the vehicle's wheels or transmission to record the distance.
o Digital Odometers: Use electronic sensors to measure the distance and display it on a digital screen.
3. How It Works:
o The odometer works by counting the rotations of the vehicle's wheels and converting this information into distance traveled, based on the circumference of the wheels.
4. Applications:
o Tracking the distance for maintenance schedules (e.g., oil changes).
o Calculating fuel efficiency.
o Recording mileage for resale or insurance purposes.
Related Instrument
• Speedometer: Often located near the odometer, it measures the instantaneous speed of the vehicle, while the odometer tracks cumulative distance.