With LCD display, the most practical tire pressure gauge. ACC-2086:four display units: PSI,KPA,BAR,KG/CM² ... ( Also can order a variety of colors )Reminder : Pressure is a tire life, Tire pressure is too high and low point, will reduce its ... course, is to open the lid of the tire. 2 , take out ready tire pressure gauge . 3 , take tire pressure gauge head right, at the hole, pressing 4 ...