... selection (bar, Kpa, Kg/cm2, psi)SCALE UNIT CONVERSION TABLE 1 BAR=100KPA EQUAL TOPSI(LB/IN2)BARKG ... be displayed.Notes:For accuracy, check pressure when tires are cold. Pressure increases with heat. Tires can lose ... one pound per month under normal conditions. Proper tire pressure improves gas mileage, handling, braking and durability.Caution ... to 50, portable, car or bike air pressure test, SMT1305