The tire pressure gauge is a sensor that reads the tire pressure of all four tires of a vehicle.
Have you ever looked at your tires in the parking lot and wondered if one was lower than the others? Did you brush that thought off, thinking it must be your imagination or the way the car is sitting? You might be right but how do you know for sure? If you're being honest, odds are that you don’t check your own tire pressure.
The most neglected safety device your car is equipped with is your spare tire.