Patent ID: 6838983

Claim:
A device for measuring the pressure of a tire, the device comprising: (a) a microcontroller configured to calculate a target pressure; (b) a pressure sensor coupled to the microcontroller for measuring an internal pressure of the tire; (c) a first temperature sensor coupled to the microcontroller for measuring an internal temperature of the tire; (d) a user input coupled to the microcontroller for inputting a recommended pressure for the tire; (e) a second temperature sensor coupled to the microcontroller for measuring an ambient temperature; and, (f) a display coupled to the microcontroller for indicating: (i) the internal pressure of the tire; and, (ii) the target pressure, wherein the microcontroller converts the recommended pressure into the target pressure based on a ratio of the internal temperature in Kelvin to the ambient temperature in Kelvin, such that a user is able to inflate and deflate the tire until the display indicates that the internal pressure is equal to the target pressure.