How to Read a Pressure Gauge When Inflating Tires?

[DiEsther]

Correct usage of a tire pressure gauge is as follows: 1. The angle between the center line of the pressure gauge's measurement port and the axis of the gauge body should be 90°-180°: The scale is a quadrangular prism with a range of 0.07Wpa-0.4Wpa. Before reading, gently tap the instrument's casing or glass surface with your finger to eliminate friction in the transmission mechanism. 2. When observing, the pointer should overlap with the mirror pointer: The value indicated by the pointer at this time is the pressure reading, accurate to one decimal place. Read the temperature value on the pressure gauge, precise to one decimal place. 3. Align and press the measurement end notch of the pressure gauge with the tire valve: At this point, the pointer of the tire pressure gauge will deflect, and the indicated value is the inflation pressure of the tire. If the gauge's indicator rod is pushed out by the pressure, the value displayed on the rod is the tire's inflation pressure. The greater the internal pressure, the more the pointer will deflect.