Tire pressure gauge or car tire pressure gauge is a special pressure gauge used to measure the pressure inside the tires of cars, trucks, bicycles, and other vehicles. The tire pressure gauge uses pressure sensing technology, with high measurement accuracy (less than 0.05% error), and a long service life. Using a tire pressure gauge to test tire pressure in time allows drivers to quickly understand the tire pressure of their cars. The pointer type is simple to operate, the digital type is convenient to read, and the alarm type does not show the tire pressure value. Each tire pressure gauge has a certain pressure measurement range, and it is usually only 0-100PSI for home use, without the need for heavy load tire pressure gauges for trucks and other vehicles.