Tire inflator with inflation timer

A portable inflation device for inflating an object, the portable inflation device comprising:

• an air pump for delivering pressurized air and having
• an elongated air hose, and
• an inflation nozzle that is configured to connect to the object;
• a user interface configured to receive a target pressure and a unit of pressure in which to display a current pressure and the target pressure;
• a first inflation indicator configured to display
• an estimated remaining time,
• the target pressure,
• the current pressure of the object,
• a field that graphically represents the estimated remaining time, and
• the unit of pressure in which the target pressure and the current pressure are displayed;
• a second inflation indicator configured to display the estimated remaining time;
• and
• a control device wirelessly coupled to the user interface and the second inflation indicator, the control device configured to
• control operation of the air pump, the control device including a sensor that detects the current pressure,
• receive, via wireless communication, the target pressure from the user interface,
• convert the target pressure and the current pressure to the unit of pressure in which to display the current pressure and the target pressure,
• calculate the estimated remaining time until the current pressure is within a predetermined margin of the target pressure,
• send the estimated remaining time to the first inflation indicator;
• and
• send, via wireless communication, the estimated remaining time to the second inflation indicator.